Astiericeras

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Astiericeras
Temporal range: Albian[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Superfamily:
Ancylocerataceae (?)
Family:
Douvilleiceratidae
Subfamily:
Douvilleiceratinae
Genus:
Astiericeras

Parona & Bonarelli. 1896
Species
  • see text

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Astiericeras is an ammonite from the Lower Cretaceous, the shell of which is evolute, stout; outer whorl with strong, well spaced, transverse ribs that cross smoothly over the broad venter; early whorls with lateral tubercles. The outer, mature whorl separates from the coil but hooks back quickly, referred to as a heteromorph.

Astiericeras is generally considered to be a douvillieceratid,[2] however according to W. J. Kennedy, the genus may instead be a scaphitoid.[3]

References

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  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.

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