Kyrshabakty River, 1400-1 (Cambrian of Kazakhstan)

Where: Kazakhstan (43.5° N, 70.0° E: paleocoordinates 6.4° S, 94.7° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Lotagnostus (Eolotagnostus) scrobicularis-Jegorovaia trilobite zone, Bestogai Formation, Aksaian (492.8 - 491.5 Ma)

• sample 1400-1 from unit XI (415-530 m) of the Kyrshabakty River section

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified limestone

• inner fan feeder channels; slope of an isolated carbonate platform known as the Aisha-Bibi sea-mount
• massive carbonate breccia with clayish-detrital matrix

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 118486: authorized by Wolfgang Kiessling, entered by Uta Merkel on 15.10.2011, edited by Marcus Domansky

Creative Commons license: CC BY (attribution)

Taxonomic list

Artiopoda
 Agnostida - Agnostidae
Lotagnostus (Eolotagnostus) agnostiformis Apollonov and Tschugaeva 1983
Lotagnostus (Eolotagnostus) pseudohedini Ergaliev and Ergaliev 2008
Lotagnostus (Eolotagnostus) cristus Ergaliev and Ergaliev 2008
Micragnostus curvata Robison and Pantoja-Alor 1968
Trilobagnostus spinosus n. sp. Ergaliev and Ergaliev 2008
 Agnostida - Diplagnostidae
Sulcatagnostus rugosus Ergaliev 1980
Pseudagnostus punctatus Ergaliev and Ergaliev 2008
"Rhaptagnostus impressus" = Pseudagnostus
"Rhaptagnostus clarki" = Pseudagnostus
subsp. patulus, pilaformis
Rhaptagnostus gunnari Ludvigsen et al. 1989
Rhaptagnostus bifax Shergold 1975
Rhaptagnostus heteromorphus Xiang and Zhang 1985
Trilobita
 Olenida - Olenidae
Westergaardites pelturaeformis1 Troedsson 1937 trilobite
Chekiangaspis karatauensis1 Ergaliev 1980 trilobite
Parabolinites bisulcatus1 Ergaliev 1980 trilobite
 Olenida - Eulomidae
Probilacunaspis prolatus1 Ergaliev 1980 trilobite
 Trinucleida - Alsataspididae
Jegorovaia expansa1 Lu 1964 trilobite
Lingulata
 Lingulida - Obolidae
Experilingula divulgata2 Koneva and Popov 1983