A part of the Gaspé Sandstones,[2] the Battery Point Formation is believed to have been deposited in a fluvial environment based on the presence of rootlets as well as the abundance of trough and planar-tabular cross bedding, and the lower part resembles modern braided systems more than meandering systems.[2][3] It rests unconformably on the shallow marine sandstones of the York River Formation (the basal unit of the Gaspé Sandstones and making the Battery Point Formation the first continental unit of the sequence[2]), transitioning upwards into the Malbaie Formation, and is 2,300 meters (7,550 feet) thick.[4]
Fossil content
Limited intervals in the lower part of the formation contain remains of a few brachiopods and bivalves, though marine fauna is not known from other parts of the formation.[1] Plant and freshwater fish fossils are also known, with a large diversity of primitive vascular plants found within the formation.[2]
^Shear, William A.; Gensel, Patricia G.; Jeram, Andrew J. (December 1996). "Fossils of large terrestrial arthropods from the Lower Devonian of Canada". Nature. 384 (6609): 555–557. doi:10.1038/384555a0.
^Hartman, Christine M. (March 1981). "The effect of pyrite on the tracheid structure of Drepanophycus spinaeformis, a long-ranging devonian lycopod". Review of Palaeobotany and Palynology. 32 (2–3): 239–255. doi:10.1016/0034-6667(81)90006-3.
^Pfeiler, Kelly C.; Tomescu, Alexandru M. F. (May 2021). "An Early Devonian actinostelic euphyllophyte with secondary growth from the Emsian of Gaspé (Canada) and the importance of tracheid wall thickening patterns in early euphyllophyte systematics". Papers in Palaeontology. 7 (2): 1081–1095. doi:10.1002/spp2.1335.
^ abcdBickner, Maya A.; Tomescu, Alexandru M. F. (January 2019). "Structurally complex, yet anatomically plesiomorphic: permineralized plants from the Emsian of Gaspé (Quebec, Canada) expand the diversity of Early Devonian euphyllophytes". IAWA Journal. 40 (3): 421–445. doi:10.1163/22941932-40190234.
^Toledo, Selin; Bippus, Alexander C.; Atkinson, Brian A.; Bronson, Allison W.; Tomescu, Alexandru M. F. (October 2021). "Taxon sampling and alternative hypotheses of relationships in the euphyllophyte plexus that gave rise to seed plants: insights from an Early Devonian radiatopsid". New Phytologist. 232 (2): 914–927. doi:10.1111/nph.17511.
^Lalica, Madison A. K.; Tomescu, Alexandru M. F. (July 2023). "Complex wound response mechanisms and phellogen evolution – insights from Early Devonian euphyllophytes". New Phytologist. 239 (1): 388–398. doi:10.1111/nph.18926.
^Chu, Jessica; Durieux, Thibault; Tomescu, Alexandru M. F. (October 2024). "An early cladoxylopsid with complex vascular architecture: Paracladoxylon kespekianum gen. et sp. nov. from the Lower Devonian (Emsian) of Quebec, Canada". American Journal of Botany. 111 (10). doi:10.1002/ajb2.16418.
^Pfeiler, Kelly C.; Tomescu, Alexandru M. F. (October 2023). "Mosaic assembly of regulatory programs for vascular cambial growth: a view from the Early Devonian". New Phytologist. 240 (2): 529–541. doi:10.1111/nph.19146.
^Colston, Courtney M.; Landaw, Kevin; Tomescu, Alexandru M. F. (January 2023). "An early snapshot of plant–herbivore interactions: Psilophyton diakanthon sp. nov. from the Early Devonian of Gaspé (Quebec, Canada)". American Journal of Botany. 110 (1). doi:10.1002/ajb2.16082.