This article records new taxa of fossilarchosaurs of every kind that are described during the year 2019, as well as other significant discoveries and events related to paleontology of archosaurs that occurred in 2019.
A peirosauridcrocodyliform. Genus includes new species B. neuquenianus. Announced in 2018; the final version of the article naming it was published in 2019.
Hart (2020) considered it to be likely a junior subjective synonym of the species Isisfordia selaslophensis (Etheridge, 1917), but was unable to determine this with certainty, as both taxa are currently represented by non-overlapping fossil material.[13]
Originally described as a member of Crocodyloidea, but now treated as a member of Orientalosuchina. Genus includes new species J. nankangensis. Announced in 2018; the final version of the article naming it was published in 2019.
Skull reconstruction of Jiangxisuchus, scalebar = 3 cm
A basal member of the tribe Machimosaurini; a new genus for "Teleosaurus" boutilieri Eudes-Deslongchamps (1868).
Pseudosuchian research
A study on the bone histology of Coahomasuchus chathamensis, and on its implications for inferring ontogeny and growth strategy of this species, is published by Hoffman, Heckert & Zanno (2019).[19]
Tolchard et al. (2019) revise fragmentary archosaurian remains from the latest Triassic lower Elliot Formation (South Africa), interpreting them as fossils of at least two distinct taxa of "rauisuchians", thus representing the southernmost palaeolatitudes that these animals are known to have occurred, their first definitive remains from southern Africa, and some of the most recent records of members of this grade.[20]
A study on the anatomy of the skeleton of Poposaurus gracilis is published online by Schachner et al. (2019).[21]
A study on the age of sandstones of the Badong Formation preserving fossils of Lotosaurus adentus is published by Wang et al. (2019).[22]
Description of the anatomy of the skull of a new specimen of Prestosuchus chiniquensis from the Dinodontosaurus Assemblage Zone of the Pinheiros-Chiniquá Sequence, Santa Maria Super sequence (Brazil) is published by Mastrantonio et al. (2019), who also present the first description of a rauisuchian cranial endocast.[23]
A study on habitat shifts during the evolutionary history of Crocodylomorpha is published by Wilberg, Turner & Brochu (2019).[24]
A study on patterns of body size evolution of crocodylomorphs is published by Godoy et al. (2019).[25]
A study on the quality of the fossil record of non-marine crocodylomorphs is published by Mannion et al. (2019).[26]
A study on the evolution of skull shape in crocodylomorphs is published online by Godoy (2019).[27]
A study on the diversity of feeding ecologies of Mesozoic crocodyliforms is published by Melstrom & Irmis (2019).[28]
A study on patterns of crocodyliform snout shape, on their inferred diet and on the relationship between form and function of crocodyliform skull shape throughout the evolutionary history of this group is published online by Drumheller & Wilberg (2019).[29]
Partial skeleton of a teleosauroid crocodylomorph, representing the most recent record of a definitive non-machimosaurin teleosauroid in Africa reported so far, is described from the Callovian of Tunisia by Dridi & Johnson (2019).[32]
Fossils of a member of Teleosauroidea with an estimated body length of 9.6 m, representing the most recent definitive record of Teleosauroidea reported so far, are described from the Lower Cretaceous (upper Barremian) Paja Formation (Colombia) by Cortes et al. (2019).[33]
Redescription of the holotype specimens of Mystriosaurus laurillardi and "Steneosaurus" brevior and a study on the taxonomic validity and phylogenetic relationships of these species is published by Sachs et al. (2019).[34]
A three-dimensionally preserved occiput of a member of the genus Torvoneustes, indicating that members of this genus reached larger body sizes than previously supposed, is described from the Upper Jurassic Kimmeridge Clay Formation (United Kingdom) by Young et al. (2019).[36]
A study on teeth morphology and tooth enamel microstructure in Mariliasuchus amarali is published by Augusta & Zaher (2019).[37]
A study on the arrangement and morphology of the osteoderms of baurusuchids is published by Montefeltro (2019).[38]
A study on the anatomy of the pterygoid region and skull airways of Caipirasuchus paulistanus and C. montealtensis is published online by Dias et al. (2019), who report possible anatomical evidence of vocal capacity of C. montealtensis.[39]
Description of fossils and possible gastroliths of a large-bodied sphagesaurid from the Upper Cretaceous Adamantina Formation (Brazil) is published online by Cunha et al. (2019).[40]
A study on the diagenesis of fossils of Montealtosuchus arrudacamposi from the Upper Cretaceous Adamantina Formation is published by Marchetti et al. (2019).[42]
A study on the phylogenetic relationships of members of Neosuchia and on the evolution of longirostry in this group is published online by Groh et al. (2019).[43]
A study on the taxonomic status and phylogenetic relationships of Sarcosuchus hartti is published online by Souza et al. (2019).[44]
Partial dyrosaurid skeleton discovered in the 1930s in Paleocene (Danian) strata along the Atlantic coast of Senegal is described by Martin, Sarr & Hautier (2019).[45]
Description of new dyrosaurid specimens from the Late Cretaceous–early Paleogene of New Jersey (United States), and a study on their implications for the validity of the species Hyposaurus rogersii, is published online by Souza et al. (2019).[46]
Revision of the large-sized neosuchiansKansajsuchus and "Turanosuchus" from the Late Cretaceous of Central Asia is published by Kuzmin et al. (2019), who interpret Kansajsuchus as a member of Paralligatoridae, and consider Turanosuchus aralensis to be a member of the genus Kansajsuchus belonging or related to the species K. extensus.[47]
