Heterohelix

Heterohelix is an extinct genus of foraminifera belonging to the family Heterohelicidae of the superfamily Heterohelicoidea and the suborder Globigerinina. Its type species is Heterohelix americana.

Heterohelix

via iDigBio · CC0 · 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
HeterohelicinaePBDB
Diet
omnivorePBDB, for Foraminifera
Life habit
planktonicPBDB, for Globigerinina
Motility
stationaryPBDB, for Foraminifera
Environment
marinePBDB, for Globigerinina

Time the record covers

At least 60 million years on record.

The record covers at least 93.9 Mya to 33.9 Mya. No occurrence read is dated outside 100.5 Mya to 23.04 Mya.

Early Cretaceous — about 0 of 940 occurrencesLate Cretaceous — about 613 of 940 occurrencesLate CretaceousPaleocene — about 323 of 940 occurrencesPaleoceneEocene — about 3 of 940 occurrencesEoceneOligocene — about 1 of 940 occurrencesOligoceneMiocene — about 0 of 940 occurrences102–99 Mya — about 6 occurrences99–97 Mya — about 15 occurrences97–94 Mya — about 15 occurrences94–91 Mya — about 23 occurrences91–89 Mya — about 14 occurrences89–86 Mya — about 3 occurrences86–83 Mya — about 4 occurrences83–81 Mya — about 4 occurrences81–78 Mya — about 4 occurrences78–75 Mya — about 4 occurrences75–73 Mya — about 4 occurrences73–70 Mya — about 198 occurrences70–67 Mya — about 224 occurrences67–64 Mya — about 207 occurrences64–62 Mya — about 195 occurrences62–59 Mya — about 12 occurrences59–56 Mya — about 4 occurrences56–54 Mya — about 0.6 occurrences48–46 Mya — about 0.8 occurrences46–43 Mya — about 0.9 occurrences43–40 Mya — about 0.8 occurrences40–38 Mya — about 0.5 occurrences35–32 Mya — about 0.2 occurrences32–30 Mya — about 0.2 occurrences30–27 Mya — about 0.2 occurrences27–24 Mya — about 0.2 occurrences24–21 Mya — about 0.1 occurrences93.9 Mya33.9 Mya102 Mya21 Mya

940 occurrences of Heterohelix 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

940 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

18 formations

El Haria — 36.19°N, 8.71°EEl Haria — 35.95°N, 9.10°EDakhla — 26.35°N, 33.02°ECorsicana — 31.13°N, 96.82°WWhite Chalk — 50.80°N, 0.18°ESecond White Specks — 49.50°N, 112.17°WSecond White Specks — 51.58°N, 111.00°WSecond White Specks — 53.00°N, 110.17°WJagüel — 38.11°S, 68.39°WJagüel — 39.77°S, 66.68°WBahloul — 34.13°N, 9.17°EBahloul — 34.12°N, 9.03°EDuwi — 30.05°N, 31.25°EScaglia Rossa Veneta — 45.56°N, 10.88°EScaglia Rossa Veneta — 45.62°N, 10.96°ELa Frontera — 2.89°N, 75.68°WLa Frontera — 4.54°N, 74.45°WPlenus Marl — 50.80°N, 0.18°EConway — 43.06°S, 172.58°EAmeki — 5.00°N, 7.50°EAguja — 28.83°N, 103.30°WLewes Nodular Chalk — 51.25°N, 2.16°WAbu Qada — 28.80°N, 34.48°EMexcala — 18.17°N, 98.94°WLoncoche — 37.56°S, 69.83°W

Loading coastlines…

The named rock units Heterohelix has been recovered from, largest first. Drawn where the rock is now, not where it formed. 24 occurrences have no formation on record, which is common for older literature.

Heterohelix and its relatives

Late Cretaceous

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

Found in the same rock

351 taxa

The Paleobiology Database records 280 sites for Heterohelix, and this reads 240 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

29 references

Each of the 940 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. 17 further references are not listed. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Heterohelix

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Heterohelix 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 itHeterohelicinae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ehrenberg 1843