Ilmen Lake Buregi Beds (Devonian of Russian Federation)

Where: Russian Federation (58.2° N, 31.1° E: paleocoordinates 6.5° S, 11.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Buregi Formation, Middle Frasnian (382.4 - 379.5 Ma)

• Polygnathus efimovae local conodont zone; punctata - L. hassi standard conodont zone

• formation-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, gray, argillaceous, silty packstone

• Brachiopod-pelmatozoan pack-rudstones with high silt and clay content. Wave-bedding and presence of diverse fossils are characteristic.

Size classes: macrofossils, mesofossils, microfossils

Collection methods: quarrying, chemical, mechanical,

Primary reference: A. V. Zhuravlev. 1999. Conodonts of the Polygnathus pollocki Druce group (Upper Devonian, Lower Frasnian) from the East European Platform. Proceedings of the Estonian Academy of Sciences. Geology. 48(1):35-47 [A. Zhuravlev/A. Zhuravlev/A. Zhuravlev]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 46154: authorized by Andrey Zhuravlev, entered by Andrey Zhuravlev on 06.01.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

 Spiriferida - Cyrtospiriferidae
 Atrypida - Atrypidae
 Ozarkodinida - Polygnathidae
Polygnathus "B" Hinde 1879 conodont
Polygnathus pollocki Druce 1976 conodont
Polygnathus webbi Stauffer 1938 conodont
Polygnathus efimovae Kononova et al. 1996 conodont