PBDB Collection

Kyrshabakty River, 1465-2 (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 intermedius trilobite zone, Aktas Formation, Tuesaian (505.3 - 503.0 Ma)

• sample 1465-2 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 118054: authorized by Wolfgang Kiessling, entered by Uta Merkel on 05.10.2011, edited by Marcus Domansky

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Prosymphysurina glabra¹, Prosymphysurina triangulata¹, Pseudamecephalus bxelus¹, Pseudamecephalus tuberculus¹, Pseudamecephalus kyrshabactensis¹ Prosymphysurina glabra¹ Prosymphysurina triangulata¹ Pseudamecephalus bxelus¹ Pseudamecephalus tuberculus¹ Pseudamecephalus kyrshabactensis¹
Paterinata
Paterinida - Paterinidae	Dictyonina hexagona² Dictyonina hexagona²
Trilobita
Corynexochida - Oryctocephalidae	Tonkinella cf. stephensis¹, Tonkinella flexa¹, Tonkinella laevigata¹, Tonkinella valida¹ Tonkinella cf. stephensis¹ trilobite Tonkinella flexa¹ trilobite Tonkinella laevigata¹ trilobite Tonkinella valida¹ Tchernysheva 1962 trilobite
Corynexochida - Dorypygidae	Olenoides placites¹, Olenoides optimus¹, Olenoides calvus¹, Olenoides inexpectans¹, Olenoides subylaris¹ Olenoides placites¹ trilobite Olenoides optimus¹ trilobite Olenoides calvus¹ trilobite Olenoides inexpectans¹ trilobite Olenoides subylaris¹ trilobite
Asaphida - Anomocaridae	Formosocephalus laevigata¹ Formosocephalus laevigata¹ trilobite
Ptychopariida - Alokistocaridae	Ehmaniella karatauica¹ Ehmaniella karatauica¹ trilobite
Ptychopariida - Proasaphiscidae	Manchuriella typa¹, Manchuriella consimula¹, Manchuriella kazachstanica¹, Proasaphiscus affluensis¹, Proasaphiscus planus¹, Pseudanomocarina aojiformis¹, Pseudanomocarina horrida¹, Pseudanomocarina parva¹, Eymekops unicus¹ Manchuriella typa¹ trilobite Manchuriella consimula¹ trilobite Manchuriella kazachstanica¹ trilobite Proasaphiscus affluensis¹ trilobite Proasaphiscus planus¹ trilobite Pseudanomocarina aojiformis¹ trilobite Pseudanomocarina horrida¹ trilobite Pseudanomocarina parva¹ trilobite Eymekops unicus¹ trilobite
Artiopoda
Agnostida - Peronopsidae	Pentagnostus praecurrens, Peronopsis scutalis, Peronopsis angustilimbatus n. sp., Peronopsis fallax, Peronopsis cf. bulkurensis, Peronopsis pseudointerstrictus n. sp., Peronopsis cf. cylindrica, Peronopsis cf. integra, Peronopsis amplaxis, "Peronopsis cf. gaspensis" = Itagnostus gaspensis, "Peronopsis interstricta" = Itagnostus interstrictus Pentagnostus praecurrens Westergård 1936 Peronopsis scutalis Peronopsis angustilimbatus n. sp. Ergaliev and Ergaliev 2008 Peronopsis fallax Linnarsson 1869 Peronopsis cf. bulkurensis Pokrovskaya and Pegel 1982 Peronopsis pseudointerstrictus n. sp. Ergaliev and Ergaliev 2008 Peronopsis cf. cylindrica Westergard 1946 Peronopsis cf. integra Beyrich 1845 Peronopsis amplaxis Robison 1982 "Peronopsis cf. gaspensis" = Itagnostus gaspensis Rasetti 1948 "Peronopsis interstricta" = Itagnostus interstrictus White 1874
Agnostida - Diplagnostidae	Diplagnostus pseudfloralis, Baltagnostus magnificus, Baltagnostus rakuroensis Diplagnostus pseudfloralis Baltagnostus magnificus Ergaliev and Ergaliev 2008 Baltagnostus rakuroensis Kobayashi 1935
Agnostida - Ptychagnostidae	Tomagnostus sibiricus, Triplagnostus gibbus, Onymagnostus convexus n. sp., Onymagnostus rotundatus, Onymagnostus ovaliformis n. sp., Ptychagnostus intermedius, Ptychagnostus convexus Tomagnostus sibiricus Pokrovskaya and Jegorova 1972 Triplagnostus gibbus Linnarsson 1869 Onymagnostus convexus n. sp. Ergaliev and Ergaliev 2008 Onymagnostus rotundatus Ergaliev 1980 Onymagnostus ovaliformis n. sp. Ergaliev and Ergaliev 2008 Ptychagnostus intermedius Tullberg 1880 Ptychagnostus convexus Westergard 1946

¹Ergaliev 2009; ²Holmer et al. 2001