Locality 8, Layer 21. Lena, Achchagyy-Kyyry-Taas Cr. (Cambrian of Russian Federation)

Also known as Achchagyi-Kyyry-Taas section. Gastropoda of Siberia.

Where: Yakutia, Russian Federation (61.1° N, 126.7° E: paleocoordinates 9.3° S, 13.0° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Bergeroniellus micmacciformis- Erbiella trilobite zone, 3 Member (Perekhodnaya Formation), Botomian (516.0 - 512.9 Ma)

• Botomian; Bergeroniellus micmaciformis - Erbiella zone, Layer 21.

•Formation name from Rozanov et al. 2008.

•Also called Perekhod Formation

• bed-level stratigraphic resolution

Environment/lithology: marine; limestone and claystone

Size class: mesofossils

Primary reference: E. A. Zhegallo. 1983. Yarusnoye rasuchleneniye nizhnego kembriya Sibiri, Atlas Okamenelostey, Glava Klass Gastropoda. Lower Cambrian stage subdivision of the Siberia, Atlas of Fossils, Chapter Gastropoda. Trudy Instituta Geologii i Geofiziki (Novosibirsk) 558:96-100 [M. Aberhan/S. Nurnberg/O. Alfaro]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 45855: authorized by Martin Aberhan, entered by Sabine Nürnberg on 10.12.2004, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Brachiopoda
  -
Oymurania gravestocki Kouchinsky et al. 2015
Helcionelloida
 Helcionellida - Pelagiellidae
Pelagiella lorenzi Kobayashi 1939
 Helcionellida - Yochelcionellidae
Yochelcionella stylifera Missarzhevsky and Mambetov 1981
  - Helcionellidae
Ilsanella atdabanica Rozanov and Missarzhevsky 1966