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.[1]

Pleuroceras spinatum
Temporal range: Lower Jurassic, 189.6–183 Ma [1]
Fossil shells of Pleuroceras spinatum from Lyme Regis (England), on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification Edit this 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

Description

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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. [1]

Distribution

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Fossils of this species have been found in the Jurassic of France, Germany, Hungary, Italy, Serbia and Montenegro, Spain and United Kingdom.[1]

References

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