USNM9175, Kingriali Mountain, Khisor Range (Permian of Pakistan)

Where: Northwest Frontier, Pakistan (32.2° N, 71.0° E: paleocoordinates 40.9° S, 55.7° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Chhidru Formation, Changhsingian (254.2 - 252.2 Ma)

• Bed 2 is top bed of White Sandstone Unit, the top bed of the Chhidru Formation. 7.5 feet thick.

Environment/lithology: marine; fine-grained, medium, white, yellow, calcareous sandstone

• Sandstone, white to light yellowish-grey, calcareous, fine- to medium-grained, generally friable with the exception of thin, hard, more calcareous beds in the middle and near the top which contain bryozoans and brachiopods.

Size class: macrofossils

Primary reference: R. E. Grant. 1970. Brachiopods from the Permian-Triassic boundary beds and age of Chhidru Formation, West Pakistan. Department of Geology, University of Kansas Special Publication 4:117-151 [D. Bottjer/M. Clapham/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 41558: authorized by David Bottjer, entered by Matthew Clapham on 16.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Athyridida - Athyrididae
Cleiothyridina pijaensis1, Spirigerella sp.
Cleiothyridina pijaensis1 Waterhouse 1983
Spirigerella sp. Waagen 1883
 Orthida - Schizophoriidae
? Orthotichia sp.
? Orthotichia sp. Hall and Clarke 1892
 Orthida - Enteletidae
Enteletes granti2
Enteletes granti2 Waterhouse and Gupta 1983
 Terebratulida - Dielasmatidae
Whitspakia "sp. 1"
Whitspakia "sp. 1" Stehli 1964
Strophomenata
 Productida - Echinoconchidae
Waagenoconcha sp.
 Orthotetida - Derbyiidae
Derbyia postplicatella2
Derbyia postplicatella2 Waterhouse and Gupta 1983
Bryozoa
  -
Bryozoa indet.
Bryozoa indet. Ehrenberg 1831
1Waterhouse 1983; 2Waterhouse and Gupta 1983