Natural History

Araeoscelis

Araeoscelis (from Greek: αραιά araiá, 'thin' and Greek: σκελίς skelís, 'ribs of beef') is an extinct genus of sauropsid from the Early Permian of what is now Texas. Fossils have been found in the Nocona, Arroyo and Waggoner Ranch Formations. Two species have been described, A. casei and A. gracilis. Araeoscelis belonged to the clade Araeoscelidia together with close relatives such as Petrolacosaurus. Araeoscelidia is often considered one of the most basal groups of sauropsids or as the earliest "diapsid" stem-reptiles, but some analyses have recovered them as stem-amniotes instead.

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See also

• ▸Einar Lönnberg
• ▸Casa Rosada
• ▸Borneo lowland rain forests

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