Kyrshabakty River, 1347-1a (Cambrian of Kazakhstan)

Where: Kazakhstan (43.5° N, 70.0° E: paleocoordinates 3.2° S, 98.9° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Lejopyge laevigata trilobite zone, Zhumabai Formation, Ayusokkanian (499.5 - 497.0 Ma)

• sample 1347-1a from the interval 122-132 m of unit VI (91.5-132 m) of the Kyrshabakty River section (Ergaliev 2008)

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified lime mudstone

• outer fan fringe; slope of an isolated carbonate platform known as the Aisha-Bibi sea-mount
• thin-bedded dark gray carbonate mudstone with thin parallel laminated clayish limestone

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 9945: authorized by Mark Patzkowsky, entered by Phil Borkow on 02.02.2001, edited by Uta Merkel and Marcus Domansky

Creative Commons license: CC BY (attribution)

Taxonomic list

Lingulata
 Acrotretida - Acrotretidae
Artiopoda
 Agnostida - Clavagnostidae
Clavagnostus repandus1 Westergard 1930
 Agnostida - Ptychagnostidae
Lejopyge armata1, "Ptychagnostus aculeatus" = Acidusus aculeatus1
Lejopyge armata1 Linnarsson 1869
"Ptychagnostus aculeatus" = Acidusus aculeatus1 Angelin 1851
 Agnostida - Phalacromidae
Lisogoragnostus mictus1 Peng and Robison 2000
 Agnostida - Spinagnostidae
Tomagnostella sulcifera1 Wallerius 1895
Tomagnostella exsculpta1 Angelin 1851
Hypagnostus parvifrons1 Linnarsson 1869
Hypagnostus brevifrons1 Angelin 1851
 Agnostida - Agnostidae
Hadragnostus quadratiformis1 Ergaliev and Ergaliev 2008