Rhynchonellata - Spiriferida - Trigonotretidae

Alternative combination: Spirifer papillionata

Full reference: M. R. Sahni and J.P. Srivastava. 1956. Discovery of Eurydesma and Conularia in the eastern Himalaya and description of associated faunas. Journal of the Palaeontological Society of India 1:202-214

Belongs to Brachythyrinella according to G. A. Cisterna and N. W. Archbold 2007

See also Sahni and Srivastava 1956

Sister taxa: Brachythyrinella duttai, Brachythyrinella hesdoensis, Brachythyrinella narsarhensis

Type specimen: GSI 17651. Its type locality is Khemgaon Chorten, Sikkim, which is in an Asselian coastal sandstone in India.

Ecology: stationary epifaunal suspension feeder

Distribution: found only at Khemgaon Chorten, Sikkim

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Specimen images are retrieved through the ePANDDA API.