Bap, western Rajasthan (Permian of India)

Where: India (27.4° N, 72.3° E: paleocoordinates 56.8° S, 50.9° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bap Formation, Sakmarian (295.5 - 290.1 Ma)

• Granulatisporites confluens pollen zone, assigned by authors to mid-Asselian but to early Sakmarian (Tastubian) by Archbold et al., 1996.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: replaced with silica

Collection methods: Only part of the fauna was available for study.

Primary reference: J. B. Waterhouse and A. Ranga Rao. 1989. Early Permian brachiopod and bivalve species from the Bap Formation of Peninsula India. Paläontologische Zeitschrift 63:25-39 [D. Bottjer/M. Clapham/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 39932: authorized by David Bottjer, entered by Matthew Clapham on 12.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Chaenocardiidae
Eurydesma hobartense Johnston 1887 scallop
ssp. rotundatum
Strophomenata
 Productida - Strophalosiidae
"Strophalosia perfecta n. sp." = Etherilosia perfecta
"Strophalosia perfecta n. sp." = Etherilosia perfecta Waterhouse and Ranga Rao 1989
 Orthotetida - Schuchertellidae
Arctitreta bapensis n. sp. Waterhouse and Ranga Rao 1989
Rhynchonellata
 Terebratulida - Dielasmatidae
? Elasmata "sp. nov." Waterhouse 1982
 Spiriferinida - Paraspiriferinidae
Lamniplica punctata n. gen. n. sp.
Lamniplica punctata n. gen. n. sp. Waterhouse and Ranga Rao 1989
 Spiriferinida - Syringothyrididae
Cyrtella sp. Fredericks 1924
 Spiriferida - Trigonotretidae
Trigonotreta sp. Koenig 1825