| Thecodontosaurids Temporal range: Late Triassic,
~ | |
|---|---|
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| Skeletal restoration of Thecodontosaurus antiquus | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | †Sauropodomorpha |
| Clade: | †Bagualosauria |
| Family: | †Thecodontosauridae Lydekker, 1890 |
| Type species | |
| †Thecodontosaurus antiquus Morris, 1843
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| Genera | |
Thecodontosauridae is a family of basal sauropodomorph dinosaurs1 that are part of the Bagualosauria,2 known from fossil remains found exclusively in the Magnesian Conglomerate of Bristol, England,3 which has been traditionally considered to date back to the Rhaetian stage of the Late Triassic. However, other studies have challenged this and suggested a much older date extending back to the Carnian (Other publications have suggested alternative dates ranging from the Norian stage of the Late Triassic to as young as the Hettangian stage of the Early Jurassic).34 Two genera are known: Agrosaurus5 and Thecodontosaurus;6 the former is often considered to be the same animal as the latter.7
References
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.
- Magnesian Conglomerate in the Paleobiology Database
- Simms, Michael J.; Drost, Kerstin (2024). "Caves, dinosaurs and the Carnian Pluvial Episode: Recalibrating Britain's Triassic karst 'fissures'". Palaeogeography, Palaeoclimatology, Palaeoecology. 638 112041. Bibcode:2024PPP...63812041S. doi:10.1016/j.palaeo.2024.112041. ISSN 0031-0182.
- 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.