Riojasauridae

Riojasauridae Temporal range: Late Triassic, 228–213 Ma PreЄ Є O S D C P T J K Pg N
Riojasaurus skull cast
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Order:	Saurischia
Suborder:	†Sauropodomorpha
Clade:	†Massopoda
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 Riojasauridae 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 978-1-4051-6933-2.

External links

• Sauropodomorpha from Thescelosaurus.com