Also known as Than-udaw AMNH A8

Where: Myanmar (21.7° N, 94.8° E: paleocoordinates 13.1° N, 93.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pondaung Formation, Bartonian (41.3 - 38.0 Ma)

• The whole sequence of units was originally defined as the ‘Pondaung Sandstones’ by Cotter (1914), but the horizon yielding Eocene vertebrate fossils is now known as the ‘Upper Member’ of the Pondaung Formation (see Maung et al. 2005). The most recent age for this unit is ~39–38 Ma and so it can be regarded as middle Bartonian (see Tsubamoto et al. 2011).

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; brown, yellow sandstone and red, white, yellow siliciclastic

Size class: macrofossils

Reposited in the AMNH

• collected by H. M. Lahiri, specimens housed in the Geological Museum, Calcutta and AMNH

•Colbert's list has both Pondaung and Upper Irrawaddy associated with the fossils he reports, but it's not clear what that means

Primary reference: G. E. Pilgrim and G. P. Cotter. 1916. Some newly discovered Eocene mammals from Burma. Records of the Geological Survey of India 47:42-77 [J. Alroy/E. Leckey/E. Leckey]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 41180: authorized by John Alroy, entered by Erin Leckey on 07.07.2004, edited by Philip Mannion and Bethany Allen

Creative Commons license: CC BY (attribution)