Where: Siberia, Russian Federation (68.0° N, 88.0° E: paleocoordinates 11.3° S, 14.0° E)
• local area-level geographic resolution
When: Nyaiskii Formation, Tremadoc (486.5 - 477.7 Ma)
• formation-level stratigraphic resolution
Environment/lithology: peritidal; lithified lime mudstone and dolomite
Collection methods: JA: marked by Novack-Gottshall without explanation as omitting some genera, some macrofossils, some microfossils, and species names, but apparently complete
Primary reference: A. V. Rozova. 1968. Biostratigrafiya i trilobity verkhnego Kembriya i nizhnego Ordovika severo-zapada Sibirskoy Platformy [Biostratigraphy and trilobites of the Upper Cambrian and Lower Ordovician of the northwestern Siberian platform]. Trudy Instituta Geologii i Geofiziki, Sibirskoye Otdeleniye 36:1-195 [A. Miller/P. Novack-Gottshall/U. Merkel]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 9283: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 12.10.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Loparella sp. Rozova 1968 trilobite
Pseudoacrocephalites sp. Maksimova 1962 trilobite
Lopeuloma sp. Rozova 1968 trilobite | |
Diceratocephalina sp. Maksimova 1962 trilobite | |
Plethopeltoides sp. Khramova 1968 trilobite | |
Rhynchonellata | |
? Nanorthis sp. Ulrich and Cooper 1936 | |
Tetralobula sp. Ulrich and Cooper 1936 | |
Pterobranchia | |
Callograptus sp. graptolite
Dictyonema sp. Hall 1851 graptolite |