Biology:Fissilobiceras

Short description: Genus of molluscs (fossil)

Fissilobiceras Temporal range: Bajocian PreЄ Є O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Family:	†Hammatoceratidae
Subfamily:	†Hammatoceratinae
Genus:	†Fissilobiceras Buckman, 1919

Fissilobiceras ist ein glatter, komprimierter, involuter Ammonit aus dem unteren mittleren Jura (Aalenium/Bajocium) Europas, der 1919 von Buckman benannt wurde. Fissilobiceras gehört zur Familie der Hildoceratoiden (Hammatoceratidae).

Fissilobiceras is similar to Shirbuirnia, 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

• 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]
• Buckman, S.S., 1909–1930. Yorkshire Type Ammonites, weitergeführt als Typ Ammonites. London und Thame. 1–7 (790 pls).

Wikidata ☰ Q5455230 entry