Kyrshabakty River, 1465-12 (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: Ptychagnostus atavus trilobite zone, Aktas Formation, Tyesaian (513.0 - 505.0 Ma)

• sample 1465-12 from unit V (10-91.5 m) of the Kyrshabakty River section

• bed-level stratigraphic resolution

Environment/lithology: basinal (); lithified lime mudstone

• basin plain
• alternation of thin-bedded dark gray carbonate mudstones (thin pelitomorphic limestones)

Size class: mesofossils

Preservation: cast

Primary reference: G. K. Ergaliev and F. G. Ergaliev. 2008. Agnostidy srednego i verkhnego Kembriya Aksayskogo Gosudarstvennogo Geologicheskogo Zakaznika v yushnom Kazakhstane (Kyrshabakty, Malyy Karatau) [Middle and Upper Cambrian Agnostida from the Aksai National Geological Reserve in southern Kazakhstan (Kyrshabakty River, Malyy Karatau Range)] 1-359 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 118089: authorized by Wolfgang Kiessling, entered by Uta Merkel on 05.10.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Agnostida - Spinagnostidae
Pseudoperonopsis karatauensis Ergaliev and Ergaliev 2008 trilobite
 Agnostida - Ptychagnostidae
Ptychagnostus ex gr. punctuosus Angelin 1851 trilobite
Ptychagnostus atavus Tullberg 1880 trilobite
Ptychagnostus karatauensis Ergaliev 1980 trilobite
Pentagnostus admirabilis n. sp. Ergaliev and Ergaliev 2008 trilobite