Centipede-Like Crotalocephalina (Crotalocephalus) Moroccan Trilobite

Name: Crotalocephalina (Crotalocephalus) gibbus

Trilobite Order Phacopida, Family Cheiruridae

Geologic Time: Devonian

Size: 75 mm

Fossil Site: Lamrakeb, Alnif , Morocco

Crotalocephalina (Crotalocephalus) Moroccan TrilobiteElegant example of a member of the Order Phacopida, Family Cheiruridae with many fine details present. The most diagnostic features of this taxon are the sharp pleural and pygidial spines and the distinctive cephalon. The describer of this one thought it bore a resemblance to the head of a rattlesnake (Crotalus), hence the genus name. The spines may have aided it in staying at the surface of the soft seafloor. This one is displayed in a sinuous pose as if undulating across its matrix. The name has changed several times, from Crotalocephalus to Crotalocephalina, and recently to Cheirurus, making it hard for the layman to keep up.

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