Cardioceras

Cardioceras
Temporal range: Jurassic, 161.2–155.7 Ma

[1]

Fossil of Cardioceras persecans from France, on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Kingdom: Animalia
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Superfamily: Stephanocerataceae
Family: Cardioceratidae
Genus: Cardioceras

Cardioceras is an extinct ammonite genus belonging to the family Cardioceratidae.

These fast-moving nektonic carnivores lived during the Jurassic period, Oxfordian age. [2][3]

Description

Shells of Cardioceras species can reach a diameter of 20–25 millimetres (0.79–0.98 in).[4] The shape is circular, with ribs and a prominent ridge along the dorsal edge. [5]

Distribution

Fossils of species within this genus have been found in the Jurassic of France, Germany, Poland, Russia and United Kingdom. [1]

References

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