Altudoceras is a genus belonging to the Pseudogastrioceratinae subfamily. They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopuses, and cuttlefish, and more distantly to the nautiloids.

Altudoceras
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Goniatitida
Family: Paragastrioceratidae
Subfamily: Pseudogastrioceratinae
Genus: Altudoceras

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