Protacanthoceras

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

On record

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

Time the record covers

At most 6.6 million years on record.

Every occurrence read is dated to somewhere between 100.5 Mya and 93.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Cretaceous — about 0 of 19 occurrencesLate Cretaceous — about 19 of 19 occurrencesLate Cretaceous101–100 Mya — about 0.0 occurrences100–100 Mya — about 0.7 occurrences100–100 Mya — about 0.7 occurrences100–100 Mya — about 0.7 occurrences100–99 Mya — about 0.7 occurrences99–99 Mya — about 0.7 occurrences99–99 Mya — about 0.7 occurrences99–99 Mya — about 0.7 occurrences99–98 Mya — about 0.7 occurrences98–98 Mya — about 0.7 occurrences98–98 Mya — about 0.7 occurrences98–98 Mya — about 0.7 occurrences98–97 Mya — about 0.7 occurrences97–97 Mya — about 0.7 occurrences97–97 Mya — about 0.7 occurrences97–97 Mya — about 0.7 occurrences97–96 Mya — about 0.7 occurrences96–96 Mya — about 0.7 occurrences96–96 Mya — about 0.7 occurrences96–96 Mya — about 0.7 occurrences96–95 Mya — about 0.7 occurrences95–95 Mya — about 0.7 occurrences95–95 Mya — about 0.7 occurrences95–95 Mya — about 0.7 occurrences95–94 Mya — about 0.7 occurrences94–94 Mya — about 0.7 occurrences94–94 Mya — about 0.7 occurrences94–94 Mya — about 0.0 occurrences101 Mya93.4 Mya

19 occurrences of Protacanthoceras on record, most of them in the Late Cretaceous. 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

19 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

Frontier — 43.67°N, 106.63°WFrontier — 45.00°N, 107.53°WFrontier — 44.16°N, 106.78°WFrontier — 43.43°N, 103.55°WCraie de Rouen — 49.08°N, 0.50°ECraie de Rouen — 43.80°N, 7.38°ELower Chalk — 50.83°N, 2.60°WSanandinovo — 43.56°N, 24.98°ESalinas — 14.19°S, 12.33°EGreenhorn Limestone — 44.73°N, 103.73°WBeer Head Limestone — 50.77°N, 2.57°WLa Luna — 9.36°N, 71.05°WMarno-calcaires bleutes — 43.83°N, 6.74°EBelle Fourche Shale — 43.10°N, 104.28°W

Loading coastlines…

The named rock units Protacanthoceras 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.

Protacanthoceras and its relatives

Late Cretaceous

Where Protacanthoceras and its relatives were recorded in the Late Cretaceous.

Found in the same rock

73 taxa

The Paleobiology Database records 17 sites for Protacanthoceras, 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

10 references

Each of the 19 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 Protacanthoceras was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

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

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

What may have been alongside itAcanthoceratinae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Spath 1923