Kyrshabakty River, 1355-6 (Cambrian of Kazakhstan)

Where: Kazakhstan (43.5° N, 70.0° E: paleocoordinates 6.0° S, 95.1° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Acutatagnostus acutatus trilobite zone, Zhumabai Formation, Sakian (497.0 - 492.8 Ma)

• sample 1355-6 from unit VII (132-263 m) of the Kyrshabakty River section

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified limestone

• outer fan lobe; slope of an isolated carbonate platform known as the Aisha-Bibi sea-mount
• parallel laminated limestone, carbonate turbidite, lime wackestone and packstone of grey and dark grey colour

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 118310: authorized by Wolfgang Kiessling, entered by Uta Merkel on 12.10.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Ptychopariida - Elviniidae
"Parairvingella sp." = Irvingella
"Parairvingella sp." = Irvingella Ulrich and Resser 1924 trilobite
 Ptychopariida - Norwoodiidae
Hardyoides sp.
Hardyoides sp. Kobayashi 1938 trilobite
 Asaphida - Ceratopygidae
Proceratopyge gordonensis, Proceratopyge (Sinoproceratopyge) kiangshanensis, "Proceratopyge cylindrica" = Proceratopyge rectispinata
"Proceratopyge cylindrica" = Proceratopyge rectispinata Troedsson 1937 trilobite
 Harpetida - Entomaspididae
Baikadamaspis proprius
Baikadamaspis proprius Ergaliev 1980 trilobite
 Corynexochida - Cheilocephalidae
Aksayaspis convexus
Aksayaspis convexus Ergaliev 2001 trilobite
 Corynexochida - Corynexochidae
Corynexochus plumula
Corynexochus plumula Whitehouse 1939 trilobite
 Lichida - Lichakephalidae
Paraacidaspis hunanica
Paraacidaspis hunanica Egorova 1960 trilobite
 Olenida - Aphelaspidae
Erixanium carinatum
Erixanium carinatum Palmer 1965 trilobite
  -
Spizharaspis rarus
Spizharaspis rarus Ergaliev 2001 trilobite
Artiopoda
 Agnostida -
Phaldagnostus orbiformis
 Agnostida - Agnostidae
"Acutatagnostus sp." = Agnostus, Acutatagnostus acutatus, "Kormagnostella inventa" = Kormagnostus inventus
"Acutatagnostus sp." = Agnostus Brongniart 1822
Acutatagnostus acutatus Ergaliev 1980
"Kormagnostella inventa" = Kormagnostus inventus Shergold 1982
 Agnostida - Diplagnostidae
Pseudagnostus idalis, Pseudagnostus communis
Pseudagnostus communis Hall and Whitfield 1877
 Agnostida - Spinagnostidae
Peratagnostus obsoletus, Peratagnostus orientalis
Peratagnostus obsoletus Kobayashi 1935
Peratagnostus orientalis Lazarenko 1966