Metrolytoceras

Metrolytoceras
Temporal range: Middle Jurassic
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Suborder: Lytoceratina
Family: Lytoceratidae
Genus: Metrolytoceras
Buckman, 1923
Species
  • see text

Metrolytoceras is an extinct cephalopod genus that lived during the Middle Jurassic, characterized by a planispiral evolute shell with smooth middle and outer whorls, flat sides, and simplified sutures.

Metrolytoceras belongs to the ammonoid suborder Lytoceratina, which is typified by having intricate, moss-like sutures, and to the family Lytoceratidae. Its closest relative is Megalytoceras

References