Iddingsia

Iddingsia

Conroy, E. A.; Rowell, Albert J. · CC BY 4.0 · via GBIF. 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
DokimokephalidaePBDB
Diet
carnivorePBDB, for Trilobita
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB, for Dokimokephalidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 455 million years on record.

The record covers at least 493.5 Mya to 37.71 Mya. No occurrence read is dated outside 497 Mya to 33.9 Mya.

Cambrian — about 31 of 33 occurrencesOrdovician — about 0 of 33 occurrencesSilurian — about 0 of 33 occurrencesDevonian — about 0 of 33 occurrencesCarboniferous — about 0 of 33 occurrencesPermian — about 0 of 33 occurrencesEarly Triassic — about 0 of 33 occurrencesMiddle Triassic — about 0 of 33 occurrencesLate Triassic — about 0 of 33 occurrencesEarly Jurassic — about 0 of 33 occurrencesMiddle Jurassic — about 0 of 33 occurrencesLate Jurassic — about 0 of 33 occurrencesEarly Cretaceous — about 0 of 33 occurrencesLate Cretaceous — about 0 of 33 occurrencesPaleocene — about 0 of 33 occurrencesEocene — about 2 of 33 occurrencesOligocene — about 0 of 33 occurrences506–490 Mya — about 23 occurrences490–474 Mya — about 8 occurrences57–41 Mya — about 1 occurrence41–25 Mya — about 1 occurrence493.5 Mya37.71 Mya506 Mya25 Mya

33 occurrences of Iddingsia on record, most of them in the Cambrian. 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

33 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

14 formations

Orr — 38.80°N, 113.35°WOrr — 38.70°N, 113.44°WOrr — 39.74°N, 113.41°WDavis — 37.93°N, 90.73°WDavis — 37.77°N, 90.52°WDavis — 37.97°N, 90.03°WWilberns — 30.62°N, 98.51°WWilberns — 30.64°N, 98.26°WWilberns — 30.43°N, 98.37°WJones Ridge Limestone — 65.08°N, 141.10°WJones Ridge Limestone — 65.00°N, 141.00°WWindfall — 37.15°N, 116.00°WWindfall — 39.45°N, 115.97°WCollier Shale — 34.72°N, 93.01°WBison Creek — 51.50°N, 116.20°WGatesburg — 40.38°N, 78.20°WGatesburg — 40.76°N, 77.18°WCorset Spring Shale — 38.87°N, 114.32°WSaman — 4.84°S, 80.77°WSan Juan — 16.59°N, 92.89°WWhipple Cave — 38.52°N, 114.97°WNounan — 41.90°N, 111.70°WSt. Charles — 41.90°N, 111.70°W

Loading coastlines…

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

Iddingsia and its relatives

Cambrian

Where Iddingsia and its relatives were recorded in the Cambrian.

Found in the same rock

162 taxa

The Paleobiology Database records 33 sites for Iddingsia, 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

12 references

Each of the 33 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 Iddingsia

Source
GBIF
Credit
Conroy, E. A.; Rowell, Albert J.
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

What may have been alongside itDokimokephalidae through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Walcott 1924