Sarahsaurusとは 意味・読み方・使い方

Sarahsaurus is a genus of basal sauropodomorph dinosaur which existed in what is now northeastern Arizona, USA during the lower Jurassic period. Fossils have been found from the Early Jurassic Kayenta Formation near Gold Spring, Arizona, which is Sinemurian to Pliensbachian in age. It was first described by Timothy B. Rowe, Hans-Dieter Sues and Robert R. Reisz in 2011 and the type species is Sarahsaurus aurifontanalis. The generic name honours Sarah (Mrs Ernest) Butler, and sauros (Greek), for "lizard". The specific name is derived from aurum (Latin), "gold", and fontanalis (Latin), "of the spring" in reference to Gold Spring, Arizona, where the holotype was found. Sarahsaurus is the third basal sauropodomorph dinosaur to have been identified in North America. It is thought to have appeared through a dispersal event that originated in South America and was separate from those of the other two sauropodomorphs.