Zurcheria

Zurcheria is a genus of dwarf ammonites from the Middle Jurassic included in the Hammatoceratidae [2] and lacking a keel. The shell is evolute, inner whorls exposed; whorls compressed and slightly overlapping. Bears ribs, which are sinuous folds that project strongly onto the arched venter.

Zurcheria
Temporal range: Bajocian[1]
↓
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Superfamily:
Hildocerataceae
Family:
Hammatoceratidae
Subfamily:
Zurcheriinae
Genus:
Zurcheria

Douville, 1885

References
Notes
  1. Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Cephalopoda entry)". Bulletins of American Paleontology. 363: 1–560. Archived from the original on 2016-02-25. Retrieved 2017-10-18.
  2. "Paleobiology Database - Zurcheria". Retrieved 2017-10-19.
Bibliography
  • 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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