Oreosaurus gracilis Marsh 1872 (squamates)

Reptilia - Squamata - Anguidae

Full reference: O. C. Marsh. 1872. Preliminary description of new Tertiary reptiles. Part I and Part II. The American Journal of Science, series 3 4(22):298-309

Belongs to Oreosaurus according to O. C. Marsh 1872

See also Hay 1902, Hay 1930 and Meszoely 1970

Sister taxa: Xestops savagei, Xestops vagans, Oreosaurus vagans, Oreosaurus microdus, Oreosaurus minutus, Oreosaurus lentus

Type specimen: USNM 16529, an osteoderm (four keeled, elongated osteoscutes). Its type locality is Henry's Fork, which is in an Eocene terrestrial horizon in the Bridger Formation of Wyoming.

Ecology: ground dwelling insectivore-carnivore

Distribution: found only at Henry's Fork

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