Bivalvia - Cyrtodontida - Cyrtodontidae

Full reference: H. Soot-Ryen and T. Soot-Ryen. 1960. The Middle Ordovician of the Oslo region, Norway: 11, Pelecypoda. Norsk Geologisk Tidsskrift 40(2):81-122

Belongs to Cyrtodontula according to H. Soot-Ryen and T. Soot-Ryen 1960

Sister taxa: Cyrtodontula complanata, Cyrtodontula compressa, Cyrtodontula delacarlica, Cyrtodontula hadzeli, Cyrtodontula obliquata, Cyrtodontula sohli, Cyrtodontula subtruncata

Type specimen: P.M.O7254, a shell.

Ecology: passively mobile semi-infaunal suspension feeder