Riojasauridae

Riojasaurids
Temporal range: Late Triassic, 228–213 Ma
Riojasaurus skull cast
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: †Sauropodomorpha
Clade: †Massopoda
Clade: †Riojasauridae
Yates, 2007
Genera

Riojasauridae is an extinct family of sauropodomorph dinosaurs from the Late Triassic Period (late Carnian to Norian Ages). It contains the genera Riojasaurus and Eucnemesaurus. The Riojasauridae is considered a stem taxon, and is defined as "the most inclusive clade containing Riojasaurus incertus but not Plateosaurus engelhardti, Massospondylus carinatus, or Anchisaurus polyzelus".[1] Geologic formations containing riojasaurid fossils include the Lower Elliot Formation of Orange Free State, South Africa (where fossils of Eucnemesaurus have been found), and the Los Colorados Formation, in La Rioja Province, Argentina (where fossils of Riojasaurus have been recovered).[1]

  1. ^ a b Cite error: The named reference Yates2007 was invoked but never defined (see the help page).