Taas-Aryy Island (Osipa Formation (3 m)) (Triassic of Russian Federation)

Where: Russian Federation (71.8° N, 127.2° E: paleocoordinates 72.0° N, 0.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Stolleyites tenuis ammonoid zone, Osipa Formation, Carnian (237.0 - 228.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, gray mudstone and lithified, fine-grained siltstone

• Dark-gray mudstones; in the interval 4–9 m from

•the base of the bed, they irregularly alternate with fine-

•grained siltstones.

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 124566: authorized by Martin Aberhan, entered by Daniel Wellmanns on 18.02.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Carditida - Cardiniidae
Cardinia borealis
 Ostreida - Halobiidae
"Zittelihalobia cf. zhilnensis" = Halobia (Zittelihalobia)
"Zittelihalobia cf. zhilnensis" = Halobia (Zittelihalobia) oyster
 Pectinida - Pectinoidae
Janopecten sp.
Janopecten sp. Arkhipov and Trushchelev 1980 scallop
Nodosariata
 Nodosariida - Nodosariidae
Nodosaria sp.
Nodosaria sp. Lamarck 1812