Thecodontosauridae

Thecodontosaurids; Temporal range: Late Triassic,; ~206–201.3 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ Possible survival into the Early Jurassic
	Skeletal restoration of Thecodontosaurus antiquus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Dinosauria
Clade:	Saurischia
Clade:	†Sauropodomorpha
Clade:	†Bagualosauria
Family:	†Thecodontosauridae; Lydekker, 1890
Type species
	†Thecodontosaurus antiquus; Morris, 1843
Genera
	†Agrosaurus; †Thecodontosaurus;

Thecodontosauridae is a family of basal sauropodomorph dinosaurs^[1] that are part of the Bagualosauria,^[2] known from fossil remains found exclusively in the Magnesian Conglomerate of Bristol, England,^[3] which dates back to the Rhaetian stage of the Late Triassic (although it could be as old as the Norian stage of the Late Triassic and as young as the Hettangian stage of the Early Jurassic).^[3] Two genera are known: Agrosaurus^[4] and Thecodontosaurus;^[5] the former is often considered to be the same animal as the latter.^[6]

References

^ M.J. Benton, L. Juul, G.W. Storrs and P.M. Galton, (2000), "Anatomy and systematics of the prosauropod dinosaur Thecodontosaurus antiquus from the upper Triassic of southwest England", Journal of Vertebrate Paleontology 20(1): 77-108
^ Müller, Rodrigo Temp (2019). "Craniomandibular osteology of Macrocollum itaquii (Dinosauria: Sauropodomorpha) from the Late Triassic of southern Brazil". Journal of Systematic Palaeontology. 18 (10): 805–841. Bibcode:2020JSPal..18..805M. doi:10.1080/14772019.2019.1683902. S2CID 209575985.
^ ^a ^b Magnesian Conglomerate in the Paleobiology Database
^ Seeley. H. G. (1891). On Agrosaurus macgillivrayi (Seeley), a saurischian reptile from the N.E. coast of Australia. Quarterly Journal of the Geological Society of London 47:164-165
^ Riley, H., and Stutchbury, S., (1836), "A description of various fossil remains of three distinct saurian animals discovered in the autumn of 1834, in the Magnesian Conglomerate on Durdham Down, near Bristol", Proceedings of the Geological Society of London 2:397–399
^ Weishampel, David B.; Barrett, Paul M.; Coria, Rodolfo A.; Le Loueff, Jean; Xu Xing; Zhao Xijin; Sahni, Ashok; Gomani, Elizabeth M.P.; Noto, Christopher N. (2004). "Dinosaur distribution". In Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (eds.). The Dinosauria (2nd ed.). Berkeley: University of California Press. pp. 517–606. ISBN 978-0-520-24209-8.

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