Lytoceras

Lytoceras
Temporal range: from Sinemurian to Cenomanian[1]196.5–99.7 Ma

[2]

Lytoceras fimbriatum
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Lytoceratida
Family: Lytoceratidae
Genus: Lytoceras
Suess, 1865

Lytoceras is an ammonite genus that was extant during most of the Jurassic and Cretaceous periods, and is the type genus for the family Lytoceratidae. These cephalopods were fast-moving nektonic carnivores.

Species

[2]

Description

Shells of Lytoceras are evolute, round or quadrate in section, covered with crinkled growth lines or riblets, and may have slight constrictions on internal molds. Some have fine strigations, (parallel grooves running longitudinally along the flanks).

Distribution

Fossils of species within this genus have been found in the Jurassic and Cretaceous rocks all over the world, particularly in Western Europe, in Madagascar, South Africa and United States. [2]

References

Wikimedia Commons has media related to Lytoceras.
  1. Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2014-05-28.
  2. 1 2 3 The Paleobiology Database
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