Acanthoceras amphibolum

No picture of Acanthoceras amphibolum was found. Wikidata, iDigBio and Smithsonian Open Access were searched and had none. Wikipedia 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 Acanthoceras amphibolum, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
AcanthocerasPBDB
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 29 occurrencesLate Cretaceous — about 29 of 29 occurrencesLate Cretaceous101–100 Mya — about 0.0 occurrences100–100 Mya — about 1 occurrence100–100 Mya — about 1 occurrence100–100 Mya — about 1 occurrence100–99 Mya — about 1 occurrence99–99 Mya — about 1 occurrence99–99 Mya — about 1 occurrence99–99 Mya — about 1 occurrence99–98 Mya — about 1 occurrence98–98 Mya — about 1 occurrence98–98 Mya — about 1 occurrence98–98 Mya — about 1 occurrence98–97 Mya — about 1 occurrence97–97 Mya — about 1 occurrence97–97 Mya — about 1 occurrence97–97 Mya — about 1 occurrence97–96 Mya — about 1 occurrence96–96 Mya — about 1 occurrence96–96 Mya — about 1 occurrence96–96 Mya — about 1 occurrence96–95 Mya — about 1 occurrence95–95 Mya — about 1 occurrence95–95 Mya — about 1 occurrence95–95 Mya — about 1 occurrence95–94 Mya — about 1 occurrence94–94 Mya — about 1 occurrence94–94 Mya — about 1 occurrence94–94 Mya — about 0.0 occurrences101 Mya93.4 Mya

29 occurrences of Acanthoceras amphibolum 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

29 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

9 formations

Frontier — 45.00°N, 107.53°WFrontier — 44.16°N, 106.78°WFrontier — 43.43°N, 103.55°WFrontier — 45.17°N, 107.72°WFrontier — 45.45°N, 107.62°WEagle Ford — 32.70°N, 97.45°WEagle Ford — 32.41°N, 97.21°WEagle Ford — 32.60°N, 97.07°WWoodbine — 32.86°N, 97.06°WWoodbine — 32.77°N, 97.01°WWoodbine — 33.81°N, 96.83°WDakota Sandstone — 35.08°N, 106.65°WDakota Sandstone — 34.26°N, 106.68°WMancos Shale — 35.08°N, 107.38°WMancos Shale — 35.33°N, 105.90°WOdukpani — 5.20°N, 8.25°EBoquillas — 31.80°N, 106.54°WBelle Fourche Shale — 43.10°N, 104.28°WGraneros Shale — 38.78°N, 98.47°W

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The named rock units Acanthoceras amphibolum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Acanthoceras amphibolum and its relatives

Late Cretaceous

Where Acanthoceras amphibolum and its relatives were recorded in the Late Cretaceous.

Found in the same rock

71 taxa

The Paleobiology Database records 24 sites for Acanthoceras amphibolum, 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

13 references

Each of the 29 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. 1 further reference is 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

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

No picture of Acanthoceras amphibolum was found. Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

Wikipedia 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 Acanthoceras amphibolum, or no answer at all. This entry cannot say which.

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. (Morrow 1935)