Ptychatractidae
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[edit]
Taxonavigation: Turbinelloidea |
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Superregnum: Eukaryota |
Familia: Ptychatractidae
Genera (5):
Egestas –
Exilia –
Exilioidea –
Metzgeria –
Ptychatractus
Name[edit]
Ptychatractidae Stimpson, 1865