Classification of Mudge et al. 1962
G. †Derbyia Waagen 1884
show all | hide all
†Derbyia crassa Meek and Hayden 1858
†Derbyia cymbula Hall and Clarke 1893
†Derbyia hooserensis Dunbar and Condra 1932
†Derbyia wabaunseensis Dunbar and Condra 1932
G. †Dictyoclostus
show all | hide all
†Dictyoclostus huecoensis King 1931
hide
Invalid names: Dictyoclostus americanus Dunbar and Condra 1932 [synonym]
G. †Lissochonetes Dunbar and Condra 1932
show all | hide all
†Lissochonetes geinitzianus Waagen 1884
†Lissochonetes geronticus Dunbar and Condra 1932
G. †Marginifera Waagen 1884
show all | hide all
†Marginifera histricula Dunbar and Condra 1932
†Marginifera lasallensis Worthen 1873
†Marginifera wabashensis Norwood and Pratten 1855
G. †Wellerella Dunbar and Condra 1932
show all | hide all
†Wellerella delicatula Dunbar and Condra 1932
†Wellerella osagensis Shumard and Swallow 1858
†Wellerella truncata Dunbar and Condra 1932
G. †Neospirifer Fredericks 1919
show all | hide all
†Neospirifer dunbari King 1933
†Neospirifer kansasensis Swallow 1866
Subg. †Knightites (Retispira) Knight 1945
show all | hide all
†Knightites (Retispira) tenuilineata Gurley 1884
†Allorisma terminale Hall 1852
show all | hide all
Invalid names: Allorisma subcuneata Meek and Hayden 1858 [synonym]
G. †Linoproductus Chao 1927
show all | hide all
†Linoproductus prattenianus Norwood and Pratten 1855