Eucnemesaurus

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Eucnemesaurus Temporal range: Late Triassic, 228 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Pes of E. entaxonis
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	Saurischia
Clade:	†Sauropodomorpha
Clade:	†Riojasauridae
Genus:	†Eucnemesaurus Hoepen, 1920
Species
†E. fortis Hoepen, 1920 †E. entaxonis McPhee et al., 2015
Synonyms
Aliwalia rex Galton, 1985

Eucnemesaurus (/juːkˌniːmɪˈsɔːrəs/; meaning "good tibia lizard", for its robust tibiae) is a basal sauropodomorph dinosaur genus usually considered to be a synonym of Euskelosaurus. Recent study by Yates (2006), however, indicates that it is valid and the same animal as putative "giant herrerasaurid" Aliwalia.

Eucnemesaurus was named in 1920 by Egbert Cornelis Nicolaas van Hoepen. The type species is Eucnemesaurus fortis. The specific name means "strong" in Latin. It is based on holotype TrM 119, a partial skeleton including vertebrae, part of a pubis, a femur, and two tibiae. The remains were found by Van Hoepen in the late Carnian-early Norian-age Upper Triassic Lower Elliot Formation of the Slabberts district, Orange Free State, South Africa. Yates assigned the genus to the new family Riojasauridae, with Riojasaurus, usually regarded as a melanorosaurid.