Asteroceras

Asteroceras
Temporal range: Late Triassic-Early Jurassic
Asteroceras fossil from Dorset, England.
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: †Ammonoidea
Order: †Ammonitida
Family: †Arietitidae
Subfamily: †Asteroceratinae
Genus: †Asteroceras
Hyatt, 1867

Asteroceras (from Ancient Greek ἀστήρ (astḗr), meaning "star", and κέρας (kéras), meaning "horn") is an extinct genus of cephalopod belonging to the Ammonite subclass. These fast-moving nektonic carnivores lived during the Triassic and Jurassic periods (from 205.6 to 189.6 Ma).

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