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, Kendei Member (Ulakhan-Krest Formation), Anisian (247.2 - 242.0 Ma)
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified, coarse-grained, concretionary, gray, green siltstone
•with abundant small (1–4 cm) spherical calcareous concre-
•tions. At 4 and 7 m from the base, there are interbeds of
•large (0.5–1 m) loaf-like calcareous 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 124675: authorized by Martin Aberhan, entered by Daniel Wellmanns on 21.02.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
| Bivalvia | |
|
Meleagrinella polaris Kittl 1907 scallop | |
|
Cardinioides fidus Kurushin 1990 clam | |
|
Janaija praelonga Kiparisova 1937 clam | |