A study on the inner cavities of the skull of the holotype specimen of Lohuecosuchus megadontos is published by Serrano-Martínez et al. (2019).[48]
Revision of the fossil material of Allodaposuchus precedens from Vălioara (Romania) is published online by Narváez et al. (2019), who emend the diagnosis for this species.[49]
A study on palaeodiversity of eusuchians over time is published online by De Celis, Narváez & Ortega (2019).[50]
A tooth of a juvenile specimen of Deinosuchus, providing new information on the ontogeny of this reptile, is described by Brownstein (2019).[51]
A well-preserved braincase of Diplocynodon tormis is described from the middle Eocene site of 'Teso de la Flecha' (Salamanca, Spain) by Serrano-Martínez et al. (2019).[52]
A study on the anatomy and phylogenetic relationships of Diplocynodon hantoniensis is published online by Rio et al. (2020).[53]
Chroust, Mazuch & Luján (2019) describe new fossil material of Diplocynodon from four sites in the Czech Republic dating to Eocene–Oligocene transition, and evaluate the implications of these fossils for the knowledge of the course of the Eocene–Oligocene cooling event in Central Europe.[54]
New crocodylian fossils, documenting the presence of four previously unrecognised alligatoroids, are described from the Lower MioceneCastillo Formation (Venezuela) by Solórzano et al. (2019).[55]
A taxonomic and phylogenetic revision of Necrosuchus ionensis is published online by Cidade, Fortier & Hsiou (2019).[56]
Ten late Miocene specimens of Mourasuchus, tentatively assigned to the species M. arendsi, are described from Bolivia and from the Solimões Formation of Brazil by Cidade et al. (2019), who also discuss the morphology of Mourasuchus and paleogeographic distribution of this genus in the Miocene of South America.[57]
A study on the anatomy of the holotype of Mourasuchus amazonensis and on the taxonomic status of species belonging to the genus Mourasuchus is published by Cidade et al. (2019).[58]
A study on the feeding habits of Mourasuchus is published by Cidade, Riff & Hsiou (2019).[59]
A study on the structure of the vertebral column of Purussaurus mirandai, providing evidence of a deviation from the vertebral count present in all extant crocodilians, is published by Scheyer et al. (2019).[60]
Fossils of a specimen of Asiatosuchus depressifrons from the late Paleocene of Mont de Berru (France), representing the oldest European crocodyloid remains reported so far, are described by Delfino et al. (2019).[62]
A study on geographical origin, historical biogeography and evolution of traits aiding dispersal of members of the genus Crocodylus is published by Nicolaï & Matzke (2019).[63]
Skull and mandibular elements of a tomistomine (probably belonging to the genus Maomingosuchus) are described from the late Eocenelignite seams of Krabi (Thailand) by Martin et al. (2019), providing evidence of tomistomines living in the tropics in the late Eocene.[65]
A revision of members of the genus Gavialis described on the basis of fossils from the Sivalik Hills of India and Pakistan is published by Martin (2019).[66]
A study on the systematics of crocodilians known from the Oligocene fossil locality of Monteviale (Italy) is published by Macaluso et al. (2019).[67]
A revision of fossil record of Cenozoic crocodilians from Sardinia (Italy) is published by Zoboli et al. (2019).[68]
A review of the fossil crocodylomorph fauna of the Cenozoic of South America is published by Cidade, Fortier & Hsiou (2019).[69]
A method for the quantification of size- and shape-heterodonty in members of Crocodylia is presented by D'Amore et al. (2019), who apply their method to extant and fossil crocodylomorphs.[70]
A study on the global diversification dynamics of crocodylians since the Cretaceous is published online by Solórzano et al. (2019).[71]
A study testing whether the bone ornamentation may play a role in terms of load-bearing capacity and mechanical strength of pseudosuchian osteoderms, based on data from five osteoderms of crocodylomorphs (representing four species: Caiman crocodilus, Osteolaemus tetraspis, Hyposaurus rogersii, Sarcosuchus imperator) and one aetosaur osteoderm (Aetosaurus sp.), is published by Clarac et al. (2019).[72]
A study on the utility of head width as a body size proxy in extant crocodylians, and on its implications for estimates of body size of extinct crocodyliforms, is published by O'Brien et al. (2019).[73]
A study comparing skull anatomy and inferred head musculature, stress distribution in skulls and feeding mechanisms in members of the genera Pelagosaurus and Gavialis, and evaluating changes in mandibular function and feeding through time in the macroevolution of Crocodylomorpha, is published by Ballell et al. (2019).[74]
Description of fossils of longirostrine crocodylians from the Bartonian of southern Morocco is published by Jouve, Khalloufi & Zouhri (2019), who also discuss the implications of these fossils for the knowledge of the evolution of crocodylians through the Eocene–Oligocene transition.[75]
A study on the diversity of Late Jurassic crocodylomorph teeth from Valmitão (Lourinhã Formation, Portugal), and on the ecological niches and feeding behaviours of crocodylomorphs from this assemblage, is published online by Guillaume et al. (2019).[76]
Description of an isolated crocodyliform tooth from the upper Eocene Ergilin Dzo Formation (Mongolia) and a study on the implications of this fossil for the knowledge of the regional paleoclimate of the area of Mongolia during the late Eocene is published by Iijima et al. (2019).[78]
A study on the morphological diversity and phylogenetic affinities of crocodylomorph teeth from the MaastrichtianTremp Formation (north-eastern Spain) is published online by Blanco et al. (2019).[79]
A stegosauridthyreophoran belonging to the subfamily Dacentrurinae. Genus includes new species A. boulahfa. Announced in 2019; the final version of the article naming it was published in 2020.
