Oriostoma

Oriostoma

the paleobear from Lontananza, Loreto, Peru · CC BY 2.0 · via Wikidata/Commons. 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
OriostomatidaePBDB
Diet
suspension feederPBDB
Life habit
epifaunalPBDB
Motility
stationaryPBDB
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 63 million years on record.

The record covers at least 457.3 Mya to 393.47 Mya. No occurrence read is dated outside 471.3 Mya to 382.31 Mya.

Ordovician — about 4 of 178 occurrencesOrdovicianSilurian — about 140 of 178 occurrencesSilurianDevonian — about 34 of 178 occurrencesDevonian473–470 Mya — about 0.1 occurrences470–467 Mya — about 0.2 occurrences467–464 Mya — about 0.2 occurrences464–461 Mya — about 0.2 occurrences461–458 Mya — about 0.2 occurrences458–455 Mya — about 0.0 occurrences451–448 Mya — about 0.8 occurrences448–445 Mya — about 2 occurrences445–442 Mya — about 0.8 occurrences442–439 Mya — about 2 occurrences439–436 Mya — about 6 occurrences436–433 Mya — about 8 occurrences433–430 Mya — about 50 occurrences430–427 Mya — about 11 occurrences427–424 Mya — about 49 occurrences424–421 Mya — about 13 occurrences421–418 Mya — about 3 occurrences418–414 Mya — about 4 occurrences414–411 Mya — about 9 occurrences411–408 Mya — about 5 occurrences408–405 Mya — about 1 occurrence405–402 Mya — about 1 occurrence402–399 Mya — about 1 occurrence399–396 Mya — about 2 occurrences396–393 Mya — about 2 occurrences393–390 Mya — about 2 occurrences390–387 Mya — about 2 occurrences387–384 Mya — about 0.8 occurrences384–381 Mya — about 0.4 occurrences457.3 Mya393.47 Mya473 Mya381 Mya

178 occurrences of Oriostoma 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

178 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

71 formations

Kopanina — 49.95°N, 14.22°EKopanina — 50.05°N, 14.37°EKopanina — 50.67°N, 15.17°EKopanina — 50.00°N, 14.33°EKopanina — 49.93°N, 14.05°EKopanina — 49.94°N, 14.19°EKopanina — 49.96°N, 14.10°ELiten — 50.05°N, 14.42°EUpper Visby — 57.50°N, 18.55°EUpper Visby — 57.63°N, 18.30°EOverton — 52.48°N, 2.63°WSlite Beds — 57.72°N, 18.80°ESlite Beds — 57.75°N, 18.73°EHemse Beds — 57.28°N, 18.32°EHemse Beds — 57.37°N, 18.69°ERacine — 43.04°N, 87.91°WRacine — 42.73°N, 87.78°WRacine — 42.88°N, 88.04°WRacine — 43.05°N, 88.01°WBagovitsa — 48.68°N, 26.58°EBagovitsa — 48.55°N, 26.49°EBagovitsa — 48.76°N, 26.39°ELower Visby — 57.50°N, 18.55°EPraha — 49.92°N, 14.08°EGuelph — 44.18°N, 80.82°WGuelph — 43.43°N, 80.31°WHogklint — 57.50°N, 18.55°EKlinteberg Beds — 57.53°N, 18.43°ECape Phillips — 75.80°N, 94.50°WCape Phillips — 74.10°N, 94.00°WWadleigh Limestone — 55.49°N, 132.36°WCalcaire d’Erbray — 47.66°N, 1.32°WHögklint — 57.62°N, 18.27°EBringewood Beds — 51.90°N, 2.08°WBringewood Beds — 52.37°N, 2.73°WDenay Limestone — 39.98°N, 116.27°WLerberget Marlstone — 57.63°N, 18.30°ELower Visby Beds — 57.63°N, 18.30°EUpper Visby Beds — 57.63°N, 18.30°ELouisville — 40.58°N, 86.67°WGarra — 33.95°S, 148.82°E

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The named rock units Oriostoma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 47 further formations hold fewer occurrences each and are not listed. 15 occurrences have no formation on record, which is common for older literature.

Oriostoma and its relatives

Silurian

Where Oriostoma and its relatives were recorded in the Silurian.

Found in the same rock

1,643 taxa

The Paleobiology Database records 120 sites for Oriostoma, 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

51 references

Each of the 178 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. 39 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 Oriostoma

Credit
the paleobear from Lontananza, Loreto, Peru
Licence
CC BY 2.0
Commercial use
the licence allows it

No 3D scan of Oriostoma was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itOriostomatidae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Munier-Chalmas 1876)