Where: St. Petersburg, Russian Federation (59.9° N, 31.6° E)
• Paleocoordinates: 30.3° S, 58.8° W (Wright 2013)
• coordinate stated in text
• outcrop-level geographic resolution
When: Asaphus expansus trilobite zone, Nikolskoe Member (Sillaoru Formation), Kunda (469.2 - 464.3 Ma)
• ~ 10 cm below top of zone.
• 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 191354: authorized by Björn Kröger, entered by Björn Kröger on 23.01.2018, edited by Pete Wagner
Creative Commons license: CC0 (CC0)
Taxonomic list
| Rhynchonellata | |
|
Syntrophiidina indet. Ulrich and Cooper 1936 | |
|
Porambonites costata Pander 1830 | |
|
Lycophoria sp. Lahusen 1885 | |
|
Glossorthis sp. Öpik 1930 | |
| Strophomenata | |
|
Ingria sp. Öpik 1930 | |
|
Ukoa ornata Öpik 1932 | |
|
Hemipronites imbricata Opik 1934 | |
|
Gonambonites sp. Pander 1830 | |
|
Antigonambonites planus Pander 1830 | |