Robsonoceras

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

On record

Recorded, not inferred
Sits inside
EllesmeroceratidaePBDB
Diet
carnivorePBDB, for Cephalopoda
Life habit
nektobenthic, solitaryPBDB, for Ellesmerocerida
Motility
actively mobilePBDB, for Ellesmerocerida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Ellesmerocerida

Time the record covers

At least 15 million years on record.

The record covers at least 483.4 Mya to 468 Mya. No occurrence read is dated outside 488.9 Mya to 458.2 Mya.

Cambrian — about 0 of 8 occurrencesCambrianOrdovician — about 8 of 8 occurrencesOrdovician490–488 Mya — about 0.1 occurrences488–487 Mya — about 0.2 occurrences487–486 Mya — about 0.3 occurrences486–485 Mya — about 0.5 occurrences485–484 Mya — about 0.5 occurrences484–483 Mya — about 0.6 occurrences483–482 Mya — about 1.0 occurrences482–481 Mya — about 0.5 occurrences481–480 Mya — about 0.3 occurrences480–479 Mya — about 0.3 occurrences479–478 Mya — about 0.3 occurrences478–477 Mya — about 0.2 occurrences477–476 Mya — about 0.1 occurrences476–475 Mya — about 0.2 occurrences475–474 Mya — about 0.3 occurrences474–472 Mya — about 0.3 occurrences472–471 Mya — about 0.3 occurrences471–470 Mya — about 0.1 occurrences470–469 Mya — about 0.1 occurrences469–468 Mya — about 0.1 occurrences468–467 Mya — about 0.2 occurrences467–466 Mya — about 0.2 occurrences466–465 Mya — about 0.2 occurrences465–464 Mya — about 0.2 occurrences464–463 Mya — about 0.2 occurrences463–462 Mya — about 0.2 occurrences462–461 Mya — about 0.2 occurrences461–460 Mya — about 0.1 occurrences460–459 Mya — about 0.1 occurrences459–458 Mya — about 0.0 occurrences483.4 Mya468 Mya489.5 Mya457.6 Mya

8 occurrences of Robsonoceras 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

8 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

7 formations

San Juan — 30.00°S, 69.00°WSanta Rosita — 24.00°S, 66.00°WJigunsan — 37.19°N, 128.74°EChepultepec — 38.80°N, 78.55°WChushina — 53.13°N, 119.07°WManitou Limestone — 39.09°N, 105.10°WSurvey Peak — 51.92°N, 116.91°W

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The named rock units Robsonoceras 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.

Robsonoceras and its relatives

Ordovician

Where Robsonoceras and its relatives were recorded in the Ordovician.

Found in the same rock

69 taxa

The Paleobiology Database records 8 sites for Robsonoceras, 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

7 references

Each of the 8 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 Robsonoceras was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

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

No 3D scan of Robsonoceras 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 itEllesmeroceratidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ulrich and Foerste 1933