A hadrosauridornithopod belonging to the subfamily Lambeosaurinae. Genus includes new species A. arcanus. Announced in 2018; the final version of the article naming it was published in 2019.
A hadrosauridornithopod belonging to the subfamily Saurolophinae and the tribe Edmontosaurini. The type species is L. youngi. Announced in 2017; the final version of the article naming it was published in 2019.
A carcharodontosauridtheropod. Genus includes new species L. ascheriae. Announced in 2019; the final version of the article naming it is scheduled to be published in 2020.
A saltasaurinetitanosaur. Genus includes new species Y. lojaensis. Announced in 2019; the final version of the article naming it was published in 2020.
General non-avian dinosaur research
A study aiming to identify the most likely area for the geographic origin of dinosaurs is published by Lee et al. (2019).[128]
A study evaluating the impact of new fossil discoveries and changing phylogenetic hypotheses on biogeographical scenarios for dinosaur origins is published by Marsola et al. (2019).[129]
A study aiming to determine the degree of differences of dinosaur phylogenies inferred from skull and postcranial characters is published online by Li, Ruta & Wills (2019).[130]
A study on the chronostratigraphic position of the uppermost Cretaceous dinosaur localities from south-western Europe, and on their implications for inferring the course of the Maastrichtian dinosaur turnover, is published by Fondevilla et al. (2019).[131]
A study aiming to quantify the habitat of latest Cretaceous North American dinosaurs, based on data from fossil occurrences and climatic and environmental modelling, and evaluating its implications for inferring whether dinosaur diversity was in decline prior to the Cretaceous–Paleogene extinction event, is published by Chiarenza et al. (2019).[132]
A review and evaluation of studies on molecular data from Mesozoic dinosaur fossils is published by Schweitzeret al. (2019).[135]
A study on the nature of putative remains of ancient proteins, blood vessels, and cells preserved with dinosaur fossils, based on data from fossils of Centrosaurus apertus from the Dinosaur Park Formation (Alberta, Canada), is published by Saitta et al. (2019).[136]
A study on the olfactory bulb ratio (the size of the olfactory bulb relative to the cerebral hemisphere) in dinosaurs, and on its implication for inferring olfactory acuity of dinosaurs, is published by Hughes & Finarelli (2019).[137]
A study on vascular correlates in dinosaur skulls, evaluating their implications for the knowledge of thermoregulatory strategies of dinosaurs of different sizes, is published online by Porter & Witmer (2019).[138]
A review of the diversity of the musculature of the skulls of herbivorous dinosaurs is published online by Nabavizadeh (2019).[139]
A study on the evolution of different modes of herbivory in non-avian dinosaurs is published online by Button & Zanno (2019).[140]
A study on the structure of eggshells of eggs produced by Lufengosaurus, Massospondylus and Mussaurus, representing the oldest confirmed amniote eggshells reported so far, is published by Stein et al. (2019).[141]
Dinosaurs eggs assigned to the oofamily Faveoloolithidae are described from the Upper Cretaceous (Coniacian–Santonian) siltstones within the Daeri Andesite of the Wido Volcanics (South Korea) by Kim et al. (2019), who name a new ootaxon Propagoolithus widoensis.[144]
Possible dromaeosaurid eggshells are described from the Upper Cretaceous Wido Volcanics (South Korea) by Choi & Lee (2019), who name a new ootaxon Reticuloolithus acicularis.[145]
A study on the embryonic metabolism of Troodon formosus, Protoceratops andrewsi and Hypacrosaurus stebingeri, and on its implications for the knowledge of the incubation times for dinosaur eggs, is published by Lee (2019).[147]
A new dinosaur nesting site, preserving at least 15 egg clutches probably laid by a non-avian theropod dinosaur, is described from the Upper Cretaceous Javkhlant Formation (Mongolia) by Tanaka et al. (2019), who interpret the finding as evidence of colonial nesting in a non-avian dinosaur.[148]
A study aiming to determine possible shifts from quadrupedality to bipedality during ontogeny in dinosaurs is published online by Chapelle et al. (2019).[149]
A review of evidence of probable responses of dinosaurs to serious injuries is presented by Hearn & Williams (2019).[150]
A study on the phylogenetic placement of Chilesaurus diegosuarezi and its implications for the phylogenetic relationships of major dinosaur groups is published by Müller & Dias-da-Silva (2019).[151]
Saurischian research
Theropod research
A study on specimen completeness in the fossil record of non-avian theropod dinosaurs is published by Cashmore & Butler (2019).[152]
