| 词条 | Zurcherella |
| 释义 |
|fossil_range = Barremian-Aptian ~{{fossil range|122|112}} |regnum = Animalia |phylum = Mollusca |classis = Cephalopoda |subclassis = Ammonoidea |ordo = Ammonitida |superfamilia = Desmocerataceae |familia = Desmoceratidae |genus = Zurcherella |genus_authority = Casey, 1934 |subdivision_ranks = Species |subdivision =
}} 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 is the earliest of the desmoceratid subfamily Beudanticeratinae, which includes among others, Uhligella, Beutanticeras, and Beutantiella. References1. ^Zurcherella at Fossilworks.org Further reading
10 : 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 |
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