Ringsteadia Temporal range:
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | †Ammonoidea |
Order: | †Ammonitida |
Family: | †Aulacostephanidae |
Genus: | †Ringsteadia Salfeld, 1913 |
France, Germany, the Russian Federation and the United Kingdom [2]