A study on the distribution of discrete dental characters in theropod dinosaurs, and on the taxonomic value of theropod teeth, is published by Hendrickx et al. (2019).[153]
A study aiming to evaluate whether the maximum body size of theropod dinosaurs increased across the Triassic-Jurassic boundary is published online by Griffin & Nesbitt (2019).[154]
A revision of theropod dinosaur fossils from the Late Jurassic to mid-Cretaceous of Southeast Asia is published by Samathi, Chanthasit & Sander (2019).[155]
A study re-assessing the evidence for evolutionary allometric trends in the forelimbs of non-avian theropod dinosaurs is published by Palma Liberona et al. (2019).[157]
Redescription of the holotype specimen of Chindesaurus bryansmalli and a study on the phylogenetic relationships of this species is published by Marsh et al. (2019).[158]
A study on the anatomy of the braincase, the skull endocast and the inner ear of Zupaysaurus rougieri is published by Paulina-Carabajal, Ezcurra & Novas (2019).[160]
A study on range of motion and functions of the forelimbs of Dilophosaurus wetherilli is published by Senter & Sullivan (2019).[161]
A study on the ecology of Ceratosaurus is published by Yun (2019).[164]
A study on the phylogenetic relationships of Afromimus tenerensis is published by Cerroni et al. (2019), who consider this taxon to be more likely an abelisauroid rather than an ornithomimosaur.[165]
Description of isolated neck vertebrae of abelisauroid theropods from the Cretaceous Kem Kem Beds (Morocco) and a study on the phylogenetic affinities of these fossils is published online by Smyth et al. (2019).[166]
Partially preserved ilium of an indeterminate abelisaur theropod is reported from the Upper CretaceousKem Kem Beds (Morocco) by Zitouni et al. (2019);[167] however Smyth et al. (2019) reinterpret this specimen as a fossil of Spinosaurus aegyptiacus,[166] while Samathi (2024) reinterprets this bone as a fossil of a spinosaurine spinosaurid of uncertain generic placement, possibly distinct from S. aegyptiacus.[168]
A study on the anatomy of the brain, braincase and inner ear of Carnotaurus sastrei is published by Cerroni & Paulina-Carabajal (2019).[169]
A study on the phylogenetic affinities of a tooth previously considered to be part of the holotype of Aerosteon riocoloradensis is published online by Hendrickx, Tschopp & Ezcurra (2019), who consider this fossil to be an abelisaurid tooth.[170]
Isolated spinosaurid teeth are described from the Lower Cretaceous of Kut Island (Thailand) by Buffetaut et al. (2019).[172]
New spinosaurid specimens are described from the Kem Kem Beds (Morocco) by Arden et al. (2019), who interpret these specimens as providing evidence of aquatic adaptations in the skulls of spinosaurids, and name a new clade Spinosaurini;[173] the study is subsequently criticized by Hone & Holtz (2019).[174]
New fossil material of juvenile spinosaurids is described from the Kem Kem Beds by Lakin & Longrich (2019).[175]
New theropod fossils, including partial tail vertebra of a member of Megaraptora and an association of tail vertebrae and pelvic elements displaying a combination of characteristics that are present in megaraptorid and carcharodontosaurid theropods, are described from the early Late Cretaceous Griman Creek Formation at Lightning Ridge, New South Wales (Australia) by Brougham, Smith & Bell (2019).[176]
Description of the anatomy of the axial skeleton of Concavenator corcovatus is published by Cuesta, Ortega & Sanz (2019).[178]
A study on the anatomy of the brain and inner ear of Giganotosaurus carolinii is published online by Paulina-Carabajal & Nieto (2019).[179]
A study on the anatomy of Murusraptor barrosaensis, and on its implications for inferring the phylogenetic placement of megaraptorans within Theropoda, is published by Rolando, Novas & Agnolín (2019).[180]
A study comparing different methods of assessing morphological diversity of coelurosaurianmandibles is published online by Schaeffer et al. (2019).[182]
A study on the anatomy of the skull of Bicentenaria argentina is published online by Aranciaga-Rolando, Cerroni & Novas (2019).[183]
New postcranial bones of Kileskus aristotocus, providing new information on the anatomy of this species, are described from the Middle Jurassic (Itat Formation) Itat Formation (Russia) by Averianov et al. (2019).[184]
A study on the agility and turning capability of tyrannosaurids and other large theropods is published by Snively et al. (2019), who argue that tyrannosaurids could turn with greater agility, thus pivoting more quickly, than other large theropods, which enhanced their ability to pursue and subdue prey.[185]
A study on the taxonomic identity of the juvenile tyrannosaurid specimen TMP 1994.143.1, formerly assigned to the genus Daspletosaurus, is published by Voris et al., who reinterpret this specimen as belonging to the species Gorgosaurus libratus, and describe a new postorbital from the Dinosaur Park Formation (Alberta, Canada) belonging to a small juvenile Daspletosaurus.[187]
