Taas-Ary Island, asseretoi subzone, lower Lena River (Triassic of Russian Federation)

Where: Russian Federation (71.8° N, 127.2° E: paleocoordinates 65.6° N, 13.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Gymnotoceras rotelliformis ammonoid zone, Illyrian (247.2 - 242.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collection methods: Repository: TsSGM (Central Siberian Geological Museum in the Institute of Geology, Geography and Mineralogy of the Siberian Branch, Russian Academy of Sciences, Novosibirsk), same as IGiG (Institute for Geology and Geophysics, Novosibirsk)

Primary reference: A. G. Konstantinov. 1991. Biostratigrafiya i ammonoidei verkhnego Aniziya severa Sibiri. Akademiya Nauk SSSR, Sibirskoe Otdelenie Trudy Instituta Geologii I Geofiziki 787:1-136 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 107184: authorized by Matthew Clapham, entered by Matthew Clapham on 02.04.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ceratitida - Longobarditidae
Intornites nevadanus Hyatt and Smith 1905 ceratite
 Ceratitida - Parapopanoceratidae
Parapopanoceras asseretoi Dagys and Ermakova 1981 ceratite