ammonites
Lena River, Zhurinskii Mys, biohermal facies (Cambrian of Russian Federation)

Also known as Reef 3754

Where: Yakutiya, Russian Federation (60.9° N, 125.8° E: paleocoordinates 13.2° S, 14.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Pestrotsvet Formation, Tommotian (530.0 - 520.0 Ma)

• Dokidocyathus regularis zone, Lapworthella tortuosa subzone

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified limestone

• Mounds are 0.4-0.6 m in length and 0.2-0.3 m high, locally bioherms up to 1 m in lenght.

Size class: macrofossils

Primary reference: P. D. Kruse, A. Y. Zhuravlev, and N. P. James. 1995. Primordial metazoan-calcimicrobial reefs: Tommotian (Early Cambrian) of the Siberian Platform. Palaios 10:291-321 [W. Kiessling/B. Bookhagen/W. Kiessling] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 80808: authorized by Wolfgang Kiessling, entered by Uta Merkel on 13.05.2008