Eophacops

Eophacops is a genus of trilobites from the order Phacopida, family Phacopidae. These trilobites lived during the Middle Silurian in what are now North America and North-West Europe. Species assigned to this genus can be distinguished from Phacops by their small size (2–3 cm). Eophacops has very large eyes compared to the rest of its body.

Eophacops

via iDigBio · CC BY-NC-ND · via iDigBio. 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 21 million years on record.

The record covers at least 443.1 Mya to 421.6 Mya. No occurrence read is dated outside 451 Mya to 419.62 Mya.

Ordovician — about 2 of 48 occurrencesOrdovicianSilurian — about 46 of 48 occurrencesSilurianDevonian — about 0 of 48 occurrences452–451 Mya — about 0.1 occurrences451–449 Mya — about 0.3 occurrences449–448 Mya — about 0.3 occurrences448–447 Mya — about 0.3 occurrences447–446 Mya — about 0.3 occurrences446–445 Mya — about 0.3 occurrences445–444 Mya — about 0.5 occurrences444–443 Mya — about 0.7 occurrences443–442 Mya — about 2 occurrences442–441 Mya — about 2 occurrences441–440 Mya — about 1.0 occurrences440–439 Mya — about 0.7 occurrences439–437 Mya — about 0.9 occurrences437–436 Mya — about 0.9 occurrences436–435 Mya — about 0.9 occurrences435–434 Mya — about 0.9 occurrences434–433 Mya — about 0.9 occurrences433–432 Mya — about 3 occurrences432–431 Mya — about 3 occurrences431–430 Mya — about 3 occurrences430–429 Mya — about 4 occurrences429–428 Mya — about 4 occurrences428–427 Mya — about 4 occurrences427–426 Mya — about 5 occurrences426–424 Mya — about 4 occurrences424–423 Mya — about 2 occurrences423–422 Mya — about 2 occurrences422–421 Mya — about 1 occurrence421–420 Mya — about 0.9 occurrences420–419 Mya — about 0.4 occurrences443.1 Mya421.6 Mya451.6 Mya419 Mya

48 occurrences of Eophacops on record, most of them in the Silurian. 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

48 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

22 formations

Motol — 49.95°N, 12.93°EMotol — 49.95°N, 14.22°EMotol — 50.00°N, 17.78°EMotol — 49.77°N, 13.25°EMotol — 50.08°N, 14.47°EMotol — 49.97°N, 14.13°EKopanina — 49.95°N, 12.93°EKopanina — 50.03°N, 14.32°EKopanina — 49.96°N, 14.18°EKopanina — 50.08°N, 14.47°ERacine — 43.05°N, 88.01°WRacine — 42.88°N, 88.04°WRacine Dolomite — 41.67°N, 88.00°WRacine Dolomite — 43.00°N, 88.00°WRacine Dolomite — 38.97°N, 90.43°WTernava Suite — 51.82°N, 34.22°ETernava Suite — 48.87°N, 26.53°ESt. Clair Limestone — 35.77°N, 91.63°WWhite Head — 48.50°N, 64.23°WNeahga Shale — 36.68°N, 83.13°WBeaverfoot-Brisco — 50.45°N, 115.77°WKlinteberg Beds — 57.53°N, 18.43°EEke Beds — 57.17°N, 18.38°EVrublevtsy Subsuite — 48.55°N, 26.82°ESugar Run Dolomite — 41.67°N, 88.00°WScotch Grove — 42.00°N, 92.00°WVargas Pena Shale — 25.38°S, 57.27°WCape Phillips — 75.80°N, 94.50°WShoul Limestone — 34.03°N, 6.85°WFukata — 33.53°N, 133.22°EKaugatuma — 58.12°N, 22.19°EMoyerokan — 67.31°N, 103.83°EAgidyl — 67.35°N, 104.04°EKhaastyrka — 67.32°N, 103.85°E

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The named rock units Eophacops has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.

Eophacops and its relatives

Silurian

Where Eophacops and its relatives were recorded in the Silurian.

Found in the same rock

798 taxa

The Paleobiology Database records 47 sites for Eophacops, 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

23 references

Each of the 48 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. 11 further references are not listed. 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 content1

Picture of Eophacops

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC-ND
Commercial use
the licence does not allow it

No 3D scan of Eophacops was found in Sketchfab.

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

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 SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Delo 1935