Khantayka River, Nya Formation (Ordovician of Russian Federation)

Where: Krasnoyar, Russian Federation (68.1° N, 86.5° E: paleocoordinates 11.8° S, 14.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Nya Formation, Tremadocian (485.4 - 477.7 Ma)

• Nyaian regional stage (lowermost Ordovician)

• formation-level stratigraphic resolution

Environment/lithology: perireef or subreef; lithified limestone

• algal limestone, limestone, dolomitic limestone

Size class: macrofossils

Preservation: cast, mold/impression

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: taxonomic analysis

PaleoDB collection 131414: authorized by Wolfgang Kiessling, entered by Uta Merkel on 24.07.2012, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Proetida - Hystricuridae
Nyaya nyaensis Rozova 1963 trilobite
 Asaphida - Remopleurididae
Apatokephalus nyaicus Rozova 1968 trilobite
Rhynchonellata
 Orthida - Eoorthidae
Apheoorthis submelita Yadrenkina 1967
Apheoorthis submelita Yadrenkina 1967