Mogaung 2, Pondaung Sandstone (Eocene of Myanmar)

Also known as Lema Kyitchaung AMNH A14

Where: Myanmar (22.0° N, 94.6° E: paleocoordinates 13.1° N, 92.9° 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

• successive beds of cherry-red, bright buff and cream-white earths interstratified with brown or buff sandstones

Size class: macrofossils

Reposited in the AMNH

Primary reference: E. Colbert. 1938. Fossil mammals from Burma in the American Museum of Natural History. Bulletin of the American Museum of Natural History 74:255-436 [J. Alroy/E. Leckey/E. Leckey]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 41283: authorized by John Alroy, entered by Erin Leckey on 09.07.2004, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Primates - Amphipithecidae
Pondaungia sp.1 Pilgrim 1927 monkey
fragmentary right lower jaw with worn m2-m3
Pondaungia minuta n. sp.1 Jaeger et al. 1999 monkey
fragmentary right lower jaw with m1-m3
 Perissodactyla - Brontotheriidae
Sivatitanops cotteri Pilgrim 1925 brontothere
 Perissodactyla - Amynodontidae
Paramynodon birmanicus odd-toed ungulate
 Artiodactyla -
Anthracothema sp. Pilgrim 1928 even-toed ungulate
 Artiodactyla - Lophiomerycidae
cf. Indomeryx sp.2 Pilgrim 1928 ruminant
MGG 33