Hemilytoceras

Hemilytoceras
Temporal range: Tithonian
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Lytoceratida
Family: Lytoceratidae
Subfamily: Lytoceratinae
Genus: Hemilytoceras
Spath, 1927
Species
  • See text

Hemilytoceras is a lytoceratin ammonite genus with round inner whorls, outer whorls becoming depressed and in some developing high lamellae (ribs) that bend forward over the venter. The type species H. immanae came from the Tithonian of Europe. The genus is known from the overall Upper Jurassic of central and southern Europe, North Africa, and western India.

References

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