Middle zone trilobites, Gorniy Altay, Russia - Poletaeva and Romanenko 1970 (Cambrian of Russian Federation)

Where: Gorniy Altay, Russian Federation (52.0° N, 86.0° E: paleocoordinates 5.2° S, 15.3° E)

• coordinate based on political unit

• basin-level geographic resolution

When: Mayan (504.5 - 499.5 Ma)

• Fossils collected in the upper 800m of the section found in the basins of the Tandoshka and Tagaza Rivers.

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, gray, green sandstone and lithified siltstone

• gray-green sandstone, siltstone and claystone

Primary reference: O. K. Poletaeva and Y.e. V. Romanenko. 1970. Middle and Late Cambrian trilobites of the Altay. Paleontological Journal 4(2):216-228 [M. Patzkowsky/P. Borkow]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 10173: authorized by Mark Patzkowsky, entered by Phil Borkow on 22.02.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• Trilobites described are those of the greatest significance for correlation of the enclosing deposit with synchronous deposits of other regions.
Trilobita
 Ptychopariida - Papyriaspididae
Prohedinia sp. Lermontova and Chernysheva 1950 trilobite
 Corynexochida - Corynexochidae
Corynexochus sp. Angelin 1854 trilobite
 Corynexochida - Dorypygidae
Dorypygina sp. Lermontova 1940 trilobite
  - Mapaniidae
Mapania sp. Resser and Endo 1935 trilobite
Artiopoda
 Agnostida - Diplagnostidae
Diplagnostus sp. Jaeckel 1909
 Agnostida - Ptychagnostidae
Goniagnostus sp. Howell 1935