Ol`khovyi Creek Exp. K-1 (Ulakhan-Krest Formation 14 ( 12 m)) (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: Kendei Member (Ulakhan-Krest Formation), Anisian (247.2 - 242.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, coarse-grained, concretionary, gray, green, calcareous siltstone

• Dark-greenish-gray coarse-grained calcareous silt-

•stones with lumachelle interbeds (10–30 cm) with shells

•of bivalves, scaphopods, and rarer gastropods. In the up-

•per part of the bed, the rocks abound in spherical (1–2

•cm across) and, less often, loaf-like (0.5–0.7 m) calcare-

•ous 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 124672: authorized by Martin Aberhan, entered by Daniel Wellmanns on 20.02.2012, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Carditida - Cardiniidae
Cardinia sp. Agassiz 1841 clam
Cephalopoda
 Phylloceratida - Ussuritidae
Arctophyllites taimyrensis Popov 1961 ammonite
Lingulata
 Lingulida - Lingulidae
Lingularia sp. Biernat and Emig 1993