''Zurcherella'' is a Lower Cretaceous (Upper

Barremian The Barremian is an age in the geologic timescale (or a chronostratigraphic stage) between 129.4 ± 1.5 Ma (million years ago) and 121.4 ± 1.0 Ma). It is a subdivision of the Early Cretaceous Epoch (or Lower Cretaceous Series). It is preceded ...

- Upper

Aptian The Aptian is an age in the geologic timescale or a stage in the stratigraphic column. It is a subdivision of the Early or Lower Cretaceous Epoch or Series and encompasses the time from 121.4 ± 1.0 Ma to 113.0 ± 1.0 Ma (million years ago), a ...

desmoceratid ammonite from France and Colombia ( Apón and Yuruma Formations,

La Guajira La Guajira () is a department of Colombia. It occupies most of the Guajira Peninsula in the northeast region of the country, on the Caribbean Sea and bordering Venezuela, at the northernmost tip of South America. The capital city of the departm ...

).''Zurcherella''
at

Fossilworks Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ...

.org 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 ''Uhligella'' is an extinct cephalopod genus from the Early Cretaceous ( Late Aptian to Early Albian), belonging to the ammonoid subclass and included in the Desmoceratidae. ''Uhligella'' is described as being high-whorled with a broadly or na ...

'' 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''.

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Further reading