Cephalopoda - Nautilida - Tainoceratidae

Full reference: R. Chirat. 2006. Taxonomic names, in Nautiloids of the Permian-Triassic Khuff Formation, central Saudi Arabia. GeoArabia 11:86-88

Belongs to Tirolonautilus according to D. Korn and A. Ghaderi 2025

See also Chirat 2006 and Posenato 2010

Sister taxa: Tirolonautilus cruciformis, Tirolonautilus crux, Tirolonautilus lativentralis, Tirolonautilus sebedinus

Type specimen: FSL 391800. Its type locality is Jabal al Amshiyah, Ad Dawadimi quadrangle, Khuff Formation, Khartam Member, which is in a Changhsingian shallow subtidal limestone in the Khuff Formation of Saudi Arabia.

Ecology: nektobenthic carnivore

Average measurements (in mm): shell diameter 115.0

Distribution: found only at Jabal al Amshiyah, Ad Dawadimi quadrangle, Khuff Formation, Khartam Member

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Specimen images are retrieved through the ePANDDA API.