Lynna River valley, A. expansus zone (Ordovician of Russian Federation)
Where: St. Petersburg, Russian Federation (60.0° N, 32.6° E: paleocoordinates 35.6° S, 1.9° E)
• coordinate estimated from map
When: Asaphus expansus trilobite zone, Lynna Formation, Kunda (469.2 - 464.3 Ma)
Environment/lithology: marine; nodular, muddy limestone and wackestone
• "This consists of a turbidite-like nodular limestone with thick clay intercalations, lacking glauconite and iron ooliths. The limestones are dominated by mudstones and wackestones. The total thickness of this formation is 2.8 m.", 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 191360: authorized by Björn Kröger, entered by Björn Kröger on 23.01.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Strophomenata | |
|
Gonambonites sp. Pander 1830 | |
|
Hemipronites imbricata Opik 1934 | |
|
Antigonambonites planus Pander 1830 | |
|
Ingria sp. Öpik 1930 | |
|
Inversella sp. Opik 1933 | |
| Rhynchonellata | |
|
Syntrophiidina indet. Ulrich and Cooper 1936 | |
|
Lycophoria sp. Lahusen 1885 | |
|
Orthis callactis Dalman 1827 | |
|
Glossorthis sp. Öpik 1930 | |
|
Paurorthis parva Pander 1830 | |
| Lingulata | |
|
Pseudolingula sp. Mickwitz 1909 | |