Asteroceras

Asteroceras 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).[1]

Asteroceras
Temporal range: Late Triassic-Early Jurassic 205.6–189.6 Ma[1]
Asteroceras fossil from Dorset, England.
Illustration of Asteroceras species
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: †Ammonoidea
Order: †Ammonitida
Family: †Arietitidae
Subfamily: †Asteroceratinae
Genus: †Asteroceras
Hyatt, 1867

Species
  • Asteroceras blakei Spath 1925
  • Asteroceras confusum Spath, 1925
  • Asteroceras obtusum (Sowerby, 1817)
  • Asteroceras reynesi Fucini 1903
  • Asteroceras saltriensis Parona 1896
  • Asteroceras smithii (Sowerby, 1814)
  • Asteroceras stellare (Sowerby 1815)
  • Asteroceras turneri (Sowerby, 1814)

[1][2]

Distribution

Asteroceras fossils may be found in the Jurassic marine strata of Canada, China, Germany, Hong Kong, Hungary, Peru, and Turkey, in the Triassic of United States and at Lyme Regis in the Asteroceras obtusum zone of Upper Sinemurian age.[3][1]

References
  1. Paleobiology Database - Asteroceras. 2014-05-29.
  2. Biolib
  3. Martell, D. M. 1995. An Ichthyosaur with Preserved Soft Tissue from the Sinemurian of Southern England. Palaeontology. 38(4): 897-903


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