Also known as Irdin Manha; 2 miles north of line, Irdin Manha Bench; 23 miles southeast of Iren Dabasu

Where: Inner Mongolia, China (43.3° N, 111.8° E: paleocoordinates 44.8° N, 105.5° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Irdin Manha Formation, Middle Eocene (47.8 - 37.7 Ma)

• Stated in primary reference as Upper Eocene but more recent literature uses Middle Eocene.

• bed-level stratigraphic resolution

Environment/lithology: fluvial; lithified, gray, white, sandy conglomerate

Size classes: macrofossils, mesofossils

Collected by A. F. Johnson, G. Olsen in 1923; reposited in the AMNH

Primary reference: C. W. Gilmore. 1931. Fossil turtles of Mongolia. Bulletin of the American Museum of Natural History 59:213-257 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 178831: authorized by David Nicholson, entered by David Nicholson on 17.05.2016, edited by Philip Mannion and Patricia Holroyd

Creative Commons license: CC BY (attribution)