Kingdom Animalia Family Kosmoceratidae Rank Species Subclass Ammonites | Superfamily Stephanocerataceae Genus Kosmoceras Order Ammonitida | |
 | ||
Similar Kosmoceras, Kossmaticeras, Lytoceras cornucopia, Kosmoceras jason, Ammonites | ||
Kosmoceras spinosum is a moderately evolute ammonite species from the Callovian (Middle Jurassic), lasting between 163.5 and 166.1 Ma.
Shells of Kosmoceras spinosum can reach a diameter of about 22 millimetres (0.87 in).
References
Kosmoceras spinosum Wikipedia(Text) CC BY-SA