Riojasauridae

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Riojasauridae
Temporal range: Late Triassic, 228–213 Ma
Riojasaurus skull.jpg
Riojasaurus skull cast
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Saurischia
Suborder: Sauropodomorpha
Clade: Massopoda
Family: Riojasauridae
Yates, 2007
Genera

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).

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 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[edit]

  • 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.