Zurcherella
| Zurcherella | |
|---|---|
| Scientific classification | |
| Kingdom: | |
| Phylum: | Mollusca
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| Class: | Cephalopoda
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| Subclass: | |
| Order: | |
| Superfamily: | Desmocerataceae
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| Family: | |
| Genus: | Zurcherella Casey, 1934
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| Species | |
| |
Zurcherella is a Lower Cretaceous (Upper Barremian - Upper Aptian desmoceratid ammonite from France and Colombia (Apón and , La Guajira).[1] Its shell is moderately compressed and rather involute (outer whorls covering most of the inner), with fine sinuous ribs that arise some distance above the umbilical rim. Zurcherella differs from its descendant Uhligella in that in the latter, ribs arise from the umbilical shoulder.
Zurcherella is the earliest of the desmoceratid subfamily Beudanticeratinae, which includes among others, Uhligella, , and .
References[]
- ^ Zurcherella at Fossilworks.org
Further reading[]
- Arkell, et al., 1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L. Geological Society of America and University of Kansas Press. L368.
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Categories:
- Ammonitida
- Early Cretaceous ammonites of Europe
- Fossils of France
- Cretaceous France
- Ammonites of South America
- Fossils of Colombia
- Cretaceous Colombia
- Barremian life
- Aptian life
- Fossil taxa described in 1934
- Ammonite stubs