Biology:Zurcherella

Zurcherella Temporal range: Barremian-Aptian ~122–112 Ma PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	Ammonoidea
Order:	Ammonitida
Superfamily:	Desmocerataceae
Family:	Desmoceratidae
Genus:	Zurcherella Casey, 1934
Species
Z. zurcheri

Zurcherella is a Lower Cretaceous (Upper Barremian - Upper Aptian desmoceratid ammonite from France and Colombia (Apón and Yuruma Formations, La Guajira). 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.

Further reading

• Arkell, et al., 1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L. Geological Society of America and University of Kansas Press. L368.

Wikidata ☰ Q8075380 entry