Riojasauridae

Riojasauridae Fossil range: Late Triassic
Scientific classification
Class:	Reptilia
Superorder:	Dinosauria
Order:	Saurischia
Suborder:	Sauropodomorpha
Infraorder:	Prosauropoda
Family:	Riojasauridae
Genera:	Eucnemesaurus Riojasaurus

Riojasauridae is a family of sauropod-like dinosaurs from the Upper Triassic. It is known primarily from the genera Riojasaurus and Eucnemesaurus. Sites containing Riojauridae include the Lower Elliot Formation of Orange Free State, South Africa (where fossils of Eucnemesaurus have been found), and Ischigualasto, in La Rioja Province, Argentina ( where fossils of Riojasaurus have been recovered).

Plateosauria   Plateosauridae  Unaysaurus Plateosaurus  Massopoda  Riojasauridae  Riojasaurus Eucnemesaurus  (unnamed)   Massospondylidae  Massospondylus   (unnamed)  Coloradisaurus  Lufengosaurus   (unnamed)  Jingshanosaurus Anchisauria Basal sauropodomorph phylogeny simplified after Yates, 2007. This is only one of many proposed cladograms for basal sauropodomorphs.

References

• Yates, Adam M. (2007). "The first complete skull of the Triassic dinosaur Melanorosaurus Haughton (Sauropodomorpha: Anchisauria)", in Barrett, Paul M. & Batten, David J., Special Papers in Palaeontology, vol. 77, p. 9–55, ISBN 9781405169332.

External links

• Sauropodomorpha from Thescelosaurus!