Trilobita indet.

A picture published with the record for Trilobita indet.. What it shows has not been checked.

Smithsonian Institution · CC0 · via Smithsonian. 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.

Time the record covers

At least 246 million years on record.

The record covers at least 521 Mya to 274.4 Mya. No occurrence read is dated outside 538.8 Mya to 251.902 Mya.

Cambrian — about 207 of 1066 occurrencesCambrianOrdovician — about 349 of 1066 occurrencesOrdovicianSilurian — about 166 of 1066 occurrencesDevonian — about 208 of 1066 occurrencesDevonianCarboniferous — about 103 of 1066 occurrencesCarboniferousPermian — about 34 of 1066 occurrencesPermianEarly Triassic — about 0 of 1066 occurrencesMiddle Triassic — about 0 of 1066 occurrences545–535 Mya — about 0.7 occurrences535–525 Mya — about 3 occurrences525–515 Mya — about 40 occurrences515–505 Mya — about 96 occurrences505–495 Mya — about 43 occurrences495–485 Mya — about 29 occurrences485–475 Mya — about 39 occurrences475–465 Mya — about 48 occurrences465–455 Mya — about 118 occurrences455–445 Mya — about 134 occurrences445–435 Mya — about 55 occurrences435–425 Mya — about 70 occurrences425–415 Mya — about 81 occurrences415–405 Mya — about 48 occurrences405–395 Mya — about 18 occurrences395–385 Mya — about 49 occurrences385–375 Mya — about 32 occurrences375–366 Mya — about 16 occurrences366–356 Mya — about 16 occurrences356–346 Mya — about 20 occurrences346–336 Mya — about 11 occurrences336–326 Mya — about 5 occurrences326–316 Mya — about 6 occurrences316–306 Mya — about 22 occurrences306–296 Mya — about 39 occurrences296–286 Mya — about 6 occurrences286–276 Mya — about 4 occurrences276–266 Mya — about 16 occurrences266–256 Mya — about 2 occurrences256–246 Mya — about 0.1 occurrences521 Mya274.4 Mya545 Mya246 Mya

1,066 occurrences of Trilobita indet. 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

1,066 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

405 formations

Martinsburg — 36.90°N, 81.53°WMartinsburg — 37.35°N, 80.81°WMartinsburg — 37.38°N, 80.86°WGraham — 33.24°N, 98.12°WBurgess Shale — 51.44°N, 116.47°WFfairfach Flags and Grits — 52.00°N, 4.00°WSolvik — 59.92°N, 10.75°ESolvik — 60.17°N, 10.30°ESolvik — 59.83°N, 10.43°EFlags and Grits — 52.00°N, 4.00°WLexington Limestone — 37.98°N, 84.42°WLexington Limestone — 38.35°N, 84.86°WLexington Limestone — 38.22°N, 84.85°WLexington Limestone — 37.84°N, 84.59°WLexington Limestone — 37.90°N, 84.26°WSpurs — 71.55°S, 165.30°ESpurs — 71.34°S, 163.21°EWocklum — 51.33°N, 7.87°EBastion — 74.10°N, 23.00°WBastion — 74.35°N, 22.77°WBastion — 72.85°N, 25.03°WMount Ida — 36.77°S, 144.77°EMount Ida — 34.42°S, 145.60°EGorge — 44.93°N, 73.05°WLebanon — 36.08°N, 86.03°WLebanon — 35.47°N, 86.80°WLebanon — 35.81°N, 86.12°WLebanon — 35.81°N, 86.18°WLebanon — 36.04°N, 86.35°WBeiguoshan — 36.21°N, 106.61°ESkaneateles — 42.87°N, 77.87°WWirrealpa Limestone — 31.27°S, 138.93°ECatheys — 35.82°N, 86.83°WCatheys — 36.32°N, 85.94°WCatheys — 36.35°N, 85.79°WCatheys — 35.19°N, 86.91°WCatheys — 36.37°N, 85.64°WOpd Unit — 36.72°N, 114.88°WScotch Grove — 42.00°N, 91.00°WScotch Grove — 42.00°N, 92.00°WScotch Grove — 41.90°N, 90.60°WScotch Grove — 41.77°N, 91.13°WScotch Grove — 42.12°N, 91.13°WScotch Grove — 42.17°N, 91.10°WScotch Grove — 42.10°N, 91.28°WElla Island — 72.85°N, 25.03°WElla Island — 74.35°N, 22.77°WElla Island — 74.10°N, 22.98°WFfairfach Ashes and Lavas — 52.00°N, 4.00°WBeul — 51.39°N, 7.87°EForaker Limestone — 39.85°N, 95.67°WForaker Limestone — 39.27°N, 96.44°WForaker Limestone — 39.19°N, 96.57°WForaker Limestone — 38.37°N, 96.63°WForaker Limestone — 38.72°N, 96.16°WForaker Limestone — 39.14°N, 96.31°WForaker Limestone — 38.91°N, 96.06°WHemse Beds — 57.28°N, 18.32°EHemse Beds — 57.37°N, 18.69°EHemse Beds — 57.23°N, 18.37°EHemse Beds — 57.32°N, 18.70°E

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The named rock units Trilobita indet. has been recovered from, largest first. Drawn where the rock is now, not where it formed. 381 further formations hold fewer occurrences each and are not listed. 113 occurrences have no formation on record, which is common for older literature.

Trilobita indet. and its relatives

Ordovician

Where Trilobita indet. and its relatives were recorded in the Ordovician.

Found in the same rock

1,702 taxa

The Paleobiology Database records 913 sites for Trilobita indet., and this reads 240 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

380 references

Each of the 1,066 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. 368 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 Trilobita indet.

Source
Smithsonian
Credit
Smithsonian Institution
Licence
CC0 — this site’s default, not the record’s
Commercial use
the licence allows it

Structured light scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Trilobita indet. · PSAL:ARCH

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

Keep going

What may have been alongside itFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.