Suvarna Garge

Acanthoceratidae

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Kingdom  Animalia
Scientific name  Acanthoceratidae
Higher classification  Acanthocerataceae
Order  Ammonitida
Superfamily  â€ Acanthoceratoidea
Phylum  Mollusca
Rank  Family
Subclass  Ammonites
Acanthoceratidae
Similar  Ammonites, Acanthoceratoidea, Acanthoceras, Calycoceras, Collignoniceratidae

Acanthoceratidae is an extinct family of acanthoceratoid cephalopods in the order Ammonitida, known from the Upper Cretaceous. The type genus is Acanthoceras.

Contents

Diagnosis

Acanthoceratidae species are strongly tuberculate with at least umbilical and ventrolateral tubercles in most genera included. Ribs are dominant in some, in others weak or absent on the outer whorls. Most are evolute, compressed to very depressed in section. Sutures are ammonitic with little variation, but showing a tendency for simplication in later genera.

Taxonomy

Acanthoceratidae de Grossouvre 1894 includes the following subfamilies.

  • Acanthoceratinae de Groussouvre 1894
  • Euomphaloceratinae Cooper, 1978
  • Mammitinae (Hyatt 1900) (= Fallotitinae Wiedmann 1960; Mitoniainae Renz & Alvarez 1979)
  • Mantelliceratinae Hyatt 1903
  • References

    Acanthoceratidae Wikipedia


    Similar Topics
    Acanthoceratoidea
    Calycoceras
    Collignoniceratidae
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