Kyrshabakty River, 1465-1 (Cambrian of Kazakhstan)

Where: Kazakhstan (43.5° N, 70.0° E: paleocoordinates 0.7° S, 100.8° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Peronopsis ultimus trilobite zone, Amgan (513.0 - 505.0 Ma)

• sample 1465-1 from unit IV (0-10 m) of the Kyrshabakty River section (Ergaliev 2008)

• bed-level stratigraphic resolution

Environment/lithology: deep-water; lithified, argillaceous limestone

• "parallel-laminated thin bedded argillaceous carbonate shales of brownish and dark-brownish colour" (Ergaliev 2008)

Size class: mesofossils

Preservation: cast

Primary reference: S. N. Koneva. 1990. New Middle Cambrian Acrotretids (Brachiopods) from the Lesser Karatau Range. Paleontological Journal 24(3):45-55 [M. Patzkowsky/P. Borkow/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 9970: authorized by Mark Patzkowsky, entered by Phil Borkow on 05.02.2001, edited by Uta Merkel and Marcus Domansky

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Lingulata
 Lingulida - Obolidae
Aksarinaia triquetra3 Koneva 1992
 Lingulida - Zhanatellidae
 Lingulida - Kyrshabaktellidae
Kyrshabaktella certa3 Ushatinskaya and in Pelman 1992
 Acrotretida - Acrotretidae
Kotylotreta undata, Stilpnotreta tecta n. sp., "Linnarssonia captiosa" = Linnarssonia captiosa, "Linnarssonia ventosa n. sp." = Linnarssonia captiosa, Prototreta venusta n. sp.
Kotylotreta undata Koneva 1990
Stilpnotreta tecta n. sp. Koneva 1990
"Linnarssonia captiosa" = Linnarssonia captiosa Koneva 1990
"Linnarssonia ventosa n. sp." = Linnarssonia captiosa Koneva 1990
Prototreta venusta n. sp. Koneva 1990
Trilobita
 Ptychopariida - Proasaphiscidae
 Asaphida - Anomocarellidae
Luia trisulca1 trilobite
Luia formosus1 trilobite
 Corynexochida - Dorypygidae
 Corynexochida - Oryctocephalidae
Tonkinella valida1 Tchernysheva 1962 trilobite
Artiopoda
 Agnostida - Peronopsidae
 Agnostida - Ptychagnostidae
Onymagnostus cuneiformis2 Ergaliev and Ergaliev 2008