ammonites
Notophthalmus crassus Tihen 1974 (newt)

Amphibia - Caudata - Salamandridae

Full reference: J. A. Tihen. 1974. Two new North American Miocene salamandrids. Journal of Herpetology 8(3):211-218

Belongs to Notophthalmus according to J. A. Tihen 1974

Sister taxa: Notophthalmus slaughteri, Notophthalmus viridescens

Type specimen: UNSM 61040, a set of vertebrae (intact dorsal vertebra). Its type locality is Flint Hill (Notre Dame locality), which is in a Hemingfordian terrestrial horizon in the Batesland Formation of South Dakota.

Ecology: