Where: Mongolia (48.4° N, 92.3° E: paleocoordinates 47.8° N, 91.3° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Gurvan-Eren Formation, Aptian (125.0 - 113.0 Ma)

Environment/lithology: lacustrine - large; argillaceous mudstone

Size classes: macrofossils, mesofossils

Preservation: adpression

Reposited in the PIN

Primary reference: N. D. Sinitshenkova. 1987. Istopicheskoe razvitie vesiyanok. Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta 221:1-142 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 151560: authorized by Matthew Clapham, entered by Matthew Clapham on 07.10.2013

Creative Commons license: CC BY (attribution)