''Paciphacops'' is a genus of trilobites within order

Phacopida Phacopida ("lens-face") is an order of trilobites that lived from the Late Cambrian to the Late Devonian. It is made up of a morphologically diverse assemblage of taxa in three related suborders. Characteristics Phacopida had 8 to 19 thoraci ...

, suborder Phacopina. This genus is found primarily in the United States and Australia and is easily mistaken for the genera ''

Phacops ''Phacops'' is a genus of trilobites in the order Phacopida, family Phacopidae, that lived in Europe, northwestern Africa, North and South America and China from the Late Ordovician until the very end of the Devonian, with a broader time range ...

'' and ''

Kainops ''Kainops'' is a genus of trilobites from the family Phacopidae, order Phacopida. It can be distinguished from ''Paciphacops'' by the greater number of facets to the eye (6–8 per row, compared to 3–4 in ''Paciphacops''). The form of the furro ...

'', which are also popular among collectors. One major difference between ''Paciphacops'' and ''Phacops'' is that the central raised area (or

glabella The glabella, in humans, is the area of skin between the eyebrows and above the nose. The term also refers to the underlying bone that is slightly depressed, and joins the two brow ridges. It is a cephalometric landmark that is just superior ...

) of the headshield (or

cephalon Cephalon, Inc. was an American biopharmaceutical company co-founded in 1987 by pharmacologist Frank Baldino Jr., Frank Baldino, Jr., neuroscientist Michael Lewis, and organic chemist James C. Kauer—all three former scientists with the DuPont ...

) extends beyond the headshield's anterior margin. A major difference between ''Paciphacops'' and ''Kainops'' is the greater number of eye facets in ''Kainops''. The skin (or sclera) of the visual surface in ''Paciphacops'' is thickened and bulged compared to the edge of each lens.

Species

A subset of the currently valid species of ''Paciphacops'' is below. The geographic region designated below for each species does not necessarily represent the entire geographic range for each species. *'' Paciphacops birdsongensis'', Tennessee. *''

Paciphacops campbelli ''Paciphacops'' is a genus of trilobites within order Phacopida, suborder Phacopina. This genus is found primarily in the United States and Australia and is easily mistaken for the genera ''Phacops'' and ''Kainops'', which are also popular among ...

'', Oklahoma. *'' Paciphacops claviger'', Nevada. *'' Paciphacops logani'', Oklahoma. *'' Paciphacops crosslei'', Australia. *'' Paciphacops latigenalis'', Australia.

References

Phacopidae Devonian trilobites of North America Trilobites of Australia Phacopida genera {{phacopida-stub