Pseudosphaerexochus

Pseudosphaerexochus

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
SphaerexochinaePBDB
Diet
carnivorePBDB, for Cheiruridae
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB
Environment
marinePBDB, for Trilobita

Time the record covers

At least 26 million years on record.

The record covers at least 469.4 Mya to 443.1 Mya. No occurrence read is dated outside 486.85 Mya to 432.9 Mya.

Cambrian — about 0 of 115 occurrencesOrdovician — about 114 of 115 occurrencesOrdovicianSilurian — about 1 of 115 occurrencesSilurian488–486 Mya — about 0.1 occurrences486–484 Mya — about 0.1 occurrences484–482 Mya — about 0.1 occurrences482–480 Mya — about 0.1 occurrences480–479 Mya — about 0.1 occurrences479–477 Mya — about 0.2 occurrences477–475 Mya — about 0.3 occurrences475–473 Mya — about 0.3 occurrences473–471 Mya — about 0.5 occurrences471–469 Mya — about 2 occurrences469–467 Mya — about 0.8 occurrences467–465 Mya — about 1.0 occurrences465–464 Mya — about 1 occurrence464–462 Mya — about 2 occurrences462–460 Mya — about 2 occurrences460–458 Mya — about 5 occurrences458–456 Mya — about 5 occurrences456–454 Mya — about 3 occurrences454–452 Mya — about 8 occurrences452–451 Mya — about 9 occurrences451–449 Mya — about 18 occurrences449–447 Mya — about 23 occurrences447–445 Mya — about 21 occurrences445–443 Mya — about 9 occurrences443–441 Mya — about 0.2 occurrences441–439 Mya — about 0.2 occurrences439–437 Mya — about 0.2 occurrences437–436 Mya — about 0.2 occurrences436–434 Mya — about 0.2 occurrences434–432 Mya — about 0.1 occurrences469.4 Mya443.1 Mya488 Mya432 Mya

115 occurrences of Pseudosphaerexochus 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

115 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

54 formations

Kildare Limestone — 53.17°N, 6.75°WKildare Limestone — 53.20°N, 6.92°WUlunda Mudstone — 58.00°N, 13.00°EUlunda Mudstone — 58.30°N, 13.78°EUlunda Mudstone — 58.43°N, 13.70°EJonstorp — 58.23°N, 13.80°EJonstorp — 58.30°N, 13.78°EJonstorp — 58.43°N, 13.70°EJonstorp — 58.23°N, 15.73°EBoda Limestone — 61.17°N, 14.71°EBoda Limestone — 61.15°N, 15.12°EBoda Limestone — 61.02°N, 15.22°ESolvang — 60.00°N, 11.00°ESolvang — 58.45°N, 8.76°ESolvang — 60.05°N, 10.18°ECliffield — 37.17°N, 81.48°WCliffield — 37.13°N, 81.48°WCliffield — 37.08°N, 81.71°WDufton Shales — 54.72°N, 2.48°WSouth Threave — 55.25°N, 4.85°WKullsberg Limestone — 61.05°N, 15.20°EKullsberg Limestone — 60.91°N, 15.10°ELindegård — 56.00°N, 13.29°EDalby — 57.00°N, 17.00°EDalby — 61.00°N, 15.00°EKandle — 59.42°N, 24.75°ECystoid Limestone — 41.15°N, 1.18°WCystoid Limestone — 41.17°N, 1.15°WCrown Point — 44.62°N, 73.41°WMednikovo — 59.68°N, 30.45°EMednikovo — 59.77°N, 30.33°EÄrina — 59.19°N, 26.19°EKullsberg — 61.05°N, 15.20°EWolka — 50.64°N, 20.44°EWolka — 50.77°N, 20.57°EPyle Mountain Argillite — 46.68°N, 68.22°WÖjlemyr — 52.52°N, 6.08°EChasmops Limestone — 58.77°N, 17.42°EChasmops Limestone — 63.00°N, 14.80°EKirkley Bank — 54.43°N, 2.78°WOnny Shale — 52.60°N, 2.55°WCrugan Mudstone — 53.00°N, 4.00°W

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The named rock units Pseudosphaerexochus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 30 further formations hold fewer occurrences each and are not listed. 7 occurrences have no formation on record, which is common for older literature.

Pseudosphaerexochus and its relatives

Ordovician

Where Pseudosphaerexochus and its relatives were recorded in the Ordovician.

Found in the same rock

1,326 taxa

The Paleobiology Database records 98 sites for Pseudosphaerexochus, 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

49 references

Each of the 115 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. 37 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 Pseudosphaerexochus

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 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 itSphaerexochinae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Schmidt 1881)