A study on the tooth replacement patterns in tyrannosaurid theropods, as indicated by data from a juvenile specimen of Tarbosaurus bataar, is published by Hanai & Tsuihiji (2019).[188]
A study on teeth of Tarbosaurus bataar and its potential prey species from the Nemegt Formation (Mongolia), aiming to infer the diet of this dinosaur and seasonal climatic variations in the area of Mongolia in the early Maastrichtian on the basis of stable isotope data from tooth enamel, is published online by Owocki et al. (2019).[189]
A study on the complexity and modularity of the skull of Tyrannosaurus rex is published by Werneburg et al. (2019).[190]
A large specimen of Tyrannosaurus rex (RSM P2523.8) with an estimated body mass exceeding other known T. rex specimens and representatives of all other gigantic terrestrial theropods is described by Persons, Currie & Erickson (2019).[192]
A study testing the biomechanical performance of the skull of Tyrannosaurus rex is published online by Cost et al. (2019).[193]
A study aiming to determine the processes contributing to the preservation of soft tissue structures and proteins of Tyrannosaurus rex is published by Boatman et al. (2019).[195]
Description of an ornithomimid specimen UALVP 16182, putatively assigned to the genus Dromiceiomimus, and a study on the validity of this genus is published by Macdonald & Currie (2019).[197]
A study on the anatomy of the skull of Beipiaosaurus inexpectus is published by Liao & Xu (2019).[200]
A study on form, function and evolution of skulls of members of Oviraptorosauria is published online by Ma et al. (2019).[201]
A study on the wing performance of Caudipteryx is published by Talori et al. (2019).[202]
A study on the aerodynamic capacity of feathered forelimbs of Caudipteryx is published by Talori & Zhao (2019).[203]
Description of an avimimid bonebed assemblage from the Iren Dabasu Formation of northern China, providing new information on the growth of avimimids, is published by Funston et al. (2019).[204]
A reconstruction of the architecture of the oviraptorid egg clutch, based on data from five clutches from the Upper Cretaceous Nanxiong Group (Jiangxi, China) is presented by Yang et al. (2019), who re-evaluate the hypothesis of thermoregulatory contact incubation of eggs as an explanation for the discoveries of associations of adult oviraptorosaurs with egg clutches.[206]
A study on the reproductive biology of oviraptorids, based on data from a partial clutch of eggs from the Upper Cretaceous Nanxiong Group, is published online by Yang et al. (2019).[207]
A study on the function of the enlarged "sickle claw" on the second toe of dromaeosaurid theropods is published by Bishop (2019).[208]
A study on the anatomy, taphonomy, environmental setting and phylogenetic position of Halszkaraptor escuilliei is published by Brownstein (2019);[210] the study is subsequently criticized by Cau (2020).[211]
A study on a fossil lizard found in the abdomen of a specimen of Microraptor zhaoianus from the Lower Cretaceous Jiufotang Formation (China), evaluating its implications for the knowledge of dromaeosaurid digestion, is published by O'Connor et al. (2019).[212]
A study aiming to explain high diversity of early evolutionary branches of sauropodomorph dinosaurs is published online by Müller & Garcia (2019).[218]
A study on the anatomy and phylogenetic relationships of Pampadromaeus barberenai is published by Langer et al. (2019).[219]
A dinosauriformfemur, possibly of a juvenile specimen of the species Pampadromaeus barberenai, is described from the Late Triassic of southern Brazil by Müller et al. (2019).[220]
A study on the anatomy of the braincase of Saturnalia tupiniquim is published by Bronzati, Langer & Rauhut (2019).[221]
Description of all available skull bones of Saturnalia tupiniquim except the braincase, evaluating the implications of this taxon for the knowledge of the early evolution of the sauropodomorph feeding behaviour, is published by Bronzati, Müller & Langer (2019).[222]
A study on the phylogenetic relationships of Unaysaurus tolentinoi is published online by McPhee et al. (2019).[223]
A study on the anatomy of the skull of Macrocollum itaquii and on the phylogenetic relationships of this species is published online by Müller (2019).[224]
A study on the bony labyrinth scale and geometry through ontogeny in Massospondylus carinatus, evaluating whether the putative gait change from quadrupedal juvenile to bipedal adult is reflected in labyrinth morphology, will be published by Neenan et al. (2019).[225]
Description of the anatomy of the postcranial skeleton of the neotype specimen of Massospondylus carinatus is published by Barrett et al. (2019).[226]
Redescription of the anatomy of the skull of Jingshanosaurus xinwaensis is published online by Zhang et al. (2019), who consider Chuxiongosaurus lufengensis to be a junior synonym of J. xinwaensis.[227]
