Hemiarges paulianus

Hemiarges paulianus

via iDigBio · CC0 · 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
HemiargesPBDB
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 most 8.7 million years on record.

Every occurrence read is dated to somewhere between 458.2 Mya and 449.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 7 of 7 occurrencesOrdovician458–458 Mya — about 0.0 occurrences458–458 Mya — about 0.0 occurrences458–457 Mya — about 0.0 occurrences457–457 Mya — about 0.1 occurrences457–457 Mya — about 0.1 occurrences457–456 Mya — about 0.1 occurrences456–456 Mya — about 0.1 occurrences456–456 Mya — about 0.1 occurrences456–455 Mya — about 0.1 occurrences455–455 Mya — about 0.1 occurrences455–455 Mya — about 0.1 occurrences455–454 Mya — about 0.1 occurrences454–454 Mya — about 0.1 occurrences454–454 Mya — about 0.1 occurrences454–454 Mya — about 0.4 occurrences454–453 Mya — about 0.4 occurrences453–453 Mya — about 0.4 occurrences453–453 Mya — about 0.4 occurrences453–452 Mya — about 0.4 occurrences452–452 Mya — about 0.4 occurrences452–452 Mya — about 0.4 occurrences452–451 Mya — about 0.4 occurrences451–451 Mya — about 0.5 occurrences451–451 Mya — about 0.9 occurrences451–450 Mya — about 0.9 occurrences450–450 Mya — about 0.3 occurrences450–450 Mya — about 0.1 occurrences450–449 Mya — about 0.0 occurrences458.7 Mya449 Mya

7 occurrences of Hemiarges paulianus 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

7 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

5 formations

Verulam — 44.60°N, 78.97°WVerulam — 44.43°N, 78.78°WVerulam — 44.55°N, 78.75°WMifflin — 42.00°N, 90.00°WWhittaker — 62.00°N, 127.00°WKimmswick — 38.32°N, 90.38°WShipshaw — 48.64°N, 71.20°W

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The named rock units Hemiarges paulianus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Hemiarges paulianus and its relatives

Ordovician

Where Hemiarges paulianus and its relatives were recorded in the Ordovician.

Found in the same rock

168 taxa

The Paleobiology Database records 7 sites for Hemiarges paulianus, 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

5 references

Each of the 7 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 content1

Picture of Hemiarges paulianus

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Hemiarges paulianus 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 itHemiarges through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Clarke 1894)