Saxoceras

Saxoceras is a genus of very evolute schlotheimiid ammonoids from the Lower Jurassic.

Saxoceras
Temporal range: Hettangian[1]
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Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Superfamily:
Psiloceratoidea
Family:
Schlotheimiidae
Genus:
Saxoceras

Lang, 1924
Species [2]
  • Saxoceras portlocki Wright, 1881

The shell of Saxoceras is discoidal bearing strong, generally straight ribs that arise on the umbilical shoulder and thicken on the middle of the venter. Similar Waehneroceras has ribs that curve forward as they approach the venter and Kammerkarites has finer ribs with secondaried. Both are also evolute schlotheimiids with all whorls exposed. Epamminites of the Arietitidae is similar from the side but has a smooth band running along the venter with a median keel.

Distribution

British Columbia, France and Alaska [2]

References
  1. Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2017-10-16.
  2. Paleobiology Database - Saxoceras. 2017-10-16.
  • W. J. Arkell et al., 1957. Mesozoic Ammonoidea, Treatise on invertebrate Paleontology, Part L, Mollusca 4. Geological Society of America and University of Kansas Press.


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