ammonites
Tivertonia tatamariensis Archbold and Singh 1993 (lamp shell)

Strophomenata - Productida - Rugosochonetidae

Full reference: N. W. Archbold and T. Singh. 1993. Systematic palaeontology, in Brachiopoda from the Early Permian of the eastern Himalaya. Alcheringa 17:55-75

Belongs to Tivertonia according to N. W. Archbold and T. Singh 1993

Sister taxa: Tivertonia chumikensis, Tivertonia jachalensis, Tivertonia pillahuincensis, Tivertonia yarrolensis

Type specimen: WIF/A936, a valve (Dorsal valve, external mould). Its type locality is Sijik River, Locality 23, which is in a Sakmarian marine shale/shale in the Garu Formation of India.

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): valve 12.5 x 17.6