A study on changes of body mass and center of mass of Mussaurus patagonicus during its ontogeny, and on their potential relationship with the locomotor stance of this dinosaur, is published by Otero et al. (2019).[229]
A study on the leverage of forelimb muscles in the transition from the narrow-gauge stance of basal sauropods to a wide-gauge stance in titanosaurs is published by Klinkhamer et al. (2019).[230]
A study on the hind foot posture and biomechanical capabilities of Rhoetosaurus brownei is published by Jannel et al. (2019).[231]
A study on the age of the fossils of Rhoetosaurus brownei is published by Todd et al. (2019).[232]
A study on the age of the fossils of members of the genus Mamenchisaurus from the Suining Formation in the Sichuan Basin (China) is published by Wang et al. (2019).[236]
A study on the anatomy and affinities of Lapparentosaurus madagascariensis is published by Raveloson, Clark & Rasoamiaramana (2019).[237]
Description of isolated sauropod vertebrae from the Oxford Clay Formation (United Kingdom), indicative of a higher sauropod biodiversity in this formation than previously recognised, is published by Holwerda, Evans & Liston (2019).[240]
Revision of the taxonomic diversity of sauropod dinosaurs from a historic Carnegie Museum locality (Red Fork of the Powder River Quarry B) in northern Wyoming (Morrison Formation) is published by Tschopp et al. (2019).[241]
A study on pneumatic structures in the vertebrae of Pilmatueia faundezi is published online by Windholz, Coria & Zurriaguz (2019).[242]
A study on the anatomy of the appendicular skeleton of Europasaurus holgeri and on the phylogenetic relationships of this species is published online by Carballido et al. (2019).[243]
Redescription of brachiosaurid fossil material from the Upper Jurassic Morrison Formation (Colorado, United States), including a mostly complete skull discovered in 1883, is published online by D'Emic & Carrano (2019).[244]
A study on the phylogenetic relationships of Galvesaurus herreroi is published by Pérez-Pueyo et al. (2019).[245]
The first confirmed fossil of a sauropod dinosaur from Ethiopia (an isolated tooth) is reported from the Upper Jurassic Mugher Mudstone by Goodwin et al. (2019).[246]
A study on the affinities of the sauropod dinosaur known from an isolated metacarpal from the Upper Jurassic (Oxfordian) Jagua Formation (Cuba) is published online by Apesteguía, Izquierdo & Iturralde-Vinent (2019).[247]
A study on isolated sauropod teeth from the Early Cretaceous Teete locality (Batylykh Formation) (Yakutia, Russia), representing the northernmost sauropod record in the Northern Hemisphere reported so far, is published online by Averianov et al. (2019).[248]
Redescription of Jiangshanosaurus lixianensis, a study on the anatomy of Dongyangosaurus sinensis and a study on the phylogenetic relationships of these species is published by Mannion et al. (2019).[249]
A study on the long bone histology in early juvenile titanosaur sauropods, evaluating its implications for the knowledge of early stages of development of these dinosaurs, is published online by González et al. (2019).[251]
A study on the neurology and phylogenetic affinities of a titanosaurian braincase from the Campanian locality of Fox-Amphoux-Métisson (southeastern France) is published by Knoll et al. (2019).[252]
A study on the anatomy of the appendicular skeleton of South American titanosaur sauropods and on its implications for the knowledge of the phylogenetic relationships of these sauropods is published by González Rigaet al. (2019), who name a new clade Colossosauria.[254]
Description of titanosaur sauropod vertebrae from the Upper Cretaceous Lameta Formation (India) is published by Wilsonet al. (2019).[255]
Description of the anatomy of the braincase of Malawisaurus dixeyi is published by Andrzejewski et al. (2019), who present digital reconstructions of the endocast and inner ear of this species based on CT scanning.[256]
A study on the anatomy and phylogenetic relationships of Uberabatitan ribeiroi is published by Silva et al. (2019).[257]
A study on vertebral pneumaticity in Uberabatitan ribeiroi, indicating that diagenesis can obliterate traces of bone pneumaticity, is published online by Aureliano et al. (2019).[258]
Fossils of a titanosaur sauropod related to Rapetosaurus and the indeterminate Italian titanosaur specimen MSNM V7157 are described from the Algora vertebrate fossil site located in the Cenomanian strata of the Arenas de Utrillas Formation (Spain) by Mocho et al. (2019).[259]
Description of five articulated sauropod dorsal vertebrae from the Upper Cretaceous Nemegt Formation, possibly belonging to the species Nemegtosaurus mongoliensis, is published by Averianov & Lopatin (2019), who also study the anatomy of sauropod femora from the Nemegt Formation, and argue that N. mongoliensis is likely to be distinct from Opisthocoelicaudia skarzynskii.[260]
