Pleuroceras spinatum

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
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Family:
Amaltheidae
Genus:
Pleuroceras
Species:
†P. spinatum
Binomial name
†Pleuroceras spinatum
Bruguière 1789
Synonyms
  • Ammonites costatus Schlotheim, 1820
  • Ammonites franconicus Schlotheim, 1813

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. [1]

Distribution

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

References
  1. The Paleobiology Database


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