Cardioceras
| Cardioceras Temporal range: Jurassic, 161.2–155.7 Ma | |
|---|---|
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| 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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