Classification of Yin and Yochelson 1983

G. †Discohelix Dunker 1847
show all | hide all
Subg. †Discohelix (Discogonius) Yin and Yochelson 1983
hide
†Discohelix (Discogonius) subvenusta Yin and Yochelson 1983
G. †Triassocirrus Yin and Yochelson 1983
show all | hide all
†Triassocirrus applanatus Kutassy 1937
†Triassocirrus guizhouensis Yin and Yochelson 1983
†Triassocirrus pichleri Laube 1869
G. †Coelostylina Kittl 1894
show all | hide all
†Coelostylina ahlburgi Assmann 1924
show all | hide all
†Kittliconcha obesa Yu et al. 1974
G. †Omphaloptycha Ammon 1878
show all | hide all
†Omphaloptycha scalaris Yin and Yochelson 1983
show all | hide all
†Polygyrina lommeli Wissmann 1841
G. †Spirostylus Kittl 1894
show all | hide all
†Spirostylus subcolumnaris Münster 1841
G. †Toxoconcha Kittl 1899
show all | hide all
†Toxoconcha brocchi Stoppani 1857
G. †Trypanostylus Cossmann 1895
show all | hide all
†Trypanostylus haueri Giebel 1856
G. †Tyrsoecus
show all | hide all
†Tyrsoecus multinodosa Yin and Yochelson 1983
show all | hide all
†Zygopleura arctecostata Münster 1841
†Zygopleura walmstedti Klipstein 1843
Fm. Neritidae Rafinesque 1815
show all | hide all
G. †Natitaria Koken 1892
hide
†Natitaria candida Kittl 1894
Subg. †Straparollus (Euomphalus) Sowerby 1814
show all | hide all
†Straparollus (Euomphalus) qingyanensis Yin and Yochelson 1983