STL Science Center

STL Science Center

17 June 2017

Lesser Sauropodomorphs

Efraasia minor (von Huene, 1907–1908) was a gracile middle-sized sauropodomorph of the Late Triassic of Germany. The name was not actually coined by von Huene, despite the fact that he originally described the fossil remains. The name von Huene gave the remains was Teratosaurus minor; this genus is a group of rauisuchians, which Efraasia was deemed to not be a member of. The name we use was coined by Peter Galton in 1973 when he reassigned a number of specimens to the new genus named after the collector of the specimens, Eberhard Fraas. Estimated at approximately 6 to 7m (20 to 23ft), Efraasia is a respectable size for its time and place, but, as we can see, it appears to have been a rather generic looking early dinosaur; however, it is a generic dinosaur that stands out for a number of reasons that we will discuss this week.

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