Classification of Dunbar and Condra 1932
G. †Chonetinella Ramsbottom 1952
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†Chonetinella flemingi Dunbar and Condra 1932
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†Chonetinella flemingi crassiradiata Dunbar and Condra 1932
G. †Dictyoclostus
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†Dictyoclostus americanus Dunbar and Condra 1932
†Dictyoclostus portlockianus Norwood and Pratten 1855
G. †Juresania Fredericks 1928
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†Juresania nebrascensis Owen 1852
†Juresania ovalis Dunbar and Condra 1932
G. †Lissochonetes Dunbar and Condra 1932
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†Lissochonetes geinitzianus Waagen 1884
G. †Marginifera Waagen 1884
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†Marginifera missouriensis Girty 1915
†Marginifera muricatina Norwood and Pratten 1855
G. †Mesolobus Dunbar and Condra 1932
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†Mesolobus mesolobus Norwood and Pratten 1855
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†Mesolobus mesolobus decipiens Girty 1912
†Mesolobus mesolobus euampygus Girty 1912
†Mesolobus mesolobus lioderma Dunbar and Condra 1932
G. †Wellerella Dunbar and Condra 1932
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†Wellerella tetrahedra Dunbar and Condra 1932
G. †Composita Brown 1849
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†Composita elongata Dunbar and Condra 1932
†Composita ovata Mather 1915
G. †Neospirifer Fredericks 1919
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†Neospirifer cameratus Morton 1836
†Neospirifer goreii Mather 1915
†Neospirifer latus Dunbar and Condra 1932
G. †Linoproductus Chao 1927
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†Linoproductus meniscus Dunbar and Condra 1932
†Linoproductus prattenianus Norwood and Pratten 1855