Nammal Gorge NAM-B7, Salt Range (Triassic of Pakistan)

Where: Pakistan (32.7° N, 71.8° E: paleocoordinates 39.1° S, 57.0° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Bivalve Beds Member (Upper Ceratite Limestone Formation), Spathian (251.3 - 247.2 Ma)

• A late Smithian age is indicated by the presence of Hedenstroemia and Xenoceltites between BB2 and BB3, whereas in BB7, a new genus of Tirolitidae that is morphologically transitional towards Columbites already postdates the earliest Spathian. In consequence, at Nammal, the Smithian–Spathian boundary is located above BB3 and below BB7.

• bed-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Collected by Bucher, Hautmann, Hermann, Ware in 2009, 2010

• Repository: Palaeontological Institute and Museum of the University of Zurich, Switzerland (PIMUZ)

Primary reference: M. Wasmer, M. Hautmann, E. Hermann, D. Ware, G. Roohi, K. Ur-Rehman, A. Yaseen and H. Bucher. 2012. Olenekian (Early Triassic) bivalves from the Salt Range and Surghar Range, Pakistan. Palaeontology 55:1043-1073 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 133701: authorized by Matthew Clapham, entered by Matthew Clapham on 25.09.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Nuculanida - Malletiidae
? Palaeoneilo fortistriata Wasmer and Hautmann 2012 clam
 Carditida - Astartidae
? Astartella sp. Hall 1858 clam
 Ostreida - Bakevelliidae
? Bakevellia sp. King 1848 oyster
 Pectinida - Limidae
Dimorphoconcha globosa n. gen. n. sp.
Dimorphoconcha globosa n. gen. n. sp. Wasmer and Hautmann 2012 file clam
 Pectinida - Entoliidae
Scythentolium kokeni von Wittenburg 1909 scallop