Perilytoceras

Perilytoceras is a genus of ammonoid cephalopods belonging to the family Lytoceratidae.[1]

Perilytoceras
Temporal range: Upper Toarcian
Fossil shell of Perilytoceras species from Tulear (Madagascar)
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Suborder:
Lytoceratina
Family:
Lytoceratidae
Genus:
Perilytoceras

Rulleau, 1997

These fast-moving nektonic carnivores lived in the Toarcian age (from 182.7 to 174.1 million years ago). Shells could reach a diameter of 20–25 centimetres (7.9–9.8 in).[2]

References
  1. Paleobiology Database
  2. Ammonites


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