Dawsonoceras

Dawsonoceras

Uncredited · CC BY-SA 4.0 · 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
DawsonoceratidaePBDB
Diet
carnivorePBDB, for Orthocerida
Life habit
nektonicPBDB, for Orthocerida
Motility
actively mobilePBDB, for Orthocerida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Orthocerida

Time the record covers

At least 56 million years on record.

The record covers at least 449.9 Mya to 393.47 Mya. No occurrence read is dated outside 452.8 Mya to 387.95 Mya.

Ordovician — about 6 of 99 occurrencesOrdovicianSilurian — about 91 of 99 occurrencesSilurianDevonian — about 2 of 99 occurrencesDevonian454–452 Mya — about 0.3 occurrences452–450 Mya — about 2 occurrences450–447 Mya — about 0.8 occurrences447–445 Mya — about 0.9 occurrences445–443 Mya — about 2 occurrences443–441 Mya — about 2 occurrences441–438 Mya — about 4 occurrences438–436 Mya — about 7 occurrences436–434 Mya — about 7 occurrences434–432 Mya — about 21 occurrences432–429 Mya — about 20 occurrences429–427 Mya — about 12 occurrences427–425 Mya — about 6 occurrences425–423 Mya — about 8 occurrences423–420 Mya — about 4 occurrences420–418 Mya — about 1 occurrence396–393 Mya — about 0.0 occurrences393–391 Mya — about 0.8 occurrences391–389 Mya — about 0.8 occurrences389–387 Mya — about 0.3 occurrences449.9 Mya393.47 Mya454 Mya387 Mya

99 occurrences of Dawsonoceras 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

99 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

40 formations

Irondequoit — 43.18°N, 78.72°WIrondequoit — 43.20°N, 77.62°WIrondequoit — 43.23°N, 77.21°WIrondequoit — 43.23°N, 76.98°WIrondequoit — 43.21°N, 76.88°WIrondequoit — 43.24°N, 76.80°WIrondequoit — 43.26°N, 76.70°WRochester — 43.16°N, 79.05°WRochester — 43.18°N, 78.72°WRochester — 43.19°N, 77.56°WRochester — 43.23°N, 77.21°WRochester — 43.22°N, 77.02°WRochester — 43.21°N, 76.88°WRochester Shale — 43.15°N, 77.62°WRochester Shale — 43.15°N, 77.06°WRochester Shale — 43.10°N, 79.06°WRochester Shale — 43.20°N, 77.53°WRochester Shale — 43.15°N, 77.72°WRacine — 43.04°N, 87.91°WRacine — 43.05°N, 88.01°WRacine — 42.73°N, 87.78°WRacine — 42.88°N, 88.04°WRacine — 41.85°N, 87.65°WWillowvale — 43.04°N, 75.36°WWillowvale — 43.03°N, 75.28°WJupiter — 49.17°N, 61.71°WJupiter — 49.25°N, 63.04°WJupiter — 49.28°N, 63.22°WJupiter — 49.50°N, 63.00°WPagegiai — 55.57°N, 21.45°EKopanina — 50.00°N, 14.35°EKopanina — 49.95°N, 14.22°EHerkimer — 43.06°N, 75.40°WHerkimer — 43.04°N, 75.36°WHerkimer — 43.03°N, 75.28°WBoda Limestone — 61.17°N, 14.71°EBoda Limestone — 61.05°N, 15.20°EHalla — 57.30°N, 18.13°EHalla — 57.31°N, 18.16°EAmherstburg — 43.98°N, 81.28°WRockway — 43.15°N, 77.06°WRockway — 43.00°N, 79.00°WPozary — 50.03°N, 14.32°EScotch Grove — 41.90°N, 90.60°WScotch Grove — 42.00°N, 91.00°WOsgood Shale — 39.13°N, 85.30°WOsgood Shale — 39.00°N, 85.00°WWilliamson Shale — 43.00°N, 76.00°WWilliamson Shale — 43.00°N, 75.00°WJoslin Hill — 43.21°N, 75.46°WLockport — 43.15°N, 77.62°WFiddlers Green — 42.85°N, 78.80°WIrondequoit Limestone — 43.21°N, 77.58°WGasport Limestone — 43.20°N, 78.58°WLilla Karlso Limestone — 57.63°N, 18.30°ELouisville — 40.58°N, 86.67°W

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The named rock units Dawsonoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 16 further formations hold fewer occurrences each and are not listed. 7 occurrences have no formation on record, which is common for older literature.

Dawsonoceras and its relatives

Silurian

Where Dawsonoceras and its relatives were recorded in the Silurian.

Found in the same rock

1,412 taxa

The Paleobiology Database records 93 sites for Dawsonoceras, 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

29 references

Each of the 99 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. 17 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 Dawsonoceras

Credit
nobody named on the record
Licence
CC BY-SA 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

Everything alive alongside itDawsonoceratidae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hyatt 1884