Rasenia
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| Rasenia | |
|---|---|
| Fossil shell of Rasenia cymodoce from Calvados (France), on display at Galerie de paléontologie et d'anatomie comparée in Paris | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Family: | †Aulacostephanidae |
| Genus: | †Rasenia Salfeld, 1913 |
Rasenia is an extinct ammonoid cephalopod genus belonging to the superfamily Perisphinctoidea. These fast-moving nektonic carnivores lived during the Upper Jurassic period, in the Kimmeridgian and Tithonian ages.[1]
This genus gets its name from Market Rasen in Lincolnshire, England, where it is frequently found.