Sp

ZIDEK, JOHNSON, MAY & CLABORN, 2004

Locality: OMNH V 173, Northeast Frederic site of Simpson, (1976, 1979), Tillman County, Oklahoma.

Horizon: Garber Sandstone, Upper part of the Sumner Group, possibly equivalent to the Lower Arroyo Formation, Lower Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron lower D.

Age: Middle Leonardian stage, upper Rotliegendes, Early Permian.

Material:

Number: Not given: