Kyrshabakty River, 1376-8 (Cambrian of Kazakhstan)

Where: Kazakhstan (43.5° N, 70.0° E)

• Paleocoordinates: 25.9° S, 44.2° E (Wright 2013)

• 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 1376-8 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 118485: authorized by Wolfgang Kiessling, entered by Uta Merkel on 14.10.2011, edited by Bethany Allen

Creative Commons license: CC0 (CC0)

Taxonomic list

Artiopoda
 Agnostida - Diplagnostidae
Trilobita
 Olenida - Eulomidae
Ketyna karatauensis Lisogor 1977 trilobite
Probilacunaspis prolatus Ergaliev 1980 trilobite
Proteuloma debila Ergaliev 1980 trilobite
 Olenida - Olenidae
Westergaardites pelturaeformis Troedsson 1937 trilobite
Parabolinites bisulcatus Ergaliev 1980 trilobite
Chekiangaspis karatauensis Ergaliev 1980 trilobite
 Trinucleida - Alsataspididae
Jegorovaia expansa Lu 1964 trilobite
 Asaphida - Ceratopygidae
Tropidopyge laevis Ergaliev 1980 trilobite
Artiopoda
 Agnostida - Diplagnostidae
"Pseudagnostus "sp. 4"" = Pseudagnostus Jaekel 1909
"Rhaptagnostus impressus" = Pseudagnostus
Rhaptagnostus plenus Xiang and Zhang 1985
Rhaptagnostus heteromorphus Xiang and Zhang 1985
Rhaptagnostus gunnari Ludvigsen et al. 1989
Rhaptagnostus bifax Shergold 1975
Sulcatagnostus rugosus Ergaliev 1980
 Agnostida - Agnostidae