Where: Nepal (29.6° N, 83.8° E: paleocoordinates 50.7° S, 62.8° 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 sandstone
Size class: macrofossils
Preservation: cast, original calcite
Collection methods: bulk,
• 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 43194: authorized by David Bottjer, entered by Matthew Clapham on 10.08.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Myalinidae indet. Frech 1891 clam | |
Etheripecten sp. Waterhouse 1963 scallop | |
? Clavicosta rugatula Waterhouse 1978 scallop | |
Rhynchonellata | |
Dielasmatidae "indet. A" Schuchert 1913 | |
Hoskingia dieneri Waterhouse 1978 | |
? Heterelasma sp. Girty 1909 | |
? Spirigerella sp. Waagen 1883
? Cleiothyridina "sp. B" Buckman 1906 | |
"Spiriferella oblata n. sp." = Arcullina oblata
"Spiriferella oblata n. sp." = Arcullina oblata Waterhouse 1978 | |
"Neospirifer ravaniformis" = Betaneospirifer ravaniformis
"Neospirifer ravaniformis" = Betaneospirifer ravaniformis Waterhouse 1978 | |
? Phricodothyris sp. George 1932 | |
Strophomenata | |
Megasteges nepalensis Waterhouse 1975 | |
Marginalosia kalikotei Waterhouse 1975 | |
Productina indet. Sutton 1938 |