Helicoceras

Helicoceras

via iDigBio · CC BY · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
NostoceratidaePBDB
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 least 91 million years on record.

The record covers at least 100.5 Mya to 8.725 Mya. No occurrence read is dated outside 106.3 Mya to 5.09 Mya.

Early Cretaceous — about 2 of 23 occurrencesLate Cretaceous — about 12 of 23 occurrencesLate CretaceousPaleocene — about 0 of 23 occurrencesEocene — about 0 of 23 occurrencesOligocene — about 0 of 23 occurrencesMiocene — about 9 of 23 occurrencesMiocenePliocene — about 0 of 23 occurrences108–105 Mya — about 0.5 occurrences105–101 Mya — about 1 occurrence101–98 Mya — about 0.3 occurrences91–87 Mya — about 0.6 occurrences87–84 Mya — about 0.4 occurrences84–80 Mya — about 1 occurrence80–77 Mya — about 1 occurrence77–73 Mya — about 1 occurrence73–70 Mya — about 3 occurrences70–66 Mya — about 4 occurrences66–63 Mya — about 0.2 occurrences14–10 Mya — about 3 occurrences10–6.6 Mya — about 4 occurrences6.6–3.1 Mya — about 2 occurrences100.5 Mya8.725 Mya108 Mya3 Mya

23 occurrences of Helicoceras 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

23 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

Nacatoch Sand — 32.10°N, 96.47°WNacatoch Sand — 31.31°N, 96.90°WPrairie Bluff — 33.79°N, 88.91°WPrairie Bluff — 32.70°N, 88.17°WPrairie Bluff — 32.14°N, 87.42°WNeylandville Marl — 33.20°N, 96.61°WNeylandville Marl — 31.48°N, 96.73°WNeylandville Marl — 32.10°N, 96.47°WRiacheulo — 10.76°S, 37.08°WRipley — 35.32°N, 88.42°WMancos Shale — 38.77°N, 111.39°WVathylakkos — 40.75°N, 22.75°E

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The named rock units Helicoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.

Helicoceras and its relatives

Late Cretaceous

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

Found in the same rock

701 taxa

The Paleobiology Database records 22 sites for Helicoceras, 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

12 references

Each of the 23 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 content1

Picture of Helicoceras

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Helicoceras 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.

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. d'Orbigny 1840