Ol`khovyi Creek Exp. K-1 (Ulakhan-Krest Formation 2 ( 2m) (Triassic of Russian Federation)

Where: Russian Federation (71.7° N, 127.8° E: paleocoordinates 65.8° N, 13.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Parapopanoceras asseretoi zone, 1 Member (Ulakhan-Krest Formation), Anisian (247.2 - 242.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary, gray, green mudstone and lithified, gray, green siltstone

• Dark-gray mudstones with rare interbeds of greenish-

•gray siltstone interbeds (0.2–0.45 m thick). The rocks con-

•tain occasional and interbed calcareous and pyrite

•concretions.

Size class: macrofossils

Primary reference: A. G. Konstantinov, E. S. Sobolev, and A. V. Yadrenkin. 2007. Detailed biostratigraphy of Triassic deposits in the Lena lower reaches(northern Yakutia). Russian Geology and Geophysics 48:721-736 [M. Aberhan/D. Wellmanns]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 124643: authorized by Martin Aberhan, entered by Daniel Wellmanns on 20.02.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ceratitida - Ceratitidae
Hollandites sp.
Hollandites sp. Diener 1907 ceratite
 Ceratitida - Longobarditidae
"Epiczekanowskites gastroplanus" = Czekanowskites gastroplanus, Intornites navadanus
"Epiczekanowskites gastroplanus" = Czekanowskites gastroplanus Popov 1961 ceratite
 Ceratitida - Parapopanoceratidae
Parapopanoceras sp.
Parapopanoceras sp. Haug 1894 ceratite
Bivalvia
 Ostreida - Bakevelliidae
Bakevellia (Maizuria) arctica
Bakevellia (Maizuria) arctica Kiparisova 1937 oyster