Sievertsia

No picture of Sievertsia was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Sievertsia, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
CyclocystoididaePBDB
Life habit
low-level epifaunalPBDB, for Cyclocystoidea
Motility
stationaryPBDB, for Cyclocystoidea
Environment
marinePBDB, for Cyclocystoidea

Time the record covers

At least 426 million years on record.

The record covers at least 449.6 Mya to 23.04 Mya. No occurrence read is dated outside 450.2 Mya to 15.98 Mya.

Ordovician — about 1 of 21 occurrencesSilurian — about 15 of 21 occurrencesDevonian — about 4 of 21 occurrencesDevonianCarboniferous — about 0 of 21 occurrencesPermian — about 0 of 21 occurrencesEarly Triassic — about 0 of 21 occurrencesMiddle Triassic — about 0 of 21 occurrencesLate Triassic — about 0 of 21 occurrencesEarly Jurassic — about 0 of 21 occurrencesMiddle Jurassic — about 0 of 21 occurrencesLate Jurassic — about 0 of 21 occurrencesEarly Cretaceous — about 0 of 21 occurrencesLate Cretaceous — about 0 of 21 occurrencesPaleocene — about 0 of 21 occurrencesEocene — about 0 of 21 occurrencesOligocene — about 0 of 21 occurrencesMiocene — about 1 of 21 occurrences459–444 Mya — about 1 occurrence444–429 Mya — about 10 occurrences429–414 Mya — about 7 occurrences414–399 Mya — about 0.3 occurrences399–384 Mya — about 0.8 occurrences384–369 Mya — about 0.2 occurrences37–22 Mya — about 0.1 occurrences22–7.3 Mya — about 0.9 occurrences449.6 Mya23.04 Mya459 Mya7 Mya

21 occurrences of Sievertsia on record, most of them in the Silurian. 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

21 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

Waldron Shale — 39.45°N, 85.67°WWayne — 36.08°N, 87.00°WWayne — 35.38°N, 88.00°WWayne — 38.08°N, 87.02°WLochkov — 50.03°N, 14.33°ELochkov — 49.98°N, 14.18°EWise Lake — 43.28°N, 91.85°WBrassfield — 39.34°N, 85.48°WBlanding — 42.40°N, 91.30°WLaurel Limestone — 39.43°N, 85.63°WLaurel — 39.50°N, 85.47°WBirdsong Shale — 35.88°N, 88.12°WOsgood Shale — 39.13°N, 85.30°WSalamonie Dolomite — 39.38°N, 85.57°WHenryhouse — 34.37°N, 97.00°WPirabas — 1.05°S, 46.77°WMiami Bend — 41.68°N, 83.74°W

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The named rock units Sievertsia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Sievertsia and its relatives

Silurian

Where Sievertsia and its relatives were recorded in the Silurian.

Found in the same rock

341 taxa

The Paleobiology Database records 21 sites for Sievertsia, 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

4 references

Each of the 21 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 content0

No picture of Sievertsia was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Sievertsia, or no answer at all. This entry cannot say which.

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 itCyclocystoididae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Smith and Paul 1982