Studies on the anatomy of the skull and postcranial skeleton of Scelidosaurus harrisonii are published online by Norman (2019).[263][264]
A study on the holotype specimen of Bienosaurus lufengensis, and on the taxonomic validity and phylogenetic relationships of this dinosaur, is published by Raven et al. (2019).[265]
A study on the morphological diversity of stegosaurs through the evolutionary history of the group is published by Romano (2019).[266]
Two new stegosaurian specimens from the northernmost outcrops of the Morrison Formation in Montana, one of which is the northernmost occurrence of a dinosaur from the Morrison Formation reported so far, are described by Woodruff, Trexler & Maidment (2019).[267]
Description of a new specimen of Miragaia longicollum and a study on the taxonomic validity and phylogenetic relationships of this species is published by Costa & Mateus (2019), who transfer the species Alcovasaurus longispinus to the genus Miragaia.[268]
Description of an assemblage of 12 partial, articulated or associated ankylosaurian skeletons and thousands of isolated bones and teeth from the Cretaceous (Santonian) Iharkút vertebrate locality (Hungary) will be published by Ősi et al. (2019).[270]
A study on the evolution of morphological traits associated with tail weaponry in ankylosaurs and glyptodonts, aiming to quantitatively test the hypothesis that tail weaponry of these groups is an example of convergent evolution, is published online by Arbour & Zanno (2019).[271]
Description of three new skull specimens of Talarurus plicatospineus from the Upper Cretaceous (Cenomanian–Santonian) Bayan Shireh Formation (Mongolia), and a study on the phylogenetic relationships of this species, is published online by Park et al. (2019).[273]
A study on the brain morphology and topography of cranial nerves of Bissektipelta archibaldi is published by Alifanov & Saveliev (2019).[275]
A study on the bone histology of the holotype specimen of Antarctopelta oliveroi and on its implication for the knowledge of paleobiology of this species is published by Cerda et al. (2019).[276]
Cerapod research
A study on the age of the Kulinda locality (south-eastern Siberia, Russia) which yielded fossils of Kulindadromeus zabaikalicus is published by Cincotta et al. (2019).[277]
First photogrammetric models of the type locality burrow of Oryctodromeus cubicularis are presented by Wilson & Varricchio (2019).[278]
A study on the taphonomy of fossils of Oryctodromeus cubicularis is published by Krumenacker et al. (2019), who also report discovery of new burrows of this dinosaur.[279]
New fossil material of ornithopod dinosaurs is described from the Cretaceous Flat Rocks locality (Wonthaggi Formation, Australia) by Herne et al. (2019), who also revise Qantassaurus intrepidus and study the phylogenetic relationships of the Victorian ornithopods.[90]
Two minuscule ornithopod femora, likely belonging to individuals around the point of hatching, are described from the CenomanianGriman Creek Formation (Australia) by Kitchener et al. (2019).[280]
Description of new fossil material of large ornithopod dinosaurs from the Lower Cretaceous localities in El Castellar (Maestrazgo Basin, Teruel, Spain), and a study on the implications of these fossils for the knowledge of ornithopod diversity in the Lower Cretaceous of the Iberian Peninsula, is published by Verdú et al. (2019).[281]
Description of the anatomy of the skeleton of Talenkauen santacrucensis is published by Rozadilla, Agnolín & Novas (2019).[282]
A study on the anatomy of the skeleton of Macrogryphosaurus gondwanicus is published online by Rozadilla, Cruzado-Caballero & Calvo (2019).[283]
A study on the anatomy and phylogenetic relationships of the ornithopod dinosaurs from the Maastrichtian of Crimea, including Riabininohadros weberae, is published by Averianov & Lopatin (2019).[285]
Redescription of the fossil material of Orthomerus dolloi and a study on the phylogenetic affinities of this taxon is published online by Madzia, Jagt & Mulder (2019).[286]
A study on patterns and processes of morphological evolution of hadrosauroid dinosaurs is published by Stubbs et al. (2019).[287]
A study on the nature of the fluvial systems of Laramidia during the Late Cretaceous, as indicated by data from vertebrate and invertebrate fossils from the Kaiparowits Formation of southern Utah, and on the behavior of hadrosaurid dinosaurs over these landscapes, will be published by Crystal et al. (2019).[288]
Evidence of three-dimensional preservation of eumelanin-bearing bodies, dermal cells and blood vessel fragments in a hadrosaur specimen YPMPU 016969 is presented by Fabbri et al. (2019).[289]
A study on the osteology and phylogenetic relationships of "Tanius laiyangensis" is published online by Zhang et al. (2019).[290]
