Isotelus gigas

Isotelus gigas

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
IsotelusPBDB
Diet
carnivorePBDB, for Trilobita
Life habit
low-level epifaunalPBDB, for Asaphida
Motility
fast-movingPBDB, for Asaphida
Vision
well-developedPBDB, for Asaphidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 8.7 million years on record.

The record covers at least 458.2 Mya to 449.5 Mya. No occurrence read is dated outside 471.3 Mya to 443.1 Mya.

Ordovician — about 107 of 107 occurrencesOrdovicianSilurian — about 0 of 107 occurrences472–471 Mya — about 0.1 occurrences471–470 Mya — about 0.2 occurrences470–469 Mya — about 0.2 occurrences469–468 Mya — about 0.2 occurrences468–467 Mya — about 0.2 occurrences467–466 Mya — about 0.2 occurrences466–465 Mya — about 0.2 occurrences465–464 Mya — about 0.2 occurrences464–463 Mya — about 0.2 occurrences463–462 Mya — about 0.2 occurrences462–461 Mya — about 0.2 occurrences461–460 Mya — about 0.2 occurrences460–459 Mya — about 0.2 occurrences459–458 Mya — about 0.2 occurrences458–457 Mya — about 1.0 occurrences457–456 Mya — about 8 occurrences456–455 Mya — about 8 occurrences455–454 Mya — about 8 occurrences454–453 Mya — about 11 occurrences453–452 Mya — about 14 occurrences452–451 Mya — about 14 occurrences451–450 Mya — about 15 occurrences450–449 Mya — about 13 occurrences449–448 Mya — about 3 occurrences448–447 Mya — about 3 occurrences447–446 Mya — about 3 occurrences446–445 Mya — about 3 occurrences445–444 Mya — about 0.6 occurrences444–444 Mya — about 0.6 occurrences444–443 Mya — about 0.3 occurrences458.2 Mya449.5 Mya471.9 Mya442.5 Mya

107 occurrences of Isotelus gigas 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

107 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

34 formations

Denley Limestone — 43.21°N, 75.46°WDenley Limestone — 44.00°N, 75.00°WDenley Limestone — 43.28°N, 75.14°WDenley Limestone — 43.00°N, 75.00°WDenley Limestone — 43.88°N, 75.49°WDunleith — 42.00°N, 90.50°WVerulam — 44.60°N, 78.97°WVerulam — 44.50°N, 78.58°WVerulam — 44.45°N, 78.70°WVerulam — 44.52°N, 78.97°WVerulam — 44.43°N, 78.78°WRust — 43.28°N, 75.14°WWaynesville — 39.35°N, 85.10°WWaynesville — 39.58°N, 84.95°WWaynesville — 45.75°N, 81.60°WWaynesville — 43.59°N, 79.72°WWaynesville — 45.91°N, 81.89°WWaynesville — 45.36°N, 75.37°WWise Lake — 44.98°N, 93.27°WWise Lake — 42.00°N, 90.50°WBobcaygeon — 44.67°N, 78.80°WBobcaygeon — 44.53°N, 78.55°WLorraine — 46.22°N, 72.62°WLorraine — 45.38°N, 75.60°WLorraine — 45.56°N, 73.18°WGuttenberg — 42.00°N, 90.00°WGuttenberg — 42.00°N, 90.50°WSpechts Ferry — 42.00°N, 90.00°WSpechts Ferry — 42.00°N, 90.50°WProsser Limestone — 44.98°N, 93.27°WDubuque — 44.98°N, 93.27°WDubuque — 42.00°N, 90.50°WScales Shale — 44.98°N, 93.27°WScales Shale — 42.00°N, 90.50°WIon — 42.00°N, 90.50°WLindsay — 45.50°N, 81.00°WLindsay — 44.58°N, 78.98°WLexington Limestone — 38.00°N, 84.67°WLexington Limestone — 37.65°N, 84.95°WMartinsburg — 40.48°N, 76.53°WMartinsburg — 41.74°N, 74.18°WSugar River Limestone — 44.00°N, 75.00°WSugar River Limestone — 43.00°N, 75.00°WKimmswick limestone — 39.05°N, 90.66°WKimmswick limestone — 38.32°N, 90.38°WVauréal — 49.67°N, 63.00°WLexington — 37.79°N, 84.50°WDolgeville Facies — 43.21°N, 75.46°WMaquoketa — 43.61°N, 92.43°W

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The named rock units Isotelus gigas has been recovered from, largest first. Drawn where the rock is now, not where it formed. 10 further formations hold fewer occurrences each and are not listed. 1 occurrence has no formation on record, which is common for older literature.

Isotelus gigas and its relatives

Ordovician

Where Isotelus gigas and its relatives were recorded in the Ordovician.

Found in the same rock

730 taxa

The Paleobiology Database records 107 sites for Isotelus gigas, 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

24 references

Each of the 107 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. 12 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 content2

Picture of Isotelus gigas

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

3D model

Source
Sketchfab
Licence
CC0 Public Domain
Commercial use
the licence allows it

Smithsonian Open Access was 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 itIsotelus through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Dekay 1824)