Putilovo Quarry, Bed 34 A Marl (Ordovician of Russian Federation)

Where: St. Petersburg, Russian Federation (59.9° N, 31.4° E: paleocoordinates 35.9° S, 1.3° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Asaphus raniceps trilobite zone, Lopukhinka Member (Sillaoru Formation), Kunda (468.1 - 463.5 Ma)

Environment/lithology: marine; claystone and ooidal, gray, argillaceous limestone

• "Here the Sillaoru Formation is about 70 cm thick. It consists of calcareous clay with highly argillaceous limestone with numerous iron ooliths. The carbonates are heavily bioturbated, penetrated often by Skolithos burrows together with Trypanites type borings. The overlying Lopukhinka Member is more clay

•rich and about 20 cm thick.", in Rasmussen & Harper (2008)

Size classes: macrofossils, mesofossils

Primary reference: C. M. O. Rasmussen and D. A. T. Harper. 2008. Resolving early Mid-Ordovician (Kundan) bioevents in the East Baltic based on brachiopods. Geobios 41:533-542 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 191339: authorized by Björn Kröger, entered by Björn Kröger on 23.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Billingsellida - Gonambonitidae
Gonambonites sp. Pander 1830
 Strophomenida - Plectambonitidae
Ingria sp. Öpik 1930
Rhynchonellata
 Orthida - Lycophoriidae
Lycophoria sp. Lahusen 1885