W1245, Karnali Unspecified (Permian of Nepal)

Where: Nepal (29.5° N, 83.0° E: paleocoordinates 50.3° S, 61.9° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Luri Member (Senja Formation), Changhsingian (254.2 - 252.2 Ma)

• Correlation is difficult, but stratigraphic position suggests Changhsingian age.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: cast, original calcite

Collection methods: Some collections were of individual specimens, others as large as possible under the circumstances, with a few localities represented by rock weighing more than 50 kg. Most collections were made from just over 50 measured sections, and are under good stratigraphic control.

Primary reference: J. B. Waterhouse. 1978. Permian Brachiopoda and Mollusca from north-west Nepal. Palaeontographica Abteilung A 160(1-6):1-175 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 43257: authorized by David Bottjer, entered by Matthew Clapham on 11.08.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Strophomenida - Rugosochonetidae
? Rugaria "sp. B" Cooper and Grant 1969
 Productida - Aulostegidae
Megasteges nepalensis Waterhouse 1975
 Productida - Strophalosiidae
Strophalosiidae indet. Schuchert 1913
Marginalosia kalikotei Waterhouse 1975
Rhynchonellata
 Spiriferida - Spiriferellidae
"Spiriferella oblata" = Arcullina oblata
"Spiriferella oblata" = Arcullina oblata Waterhouse 1978
 Terebratulida - Beecheriidae
Hoskingia sp. Campbell 1965
Bivalvia
 Pectinida - Dolponellidae
Dolponella sulcata Waterhouse 1978 scallop
 Pectinida - Deltopectinidae
Cyrtorostra sp. Branson 1930 scallop
Gastropoda
 Murchisoniina - Murchisoniidae
Murchisoniidae indet. Koken 1896 snail
 Murchisoniina - Gosseletinidae
Collabrina lunulata Waterhouse 1978 snail