Clark Hill (Permian of the United States)

Where: Monroe County, Ohio (39.7° N, 80.9° W: paleocoordinates 3.6° S, 15.4° W)

• coordinate based on political unit

When: Niniveh Limestone Member (Greene Formation), Sakmarian (293.5 - 290.1 Ma)

• Note: The age of the Greene Fm., wich is not well constrained, here is based on correlation chart (fig. 4) in Wellstead (1991, Bull. AMNH 209).

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: R. R. Reisz. 1986. Pelycosauria. Handbuch der Paläoherpetologie / Encyclopedia of Paleoherpetology 17A:1-102 [J. Mueller/J. Dummasch/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 80877: authorized by Johannes Mueller, entered by Jana Dummasch on 19.05.2008, edited by Emma Dunne

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Synapsida - Sphenacodontidae
Ctenospondylus ninevehensis Berman 1978 synapsid
 Cotylosauria - Diadectidae
Ambedus pusilus n. gen. n. sp.
Ambedus pusilus n. gen. n. sp. Kissel and Reisz 2004 tetrapod
MCZ 9436 (Holotype: a nearly complete right maxilla) and MCZ 9437-41 (dentary and maxillae). Six specimens in total.