Tremanotidae is an extinct family of Paleozoic fossil molluscs with isostrophically coiled shells. They occupy an uncertain position taxonomically: it is not known whether they were (gastropods (snails) or monoplacophorans.
The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005 categorizes Tremanotidae in the superfamilia Bellerophontoidea within the Paleozoic molluscs of uncertain systematic position with isostrophically coiled shells (Gastropoda or Monoplacophora). This family has no subfamilies.
Genera in the family Tremanotidae include:
Tremanotus Hall, 1867 - type genus of the family Tremanotidae. Synonyms: Gyrotrema, Tremagyrus.Tremanotus angustata - synonym: Tremanotus alpheus.Tremanotus aymestriensisTremanotus chicagoensisTremanotus civisTremanotus compressusTremanotus crassolareTremanotus cyclocostatusTremanotus deficiensTremanotus dilatatus - synonym: Tremanotus girvanensis.Tremanotus inopinataTremanotus minutusTremanotus nautiloideaTremanotus nobileTremanotus parvusTremanotus pervolutaTremanotus planorbisTremanotus plicosumTremanotus polygyratusTremanotus portlockiTremanotus pritchardiTremanotus serpentinusTremanotus trigonostomaTremanotus tuboidesBoiotremus Horný, 1962Boiotremus beraunensisBoiotremus caelatusBoiotremus distansBoiotremus fortisBoiotremus kosovensisBoiotremus longitudinalis (Lindström, 1884) - synonyms: Tremanotus longitudinalis, Tremanotus incipiensGoniotremus Horný, 1992Goniotremus insectus - synonym: Goniotremus polygonus.Goniotremus involutus
