Molodo River. Bed 12 (Cambrian of Russian Federation)

Where: Russian Federation (69.7° N, 124.2° E: paleocoordinates 15.2° S, 9.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Kounamkites trilobite zone, Kuonamka Formation, Amgan (510.2 - 504.5 Ma)

• Bed 12

• member-level stratigraphic resolution

Environment/lithology: lithified limestone

• dark gray massive limestone

Size class: macrofossils

Collection methods: Repository: IGiG (Institute for Geology and Geophysics, Novosibirsk)

Primary reference: I. V. Korovnikov and Y. Y. Shabanov. 2016. Trilobites and biostratigraphy of the Kuonamka Formation, northern Siberian Platform (Olenek River). Russian Geology and Geophysics 57(4):562-573 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 235430: authorized by Pete Wagner, entered by Pete Wagner on 06.07.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Artiopoda
 Agnostida - Condylopygidae
Condylopyge carinata WestergÄrd 1936
 Agnostida - Ptychagnostidae
 Agnostida - Peronopsidae
 Agnostida - Eodiscidae
Trilobita
 Ptychopariida - Ptychopariidae
 Ptychopariida - Alokistocaridae
 Corynexochida - Dinesidae
Erbia granulosa Lermontova 1940 trilobite
 Corynexochida - Oryctocephalidae
Oryctocephalus reticulatus Lermontova 1940 trilobite
"Oryctocephalus reynoldsiformis" = Oryctocephalites reynoldsiformis Lermontova 1940 trilobite
"Oryctocephalus vicinus" = Oryctocephalites vicinus Tchernysheva 1962 trilobite
Oryctocephalops frischenfeldi Lermontova 1940 trilobite
 Ichnofossils -
Granularia sp. Pomel 1849