Biology:Pleuroceras spinatum

Short description: Species of ammonite (fossil)

Pleuroceras spinatum Temporal range: Lower Jurassic, 189.6–183 Ma PreЄ Є O S D C P T J K Pg N
Fossil shells of Pleuroceras spinatum from Lyme Regis (England), on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Family:	†Amaltheidae
Genus:	†Pleuroceras
Species:	†P. spinatum
Binomial name
†Pleuroceras spinatum Bruguière 1789
Synonyms
Ammonites costatus Schlotheim, 1820 Ammonites franconicus Schlotheim, 1813

Pleuroceras spinatum is a species of ammonite from the lower Jurassic, upper Pliensbachian period (189.6 ± 1.5 – 183.0 ± 1.5 Mya). Species of this genus were fast-moving nektonic carnivore.

Description

Shell of Pleuroceras spinatum can reach a diameter of about 45–54 millimetres (1.8–2.1 in).These ammonites have a planulate shell with a quadrate whorl section, bearing strong radial ribs ending in ventro-lateral tubercles. The venter is tabulate with a strong serrated keel.

Distribution

Fossils of this species have been found in the Jurassic of France, Germany, Hungary, Italy, Serbia and Montenegro, Spain and United Kingdom.

External links

• Ammonites

Wikidata ☰ Q18392641 entry