Spondylosoma
| Spondylosoma Temporal range: Middle Triassic,
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|---|---|
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| Skeletal restoration showing known material, with a mostly hypothetical outline | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Archosauria |
| Clade: | Avemetatarsalia |
| Clade: | †Aphanosauria |
| Genus: | †Spondylosoma |
| Type species | |
| †Spondylosoma absconditum von Huene, 1942
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Spondylosoma (meaning "vertebra body") is a genus of avemetatarsalian archosaur belonging to the clade Aphanosauria from the late Ladinian-age Middle Triassic Lower Santa Maria Formation in Paleorrota Geopark, Brazil.
History
prosauropod.[1]
With the discovery of the basal dinosaur Ornithodira.[4]
The redescription of Teleocrater[5] revealed numerous similarities between Spondylosoma and a few other Triassic taxa leading to their referral to a new clade of archosaurs, Aphanosauria, which is the sister to Ornithodira within Avemetatarsalia.
References
- ^ von Huene, F. (1942). Die fossilen Reptilien des südamerikanischen Gondwanalandes. C.H. Beck:Munich, 342 p. [German]
- ^ Galton, P.M. (2000). Are Spondylosoma and Staurikosaurus (Santa Maria Formation, Middle-Upper Triassic, Brasil) the oldest saurischian dinosaurs? Paläontologische Zeitschrift 74(3):393-423.
- ISBN 0-520-24209-2
- ^ Sterling J. Nesbitt (2009). "The early evolution of archosaurs: Relationships and the origin of major clades". Columbia University (open access dissertation): 1–632.