Blanfordiceras

Blanfordiceras is a strongly ribbed, evolute ammonite included in the perisphinctacean family, Neocomitidae that lived during the latest Jurassic. The shell of Blanfordiceras is discoidal, coiled evolutely with all whorls visible so as to have a broad umbilicus. Exposed whorls are ornamented with strong ribbing that arises from the umbilicus, bifurcating on the outer flanks and extending onto the venter. In general form Blanfordiceras is similar to Berriasella, although with a more rounded whorl section.

Blanfordiceras Temporal range: 145.5–140.2 Ma[1] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Family:	†Neocomitidae
Subfamily:	†Berriasellinae
Genus:	†Blanfordiceras Crossman, 1907
Species [1]
Blanfordiceras acuticosta Uhlig 1910 Blanfordiceras applanatum Uhlig 1910 Blanfordiceras boehmi Uhlig 1910 Blanfordiceras cricki Uhlig 1910 Blanfordiceras latidomus Uhlig 1910 Blanfordiceras muktinathense Helmstaedt 1969 Blanfordiceras rotundidoma Uhlig 1910 Blanfordiceras subquadratum Uhlig 1910 Blanfordiceras tenuicostatum Collignon 1960 Blanfordiceras wallichi Gray 1832

References

Notes

1. "Paleobiology Database - Blanfordiceras". Retrieved 2017-10-19.

Bibliography

• Arkell, W.J.; Kummel, B.; Wright, C.W. (1957). Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Lawrence, Kansas: Geological Society of America and University of Kansas Press. p. L352.