Ol`khovyi Creek Exp. K-1 (Ulakhan-Krest Formation 11 ( 8 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: Janaija praelonga other zone, Ulakhan-Krest Formation, Anisian (247.2 - 242.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, fine-grained, concretionary, gray sandstone

• Greenish-gray fine-grained sandstones with inter-

•beds of large (0.5–1 m) spherical and loaf-like calcareous

•concretions, lenses, and lumachelle interbeds (5–15 cm)

•with echinoid spines (only in the lower part of the bed),

•bivalve and scaphopod shells, and wood remains.

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 124665: authorized by Martin Aberhan, entered by Daniel Wellmanns on 20.02.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758 tusk shell
Bivalvia
 Unionida - Pachycardiidae
Cardinioides fidus Kurushin 1990 clam
 Trigoniida - Trigonodidae
Janaija praelonga Kiparisova 1937 clam
 Carditida - Myophoricardiidae
Pseudocorbula pseudogregaria Kurushin 1992 clam
 Nuculanida - Malletiidae
Taimyrodon olenekensis Kiparisova 1937 clam
Lingulata
 Lingulida - Lingulidae