Where: Nepal (29.5° N, 83.0° E: paleocoordinates 50.3° S, 61.9° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Nisal Member (Senja Formation), Changhsingian (254.2 - 252.2 Ma)
• Correlation is difficult, but stratigraphic position suggests Changhsingian age.
• bed-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 43166: authorized by David Bottjer, entered by Matthew Clapham on 10.08.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Collabrina lunulata Waterhouse 1978 snail | |
Bivalvia | |
? Dunbarella sp. Newell 1938 scallop | |
Rhynchonellata | |
"Punctocyrtella plodowskii" = Syrella plodowskii
"Punctocyrtella plodowskii" = Syrella plodowskii Waterhouse 1978 | |
Cleiothyridellina accoliformis Waterhouse 1978 | |
Spiriferella rajah Salter 1865 | |
"Neospirifer ravaniformis" = Betaneospirifer ravaniformis
"Neospirifer ravaniformis" = Betaneospirifer ravaniformis Waterhouse 1978 | |
Strophomenata | |
Megasteges nepalensis Waterhouse 1975 | |
Marginalosia kalikotei Waterhouse 1975 | |
"Linoproductus crassicostina" = Costatumulus crassicostatina
"Linoproductus crassicostina" = Costatumulus crassicostatina Waterhouse and Gupta 1983 | |
"Rugaria nisalensis" = Nisalarinia nisalensis
"Rugaria nisalensis" = Nisalarinia nisalensis Waterhouse 1978 |