Trilobites
Order Phacopida, Suborder Phacopina, Superfamily Phacopoidea,
Family Phacopidae
Geologic Age: Lower Devonian
Trilobite is 40 mm long
Haragan Formation, Coal County, Clarita, Oklahoma
Remarks: Paciphacops is distinguished from the similar genus,
Kainops, by the smaller number of schizochroal
eye facets in Pacophacops. Paciphacops also differs from the relativel
common genus Phacops in that the glabella protrudes beyond the trilobites
anterior margin. If you think it looks a lot like the common Reedops
trilobite from Morocco, you would be right; this is because the proximity
of what is now Oklahoma and Morocco during the lower Devonian. During
the Devonian, Gondwana (where modern Morocco was) and Euramerica (where
Oklahoma was) were fairly close, and had adjacent continental shelfs.
The Moroccan site and Oklahoma site also were at
similar latitudes, such that the respective fauna could be similarly
adapted.
Also see: American Trilobites Trilobite Eyes
