Superfamily Turrilitaceae Rank Species | Subclass Ammonites | |
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Similar Turrilites, Ammonites, Schloenbachia, Tissotia, Virgatites | ||
Turrilites costatus is a species of helically coiled ammonoid cephalopod, from the lower part of the Upper Cretaceous (Cenomanian).
Description
The shell of this species can reach a length of about 11 centimetres (4.3 in). It is tightly wound in a high trochospiral, with an acute angle at the apex. Ribs are weak, with rows of strong tubercles.
References
Turrilites costatus Wikipedia(Text) CC BY-SA