Trilobites
Order Lichida (or Order Odontopleurida), Family Odontopleuridae
Geologic Age: Lower Devonian
Trilobite is 27 mm long
Haragan Formation deposits of Coal County, Oklahoma
Comments: Ceratonurus is one of the spectacularly spiny Odontopleurid
trilobites. These spines could have afforded some wonderful defensive postures.
This trilobite is rare. Compare it to Ceratonurus
from Morocco.
Also see:
American Trilobites
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