Where: St. Petersburg, Russian Federation (59.9° N, 31.6° E: paleocoordinates 35.8° S, 1.4° E)
• coordinate stated in text
• outcrop-level geographic resolution
When: Asaphus expansus trilobite zone, Nikolskoe Member (Sillaoru Formation), Kunda (468.1 - 463.5 Ma)
• ~ 10 cm below Asaphus expansus / Asaphus raniceps boundary.
• bed-level stratigraphic resolution
Environment/lithology: marine; calcareous claystone and ooidal, argillaceous limestone
•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.", 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 191353: authorized by Björn Kröger, entered by Björn Kröger on 23.01.2018, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Strophomenata | |
Ingria sp. Öpik 1930 | |
Inversella sp. Opik 1933
Ukoa ornata Öpik 1932 | |
Hemipronites imbricata Opik 1934 | |
Gonambonites sp. Pander 1830 | |
Rhynchonellata | |
Lycophoria sp. Lahusen 1885 |