Stygina

Stygina

via iDigBio · CC BY · 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
StygininaePBDB
Diet
carnivorePBDB, for Corynexochida
Life habit
nektobenthicPBDB, for Corynexochida
Motility
actively mobilePBDB, for Corynexochida
Vision
well-developedPBDB, for Styginidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 22 million years on record.

The record covers at least 468 Mya to 445.2 Mya. No occurrence read is dated outside 477.1 Mya to 443.1 Mya.

Ordovician — about 51 of 51 occurrencesOrdovicianSilurian — about 0 of 51 occurrences478–477 Mya — about 0.1 occurrences477–475 Mya — about 0.1 occurrences475–474 Mya — about 0.1 occurrences474–473 Mya — about 0.1 occurrences473–472 Mya — about 0.1 occurrences472–471 Mya — about 0.1 occurrences471–470 Mya — about 0.1 occurrences470–468 Mya — about 0.2 occurrences468–467 Mya — about 0.1 occurrences467–466 Mya — about 0.1 occurrences466–465 Mya — about 0.1 occurrences465–464 Mya — about 0.1 occurrences464–462 Mya — about 0.1 occurrences462–461 Mya — about 0.1 occurrences461–460 Mya — about 0.4 occurrences460–459 Mya — about 0.4 occurrences459–458 Mya — about 0.9 occurrences458–457 Mya — about 1 occurrence457–455 Mya — about 0.4 occurrences455–454 Mya — about 0.4 occurrences454–453 Mya — about 0.6 occurrences453–452 Mya — about 8 occurrences452–451 Mya — about 3 occurrences451–449 Mya — about 5 occurrences449–448 Mya — about 8 occurrences448–447 Mya — about 7 occurrences447–446 Mya — about 7 occurrences446–445 Mya — about 5 occurrences445–444 Mya — about 1 occurrence444–442 Mya — about 0.6 occurrences468 Mya445.2 Mya477.8 Mya442.4 Mya

51 occurrences of Stygina 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

51 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

25 formations

Solvang — 60.00°N, 11.00°ESolvang — 60.13°N, 10.28°ESolvang — 59.87°N, 10.58°ESolvang — 58.45°N, 8.76°ESolvang — 59.85°N, 10.53°ESolvang — 59.86°N, 10.52°ESolvang — 60.05°N, 10.18°EHusbergøya — 59.88°N, 10.72°EHusbergøya — 59.85°N, 10.49°ESørbakken — 60.05°N, 10.18°EDolhir — 52.93°N, 3.18°WBoda Limestone — 61.05°N, 15.20°ENakkholmen — 59.87°N, 10.58°ENakkholmen — 59.84°N, 10.54°EHanson Creek — 39.38°N, 116.14°WHusbergoya Shale — 60.00°N, 11.00°EJerrestad Shale — 57.78°N, 14.18°EDalby — 57.00°N, 17.00°ERhiwlas Limestone — 53.00°N, 3.00°WDuoQuanShan — 38.00°N, 95.00°ENakholmen — 59.88°N, 10.54°EGrimsøya — 59.83°N, 10.51°EVenstøp — 59.24°N, 9.57°ELangåra — 59.85°N, 10.50°ESkogerholmen — 59.92°N, 10.72°EFjäcka Shale — 58.23°N, 13.80°EOjlemyr cherts — 57.82°N, 18.90°ESteinvika — 59.10°N, 9.62°ECraighead — 55.27°N, 4.78°WFosses — 50.34°N, 5.08°EKarasa — 52.22°N, 87.01°EKirkley Bank — 54.42°N, 2.83°W

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The named rock units Stygina has been recovered from, largest first. Drawn where the rock is now, not where it formed. One further formation holds fewer occurrences and is not listed. 3 occurrences have no formation on record, which is common for older literature.

Stygina and its relatives

Ordovician

Where Stygina and its relatives were recorded in the Ordovician.

Found in the same rock

569 taxa

The Paleobiology Database records 48 sites for Stygina, 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

20 references

Each of the 51 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. 8 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 Stygina

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Stygina 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 itStygininae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Salter 1853