ammonites
Rugaria nisalensis Waterhouse 1978 (lamp shell)

Strophomenata - Productida - Rugosochonetidae

Full reference: J. B. Waterhouse. 1978. Permian Brachiopoda and Mollusca from north-west Nepal. Palaeontographica Abteilung A 160(1-6):1-175

Belongs to Rugaria according to J. B. Waterhouse 1978

Sister taxa: Rugaria crassa, Rugaria exquisita, Rugaria hessensis, Rugaria molengraaffi, Rugaria pajchoica

Type specimen: UQF 68841, a valve (Decorticated ventral valve). Its type locality is W1275, Section 13, Popagaon, Karnali, which is in a Changhsingian marine siliciclastic in the Senja Formation of Nepal.

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): valve 7.98 x 12.90