Triboloceras

Triboloceras is the name given to an extinct nautiloid genus from the Lower Carboniferous (Mississippian), included in the nautilid family Trigonoceratidae characterized by an evolute shell bearing longitudinal ribs, with whorls in contact except in the early and very latest growth stages. Chambers are short, sutures tend for form ventral and in some cases dorsal and lateral lobes. The siphuncle is small, tubular, and subcentral.

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

On record

Recorded, not inferred
Sits inside
TrigonoceratinaePBDB
Diet
carnivorePBDB, for Nautilida
Life habit
nektobenthicPBDB, for Nautilida
Motility
actively mobilePBDB, for Nautilida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 5.2 million years on record.

The record covers at least 351.9 Mya to 346.7 Mya. No occurrence read is dated outside 358.86 Mya to 330.3 Mya.

Devonian — about 0 of 2 occurrencesCarboniferous — about 2 of 2 occurrencesCarboniferous359–358 Mya — about 0.1 occurrences358–357 Mya — about 0.1 occurrences357–356 Mya — about 0.1 occurrences356–355 Mya — about 0.1 occurrences355–354 Mya — about 0.1 occurrences354–353 Mya — about 0.1 occurrences353–353 Mya — about 0.1 occurrences353–352 Mya — about 0.1 occurrences348–347 Mya — about 0.0 occurrences347–346 Mya — about 0.1 occurrences346–345 Mya — about 0.1 occurrences345–344 Mya — about 0.1 occurrences344–343 Mya — about 0.1 occurrences343–342 Mya — about 0.1 occurrences342–341 Mya — about 0.1 occurrences341–340 Mya — about 0.1 occurrences340–339 Mya — about 0.1 occurrences339–338 Mya — about 0.1 occurrences338–337 Mya — about 0.1 occurrences337–336 Mya — about 0.1 occurrences336–335 Mya — about 0.1 occurrences335–334 Mya — about 0.1 occurrences334–333 Mya — about 0.1 occurrences333–332 Mya — about 0.1 occurrences332–331 Mya — about 0.1 occurrences331–330 Mya — about 0.0 occurrences351.9 Mya346.7 Mya359.4 Mya329.7 Mya

2 occurrences of Triboloceras on record, most of them in the Carboniferous. 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

2 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

1 formation

Walls Ferry — 35.83°N, 91.86°W

Loading coastlines…

The named rock units Triboloceras 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.

Triboloceras and its relatives

Carboniferous

Where Triboloceras and its relatives were recorded in the Carboniferous.

Found in the same rock

7 taxa

The Paleobiology Database records 2 sites for Triboloceras, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

2 references

Each of the 2 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 Triboloceras 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 Triboloceras, or no answer at all. This entry cannot say which.

No 3D scan of Triboloceras was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itTrigonoceratinae through timeFormations of the CarboniferousThe world it lived on

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