Helicosphaera seminulum

Helicosphaera seminulum

Daniel Vaulot · CC0 · via GBIF. 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
HelicosphaeraPBDB
Diet
"photoautotroph"PBDB, for Haptophyta
Life habit
planktonic, depth=surfacePBDB, for Haptophyta
Motility
passively mobilePBDB, for Haptophyta
Environment
oceanic,oligotrophic,marine,brackishPBDB, for Haptophyta

Time the record covers

At least 56 million years on record.

The record covers at least 59.24 Mya to 2.58 Mya. No occurrence read is dated outside 66 Mya to 11.7 ka.

Late Cretaceous — about 0 of 168 occurrencesPaleocene — about 1 of 168 occurrencesPaleoceneEocene — about 22 of 168 occurrencesEoceneOligocene — about 98 of 168 occurrencesOligoceneMiocene — about 41 of 168 occurrencesMiocenePliocene — about 3 of 168 occurrencesPleistocene — about 3 of 168 occurrences67–65 Mya — about 0.1 occurrences65–63 Mya — about 0.3 occurrences63–61 Mya — about 0.3 occurrences61–58 Mya — about 0.2 occurrences56–54 Mya — about 0.8 occurrences54–52 Mya — about 0.8 occurrences52–49 Mya — about 0.8 occurrences49–47 Mya — about 2 occurrences47–45 Mya — about 4 occurrences45–43 Mya — about 4 occurrences43–40 Mya — about 4 occurrences40–38 Mya — about 4 occurrences38–36 Mya — about 1 occurrence36–34 Mya — about 2 occurrences34–31 Mya — about 17 occurrences31–29 Mya — about 17 occurrences29–27 Mya — about 18 occurrences27–25 Mya — about 25 occurrences25–22 Mya — about 24 occurrences22–20 Mya — about 15 occurrences20–18 Mya — about 9 occurrences18–16 Mya — about 8 occurrences16–13 Mya — about 1 occurrence13–11 Mya — about 1 occurrence11–9.0 Mya — about 0.6 occurrences9.0–6.7 Mya — about 0.6 occurrences6.7–4.5 Mya — about 1 occurrence4.5–2.2 Mya — about 2 occurrences2.2–0 Mya — about 3 occurrences59.24 Mya2.58 Mya67 Mya0 Mya

168 occurrences of Helicosphaera seminulum on record, most of them in the Oligocene. 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

168 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

2 formations

Blue Bluff — 33.14°N, 81.76°WCampo Bola — 52.17°S, 69.04°W

Loading coastlines…

The named rock units Helicosphaera seminulum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 166 occurrences have no formation on record, which is common for older literature.

Helicosphaera seminulum and its relatives

Oligocene

Where Helicosphaera seminulum and its relatives were recorded in the Oligocene.

Found in the same rock

118 taxa

The Paleobiology Database records 168 sites for Helicosphaera seminulum, 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

24 references

Each of the 168 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. 12 further references are 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

Picture of Helicosphaera seminulum

Source
GBIF
Credit
Daniel Vaulot
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Helicosphaera seminulum 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 itHelicosphaera through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Bramlette and Sullivan 1961)