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Fossil collection records
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Classification of Peach et al. 1907
G. †
Pleurotomaria
Defrance 1826
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†
Pleurotomaria ramsayi
Billings 1859
Subg. †
Murchisonia (Hormotoma)
Salter 1859
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Murchisonia (Hormotoma) gracillima
Murchison 1859