Zurcheria
Genus of molluscs (fossil)
Zurcheria Temporal range: Bajocian[1] PreꞒ Ꞓ O S D C P T J K Pg N ↓ | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | †Ammonoidea |
Order: | †Ammonitida |
Family: | †Hammatoceratidae |
Subfamily: | †Zurcheriinae |
Genus: | †Zurcheria Douville, 1885 |
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.
References
- Notes
- 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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