Tremanotidae is an extinct family

Family

In human context, a family is a group of people affiliated by consanguinity, affinity, or co-residence. In most societies it is the principal institution for the socialization of children...

 of paleozoic molluscs of uncertain position (Gastropoda

Gastropoda

The Gastropoda or gastropods, more commonly known as snails and slugs, are a large taxonomic class within the phylum Mollusca. The class Gastropoda includes snails and slugs of all kinds and all sizes from microscopic to quite large...

 or Monoplacophora

Monoplacophora

Monoplacophora, meaning "bearing one plate", is a polyphyletic class of mollusks with a cap-like shell, living on the bottom of deep sea. Extant representatives were unknown until 1952; previously they were known only from the fossil record.- Definition :...

) with isostrophically coiled shells.

Taxonomy

The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005

Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005)

The taxonomy of the Gastropoda as it was revised by Philippe Bouchet and Jean-Pierre Rocroi is currently the most up-to-date overall system for classifying gastropod mollusks...

 categorizes Tremanotidae in the superfamilia Bellerophontoidea

Bellerophontoidea

The Bellerophontoidea, , common name "bellerophonts", is a superfamily of extinct planospirally coiled globose molluscs, generally included in the Gastropoda that first appeared late in the Cambrian and continued until late in the Triassic.-Biology:Unlike normal gastropods, the shells of...

 within the
Paleozoic molluscs of uncertain systematic position with isostrophically coiled shells (Gastropoda or Monoplacophora). This family has no subfamilies.

Genera

Genera in the family Tremanotidae include:

• Tremanotus Hall
  James Hall (paleontologist)
  James Hall was an American geologist and paleontologist. He was a noted authority on stratigraphy and had an influential role in the development of American paleontology.-Early life:...
  
  , 1867 - type genus
  Type genus
  In biological classification, a type genus is a representative genus, as with regard to a biological family. The term and concept is used much more often and much more formally in zoology than it is in botany, and the definition is dependent on the nomenclatural Code that applies:* In zoological...
  
   of the family Tremanotidae. Synonyms: Gyrotrema, Tremagyrus.
  • Tremanotus angustata - synonym: Tremanotus alpheus.
  • Tremanotus aymestriensis
  • Tremanotus chicagoensis
  • Tremanotus civis
  • Tremanotus compressus
  • Tremanotus crassolare
  • Tremanotus cyclocostatus
  • Tremanotus deficiens
  • Tremanotus dilatatus - synonym: Tremanotus girvanensis.
  • Tremanotus inopinata
  • Tremanotus minutus
  • Tremanotus nautiloidea
  • Tremanotus nobile
  • Tremanotus parvus
  • Tremanotus pervoluta
  • Tremanotus planorbis
  • Tremanotus plicosum
  • Tremanotus polygyratus
  • Tremanotus portlocki
  • Tremanotus pritchardi
  • Tremanotus serpentinus
  • Tremanotus trigonostoma
  • Tremanotus tuboides
• Boiotremus Horný, 1962
  • Boiotremus beraunensis
  • Boiotremus caelatus
  • Boiotremus distans
  • Boiotremus fortis
  • Boiotremus kosovensis
  • Boiotremus longitudinalis (Lindström, 1884) - synonyms: Tremanotus longitudinalis, Tremanotus incipiens
• Goniotremus Horný, 1992
  • Goniotremus insectus - synonym: Goniotremus polygonus.
  • Goniotremus involutus