Hemiarges

Hemiarges

via iDigBio · 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
TrochurinaePBDB
Diet
carnivorePBDB, for Lichida
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB, for Lichidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 36 million years on record.

The record covers at least 461.1 Mya to 425 Mya. No occurrence read is dated outside 471.3 Mya to 422.7 Mya.

Ordovician — about 64 of 86 occurrencesOrdovicianSilurian — about 22 of 86 occurrencesSilurian472–471 Mya — about 0.5 occurrences471–469 Mya — about 1 occurrence469–467 Mya — about 1 occurrence467–466 Mya — about 1 occurrence466–464 Mya — about 1 occurrence464–462 Mya — about 1 occurrence462–460 Mya — about 2 occurrences460–459 Mya — about 2 occurrences459–457 Mya — about 6 occurrences457–455 Mya — about 8 occurrences455–454 Mya — about 7 occurrences454–452 Mya — about 9 occurrences452–450 Mya — about 10 occurrences450–449 Mya — about 6 occurrences449–447 Mya — about 2 occurrences447–445 Mya — about 2 occurrences445–444 Mya — about 2 occurrences444–442 Mya — about 5 occurrences442–440 Mya — about 5 occurrences440–439 Mya — about 2 occurrences434–432 Mya — about 0.9 occurrences432–430 Mya — about 2 occurrences430–428 Mya — about 2 occurrences428–427 Mya — about 2 occurrences427–425 Mya — about 1 occurrence425–423 Mya — about 2 occurrences423–422 Mya — about 0.7 occurrences461.1 Mya425 Mya472 Mya422 Mya

86 occurrences of Hemiarges on record, most of them in the Ordovician. 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

86 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

35 formations

Whittaker — 62.00°N, 127.00°WWhittaker — 61.52°N, 124.87°WWhittaker — 62.47°N, 124.85°WWhittaker — 63.28°N, 125.35°WWhittaker — 61.48°N, 125.05°WWhittaker — 62.46°N, 124.88°WEsbataottine — 62.00°N, 127.00°WEsbataottine — 61.63°N, 125.75°WEsbataottine — 61.63°N, 125.73°WEsbataottine — 61.72°N, 125.93°WMulloch Hill — 55.28°N, 4.74°WBalclatchie — 55.24°N, 4.78°WBalclatchie — 55.31°N, 4.80°WVerulam — 44.75°N, 79.33°WVerulam — 44.60°N, 78.97°WVerulam — 44.43°N, 78.78°WVerulam — 44.55°N, 78.75°WMotol — 50.08°N, 14.47°EMotol — 49.77°N, 13.25°EMotol — 49.97°N, 14.13°EStinchar Limestone — 55.20°N, 4.75°WArdwell Farm — 55.25°N, 4.85°WArdwell Farm — 55.22°N, 4.77°WKirkley Bank — 54.43°N, 2.78°WDelorme — 62.77°N, 125.25°WKimmswick — 38.32°N, 90.38°WHigh Mains — 55.78°N, 4.19°WWoodland — 55.22°N, 4.88°WNewlands Farm — 55.28°N, 4.74°WCraighead — 55.27°N, 4.78°WEdinburg — 39.00°N, 78.38°WKings Falls — 43.21°N, 75.46°WHanson Creek — 39.38°N, 116.14°WCape Phillips — 75.13°N, 95.00°WWhite Head — 48.47°N, 64.32°WTorgu — 58.12°N, 22.21°EMifflin — 42.00°N, 90.00°WSunblood, Esbataottine — 62.00°N, 127.00°WEsbataottine & Sunblood — 62.00°N, 127.00°W

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The named rock units Hemiarges has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 further formations hold fewer occurrences each and are not listed. 5 occurrences have no formation on record, which is common for older literature.

Hemiarges and its relatives

Ordovician

Where Hemiarges and its relatives were recorded in the Ordovician.

Found in the same rock

877 taxa

The Paleobiology Database records 75 sites for Hemiarges, 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

37 references

Each of the 86 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. 25 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 Hemiarges

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Hemiarges 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.

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

Keep going

What may have been alongside itTrochurinae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gürich 1901