Fissilobiceras
Fissilobiceras Temporal range:
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | †Ammonoidea |
Order: | †Ammonitida |
Family: | †Hammatoceratidae |
Subfamily: | † |
Genus: | †Fissilobiceras Buchman, 1919 |
Fissilobiceras is a smooth, compressed, involute ammonite from the lower Middle Jurassic of Europe, named by Buchman in 1919. It is assigned to the hildoceratoid family, Hammatoceratidae.
Fissilobiceras is similar to , except primarily for being more involute and having complex sutures. More of the inner whorls show in Shirbuirnia and its sutures are simple. Fissilobiceras also has a low keel running along the venter and only a small part of the inner whorls are exposed in the small umbilicus.
References[]
This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. (July 2014) |
- Arkell et al., 1957. Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology Part L, Ammonoiea. Geological Society of America and University of Kansas Press.
- Jack Sepkoski's Online Genus Database, 2002 [1]
Categories:
- Hammatoceratidae
- Ammonitida genera
- Middle Jurassic ammonites of Europe
- Bajocian life
- Ammonitina stubs
- Jurassic animal stubs