Jumara Dome, Bed 7 (Jurassic of India)

Where: Gujarat, India (23.7° N, 69.1° E: paleocoordinates 22.8° S, 32.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Macrocephalites formosus ammonoid zone, Early/Lower Callovian (164.7 - 161.2 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified carbonate

Size class: macrofossils

Collection methods: Repository: Department of Geological Sciences, Jadavpur University

Primary reference: S. Bardhan, K. Halder, and S. K. Jana. 1994. Earliest sexual dimorphism in Nautiloidea from the Jurassic of Kutch, India. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 193:287-309 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 167362: authorized by Matthew Clapham, entered by Matthew Clapham on 12.03.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Perisphinctidae
Choffatia cobra2 ammonite
Sivajiceras paramorphum1 Waagen 1875 ammonite
 Nautilida - Paracenoceratidae
Paracenoceras calloviense Oppel 1858 nautiloid