Haploceras

Haploceras is a genus of late Upper Jurassic (Kimmeridgian and Tithonian) ammonoid cephalopods and the type for the Haploceratidae, similar to Lissoceras but with a broader whorl section and small blunt lappets and a blunt rostrum; some species with feeble ventral folds on body chamber.

Haploceras
Temporal range: Kimmeridgian–Tithonian[1]
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: †Ammonoidea
Order: †Ammonitida
Family: †Haploceratidae
Genus: †Haploceras
Zittel, 1870
Species

See text

Distribution

Jurassic deposites in North America, Africa, Europe and the mid east.[2]

References
  1. Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Cephalopoda entry)". Bulletins of American Paleontology. 363: 1–560. Archived from the original on 2008-05-07. Retrieved 2017-10-18.
  2. "Paleobiology Database - Haploceras". Retrieved 2017-10-19.
  • Arkell et al., 1957 Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology Part L. Geol Society of America and Univ Kansas Press R.C Moore (ed)


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