Where: Govi-Altai, Mongolia (46.4° N, 94.1° E: paleocoordinates 46.1° N, 93.9° E)
• coordinate based on political unit
• outcrop-level geographic resolution
When: Gurvan-Eren Formation, Aptian (125.0 - 113.0 Ma)
• Bed 39 is equivalent to bed 4 in outcrop 235 and bed 5 in outcrop 236. Correlated with Bon Tsagaan based on pollen and plants.
Environment/lithology: lacustrine - large; siltstone and calcareous sandstone
Size classes: macrofossils, mesofossils
Preservation: mold/impression
Reposited in the PIN
Primary reference: S. M. Sinitsa. 1986. Ostracoda, in Nasekomye v rannemelovykh ekosistemakh zapadnoy Mongolii. In A. P. Rasnitsyn (ed.), The Joint Soviet-Mongolian Palaeontological Expedition 28:174-178 [M. Clapham/J. Karr/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 136203: authorized by Matthew Clapham, entered by Jered Karr on 22.11.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Gastropoda | |
Bithynia sp. Leach 1818 snail | |
Valvata sp. Müller 1774 snail | |
Bivalvia | |
Limnocyrena sp. Martinson 1961 clam | |
Unio sp. Philipsson 1788 freshwater mussel | |
Insecta | |
Ostracindusia modesta Sukacheva 1982 caddisfly | |
Ostracoda | |
Darwinula contracta Mandelstam 1955 ostracod | |
Cypridea sp. Bosquet 1852 ostracod
Cypridea gurvanensis Sinitsa 1986 ostracod |