Acanthoceratidae

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Acanthoceratidae
Gasteropods - Ammonites - Mantelliceras tuberculatum.JPG
Mantelliceras tuberculatum
Scientific classification e
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Superfamily: Acanthoceratoidea
Family: Acanthoceratidae
Grossouvre, 1894
Subfamilies

See text

Synonyms
  • Buchiceratidae Hyatt 1903
  • Metoicoceratidae Hyatt 1903

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

Diagnosis[edit]

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[edit]

Acanthoceratidae de Grossouvre 1894 includes the following subfamilies.

References[edit]

  • Wright, W.C. 1957 Family Acanthoceratidae Hyatt in W.J. Arkell, et al. 1957. Mesozoic Ammonoidea;. Treatise on Invertebrate Paleontology, Part L. Geological Society of America, R.C. Moore (ed).
  • The Paleobiology Database