Zurcherella
Extinct genus of molluscs
From Wikipedia, the free encyclopedia
Zurcherella is a Lower Cretaceous (Upper Barremian - Upper Aptian desmoceratid ammonite from France and Colombia (Apón and Yuruma Formations, 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 | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Family: | †Desmoceratidae |
| Genus: | †Zurcherella Casey, 1934 |
| Species | |
| |
Zurcherella is the earliest of the desmoceratid subfamily Beudanticeratinae, which includes among others, Uhligella, Beudanticeras, and Beudantiella.