Saxoceras

Saxoceras; Temporal range: Hettangian PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	Ammonoidea
Order:	Ammonitida
Superfamily:	Psiloceratoidea
Family:	Schlotheimiidae
Genus:	Saxoceras; Lang, 1924
Species
	Wright, 1881;

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

The shell of Saxoceras is discoidal, bearing strong, generally straight ribs that arise on the umbilical shoulder and thicken in the middle of the venter. Similar Waehneroceras has ribs that curve forward as they approach the venter, and has finer ribs with secondaries. Both are also evolute schlotheimiids with all whorls exposed. 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[]

^ Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2017-10-16.
^ ^a ^b 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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[Sepkoski_Ceph-1] Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2017-10-16.

[paleodb-2] Paleobiology Database - Saxoceras. 2017-10-16.

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[2]