A study on the bone histology of tibiae of Maiasaura peeblesorum, focusing on the composition, frequency and cortical extent of localized vascular changes, is published by Woodward (2019).[291]
A study on hadrosaurine skulls from the Dinosaur Park Formation (Alberta, Canada), aiming to assess the influence of ontogeny on skull morphology, and evaluating proposed synonymy between Gryposaurus incurvimanus and G. notabilis, is published online by Lowi-Merri & Evans (2019).[292]
A study on the structure and contents of a large piece of amber attached to a jaw of a specimen of Prosaurolophus maximus from the Cretaceous Dinosaur Park Formation (Alberta, Canada), evaluating the implications of this finding for the knowledge of the habitat and taphonomy of the dinosaur, is published by McKellar et al. (2019).[294]
A femur of an early juvenile hadrosaurid, probably belonging to the species Edmontosaurus annectens, is described from the Hell Creek Formation (Montana, United States) by Farke & Yip (2019), providing new information on ontogenetic changes in the skeleton of this dinosaur.[296]
Skull remains of nestling-sized hadrosaurids, probably belonging to the species Edmontosaurus annectens, are described from the Hell Creek Formation (Montana, United States) by Wosik, Goodwin & Evans (2019).[297]
A study of three-dimensionally preserved squamous skin of a member of the genus Edmontosaurus from the Upper Cretaceous (Campanian) Wapiti Formation (Alberta, Canada) is published by Barbi et al. (2019).[298]
Fossils of a lambeosaurine related to the Eurasian Tsintaosaurini are described from the lower Maastrichtian of the Els Nerets locality (eastern Tremp Syncline, northeastern Spain) by Conti et al. (2019).[300]
A study on the microwear of hadrosaur teeth from the La Parrita locality (Cerro del Pueblo Formation, Mexico) and on its implications for the knowledge of jaw mechanics and feeding ecology of these hadrosaurs is published by Rivera-Sylva et al. (2019).[301]
A study on the morphological changes in the braincase of Psittacosaurus lujiatunensis through its ontogeny, based on data from three specimens from the Lower Cretaceous Yixian Formation (China), is published by Bullar et al. (2019).[303]
A three-dimensional virtual endocast of a member of the genus Auroraceratops is reconstructed on the basis of a well-preserved skull by Zhang et al. (2019).[304]
Studies on the preservation of fossils of Auroraceratops rugosus, on their stratigraphic provenance, and on the anatomy and phylogenetic relationships of this species are published by Suarez et al. (2019),[305] Suarez et al. (2019),[306] Morschhauser et al. (2019),[307] Li et al. (2019),[308] Morschhauser et al. (2019)[309] and Morschhauser et al. (2019).[310]
A study on the nature of the observed variation in morphology and size of skulls of Bagaceratops rozhdestvenskyi is published online by Czepiński (2019), who considers the species Gobiceratops minutus, Lamaceratops tereschenkoi, Platyceratops tatarinovi and Magnirostris dodsoni to be junior synonyms of B. rozhdestvenskyi.[311]
The first postcranial skeleton of Bagaceratops reported so far is described from the Upper Cretaceous Barun Goyot Formation (Mongolia) by Kim, Yun & Lee (2019).[312]
A study on the anatomy of the appendicular skeleton of Protoceratops andrewsi and on its implications for the knowledge of the locomotor abilities of this species throughout its ontogeny is published by Słowiak, Tereshchenko & Fostowicz-Frelik (2019).[313]
New information on the anatomy of the skeleton of Pachyrhinosaurus perotorum is presented by Tykoski, Fiorillo & Chiba (2019), who also provide a new diagnosis of this species.[315]
A study on the morphological variation of the skulls of specimens of Styracosaurus albertensis is published online by Holmes et al. (2019).[316]
A study on the affinities of two chasmosaurine skulls from the Dinosaur Park Formation (Alberta, Canada), previously referred to the species Chasmosaurus belli, is published by Campbell et al. (2019), who transfer the species Vagaceratops irvinensis to the genus Chasmosaurus, and consider the two studied skulls to be fossils of members of the genus Chasmosaurus of uncertain specific assignment, with morphology intermediate between C. belli and C. irvinensis.[317]
A study on the taxonomic status of Teyuwasu barberenai, in which it was proposed as a second specimen of the herrerasauridStaurikosaurus pricei rather than a separate genus and species, is published by Garcia, Müller & Dias-da-Silva (2019).[319]
A bird of uncertain phylogenetic placement, possibly a member of Ornithuromorpha belonging to the group Ornithurae. The type species is A. capelambensis. Announced in 2019; the final version of the article naming it was published in 2020.
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