Where: Kazakhstan (44.8° N, 74.1° E: paleocoordinates 12.9° S, 80.6° E)
• coordinate estimated from map
• small collection-level geographic resolution
When: Unit 4 Member (Alakul Formation), Abereiddian (466.0 - 460.9 Ma)
• Anrakhaian stage
• bed-level stratigraphic resolution
Environment/lithology: open shallow subtidal; lithified, nodular, argillaceous, silty limestone and argillaceous siltstone
•Nodular, sandy and silty limestones
Size class: macrofossils
Collection methods: bulk,
Primary reference: L. E. Popov, O. Vinn, and O. I. Nikitina. 2001. Brachiopods of the redefined family Tritoechiidae from the Ordovician of Kazakhstan and South Urals. Geobios 34(2):131-155 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 165483: authorized by Pete Wagner, entered by Pete Wagner on 19.01.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Annamitella granulata trilobite | |
Illaenus sp. Dalman 1827 trilobite
Bumastoides betpakensis trilobite | |
Ostracoda | |
Coeloenellina inconstans ostracod | |
Alakolites superbus ostracod | |
Reversocypris ex gr. angularis ostracod | |
Strophomenata | |
Leptella sarytumensis n. sp. Nikitina et al. 2006
Aporthophyla kasachstanica Rukavishnikova 1956 | |
Pomatotrema fecunda n. sp.
Pomatotrema fecunda n. sp. Popov et al. 2001 | |
Martellia reliqua Popov et al. 2001 | |
Rhynchonellata | |
Archaeorthis major Nikitina et al. 2006 | |
Trematorthis karasaiensis n. sp., Tuvinia alakulica n. sp.
Trematorthis karasaiensis n. sp. Nikitina et al. 2006 |