Rioceras

Rioceras is an extinct genus of orthocerid cephalopods of the family Baltoceratidae that lived in what would be North America during the Early Ordovician from 480—472 mya, existing for approximately 8 million years.

No picture of Rioceras 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 Rioceras, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
RioceratidaePBDB
Diet
carnivorePBDB, for Cephalopoda
Life habit
nektonicPBDB, for Cephalopoda
Motility
fast-movingPBDB, for Cephalopoda
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 6.3 million years on record.

The record covers at least 483.4 Mya to 477.1 Mya. No occurrence read is dated outside 486.85 Mya to 457.3 Mya.

Cambrian — about 0 of 21 occurrencesOrdovician — about 21 of 21 occurrencesOrdovician487–486 Mya — about 1.0 occurrences486–485 Mya — about 2 occurrences485–484 Mya — about 2 occurrences484–483 Mya — about 2 occurrences483–482 Mya — about 1 occurrence482–481 Mya — about 1 occurrence481–480 Mya — about 1 occurrence480–479 Mya — about 1 occurrence479–478 Mya — about 1 occurrence478–477 Mya — about 1 occurrence477–476 Mya — about 1.0 occurrences476–475 Mya — about 0.9 occurrences475–474 Mya — about 0.9 occurrences474–473 Mya — about 0.9 occurrences473–472 Mya — about 0.9 occurrences472–471 Mya — about 0.7 occurrences471–470 Mya — about 0.0 occurrences470–469 Mya — about 0.0 occurrences469–468 Mya — about 0.0 occurrences468–467 Mya — about 0.0 occurrences467–466 Mya — about 0.0 occurrences466–465 Mya — about 0.0 occurrences465–464 Mya — about 0.0 occurrences464–463 Mya — about 0.0 occurrences463–462 Mya — about 0.0 occurrences462–461 Mya — about 0.0 occurrences461–460 Mya — about 0.0 occurrences460–459 Mya — about 0.0 occurrences459–458 Mya — about 0.0 occurrences458–457 Mya — about 0.0 occurrences483.4 Mya477.1 Mya487.4 Mya456.7 Mya

21 occurrences of Rioceras 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

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

10 formations

Victorio — 32.57°N, 107.74°WVictorio — 33.16°N, 107.30°WScenic Drive — 31.84°N, 106.48°WTinu — 17.37°N, 97.17°WCooks — 33.18°N, 106.66°WSchistes de Saint-Chinian — 43.33°N, 2.60°ESchistes de Saint-Chinian — 43.45°N, 2.99°ECouches de la Maurerie — 43.45°N, 2.99°ECouches de la Maurerie — 43.30°N, 2.88°EUpper Fezouata — 30.55°N, 5.68°WRockdale Run — 39.63°N, 77.82°WShakopee — 45.05°N, 92.80°WSaint-Chinian — 43.42°N, 2.95°E

Loading coastlines…

The named rock units Rioceras 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.

Rioceras and its relatives

Ordovician

Where Rioceras and its relatives were recorded in the Ordovician.

Found in the same rock

85 taxa

The Paleobiology Database records 15 sites for Rioceras, 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

6 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 Rioceras 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 Rioceras, or no answer at all. This entry cannot say which.

No 3D scan of Rioceras 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.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itRioceratidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Flower 1964