Lava River canjon, Vassilkovo member, O. evae zone (Ordovician of Russian Federation)

Where: Russian Federation (59.9° N, 31.6° E: paleocoordinates 39.9° S, 0.7° W)

• coordinate estimated from map

When: Oepikodus evae conodont zone, Vassilkovo Member (Leetse Formation), Billingen (474.8 - 471.1 Ma)

• member-level stratigraphic resolution

Environment/lithology: glauconitic limestone and glauconitic, calcareous sandstone

Size classes: macrofossils, mesofossils

Primary reference: A. V. Dronov, T. N. Koren, L. E. Popov, T. J. Tolmacheva, and L. E. Holmer. 1995. Uppermost Cambrian and Lower Ordovician in northwestern Russia: sequence stratigraphy, sea level changes and bio-events. In J. D. Cooper, M. L. Droser, S. C. Finney (eds.), Ordovician Odyssey: Short Papers From the Seventh International Symposium on the Ordovician System 319-322 [B. Kröger/B. Kröger/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 198708: authorized by Björn Kröger, entered by Björn Kröger on 09.01.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Corynexochida - Panderiidae
Ottenbyaspis sp. Bruton 1968 trilobite
 Asaphida - Asaphidae
Proasaphus primus Balashova 1966 trilobite
Lingulata
 Acrotretida - Acrotretidae
Acrotreta subconica Kutorga 1848
 Acrotretida - Biernatidae
Biernatia sp. Holmer 1989
Rhynchonellata
 Pentamerida - Porambonitidae
Porambonites sp. Pander 1830
 Orthida - Productorthidae
Panderina tetragona Pander 1830
 Orthida - Lycophoriidae
 Orthida - Paurorthidae
Paurorthis resima Rubel 1961
Strophomenata
 Billingsellida - Polytoechiidae
Antigonambonites excavatus
[Antigonambonites excavarus]
 Strophomenida - Plectambonitidae