Lyelliceras

Lyelliceras; Temporal range: Albian; ~109.0–99.7 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Fossil of Lyelliceras lyelli from Peru
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Family:	†Lyelliceratidae
Genus:	†Lyelliceras; Spath, 1921
Species
	See text

Lyelliceras is a genus of ammonites belonging to the family Lyelliceratidae. These cephalopods were fast-moving nektonic carnivores. They lived in the Cretaceous period, Albian stage (109.0 to 99.7 Ma).^[1]^[2]

Etymology

The genus has been named after geologist Charles Lyell.

Description

Shells of Lyelliceras species can reach a diameter of about 50 millimetres (2.0 in). They are moderately to very evolute. The section of the whorls is slightly compressed or circular, with straight radial ribs.^[3]^[4]

Species

The following species have been recognised:^[1]

Lyelliceras escragnollensis Kennedy, 2011
Lyelliceras latili Kennedy and Klinger, 2008
Lyelliceras lyelli (d'Orbigny, 1841)
Lyelliceras pseudolyelli Parona and Bonarelli, 1897
Lyelliceras vaasti Destombes et al., 1973

Distribution

Fossils of species within this genus have been found in the Cretaceous sediments of Colombia (Hiló Formation, Tolima), France, Madagascar, Mexico, Peru, South Africa, United Kingdom, United States and Venezuela.^[1]

References

^ ^a ^b ^c Lyelliceras at Fossilworks.org
^ Sepkoski, Jack Sepkoski's Online Genus Database - Cephalopodes
^ Crioceratites
^ Ammonites

This Ammonitina-related article is a stub. You can help Wikipedia by expanding it.

[fa-1] Lyelliceras at Fossilworks.org

[2] Sepkoski, Jack Sepkoski's Online Genus Database - Cephalopodes

[3] Crioceratites

[4] Ammonites

[1]

[2]

[3]

[4]