Gastropoda - Bellerophontida - Bellerophontidae
Alternative combinations: Joleandella sigmoidalis, Oxynodiscus sigmoidalis
Full reference: T. Kobayashi. 1934. The Cambro-Ordovician formations and faunas of south Chosen. Paleontology. Part I. Middle Ordovician faunas. Journal of the Faculty of Science, the Imperial University of Tokyo, Section 2 3(8):335-519
Belongs to Joleaudella according to P. J. Wagner 2023
See also Kobayashi 1934 and Kobayashi 1958
Sister taxa: Joleaudella argo, Joleaudella catilloides, Joleaudella karki, Joleaudella mansuyi, Joleaudella perstriatus, Joleaudella rotula, Joleaudella sphenonotus, Joleaudella transiens, Joleaudella yimgantauensis
Distribution: found only at Makkol (Ordovician of South Korea)
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.