Paciphacops

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 collectors. One major difference between Paciphacops and Phacops is that the central raised area of the headshield 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 of the visual surface in Paciphacops is thickened and bulged compared to the edge of each lens.

Paciphacops

Daderot · CC0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
PhacopidaePBDB
Diet
carnivorePBDB, for Phacopina
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB, for Phacopidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 29 million years on record.

The record covers at least 422.7 Mya to 393.47 Mya. No occurrence read is dated outside 443.1 Mya to 387.95 Mya.

Ordovician — about 0 of 19 occurrencesSilurian — about 6 of 19 occurrencesSilurianDevonian — about 13 of 19 occurrencesDevonian444–442 Mya — about 0.0 occurrences442–440 Mya — about 0.1 occurrences440–438 Mya — about 0.1 occurrences438–437 Mya — about 0.1 occurrences437–435 Mya — about 0.1 occurrences435–433 Mya — about 0.1 occurrences433–431 Mya — about 0.4 occurrences431–429 Mya — about 0.4 occurrences429–427 Mya — about 0.4 occurrences427–425 Mya — about 0.8 occurrences425–423 Mya — about 0.8 occurrences423–421 Mya — about 1 occurrence421–419 Mya — about 2 occurrences419–417 Mya — about 2 occurrences417–416 Mya — about 2 occurrences416–414 Mya — about 2 occurrences414–412 Mya — about 2 occurrences412–410 Mya — about 1 occurrence410–408 Mya — about 0.4 occurrences408–406 Mya — about 0.4 occurrences406–404 Mya — about 0.4 occurrences404–402 Mya — about 0.4 occurrences402–400 Mya — about 0.4 occurrences400–398 Mya — about 0.2 occurrences398–396 Mya — about 0.1 occurrences396–394 Mya — about 0.1 occurrences394–393 Mya — about 0.2 occurrences393–391 Mya — about 0.3 occurrences391–389 Mya — about 0.3 occurrences389–387 Mya — about 0.1 occurrences422.7 Mya393.47 Mya444 Mya387 Mya

19 occurrences of Paciphacops on record, most of them in the Devonian. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

19 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Found in

9 formations

Los Espejos — 30.25°S, 68.75°WLos Espejos — 30.00°S, 69.00°WLos Espejos — 30.22°S, 68.88°WRoss — 36.00°N, 88.00°WHaragan — 34.50°N, 96.50°WBois d'Arc — 34.50°N, 96.50°WCatavi — 17.40°S, 66.15°WKhulmunuur — 46.30°N, 93.90°EGlenerie Limestone — 42.02°N, 73.98°WTalacasto — 31.04°S, 68.78°WYeringberg — 37.78°S, 145.53°E

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The named rock units Paciphacops has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Paciphacops and its relatives

Devonian

Where Paciphacops and its relatives were recorded in the Devonian.

Found in the same rock

241 taxa

The Paleobiology Database records 18 sites for Paciphacops, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

11 references

Each of the 19 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content2

Picture of Paciphacops

Credit
Daderot
Licence
CC0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itPhacopidae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Maksimova 1971