Chiasmolithus

Chiasmolithus

Dr Paul R. Bown · 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
CoccolithaceaePBDB
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 89 million years on record.

The record covers at least 89.8 Mya to 129 ka. No occurrence read is dated outside 100.5 Mya to 0 Mya.

Early Cretaceous — about 0 of 1585 occurrencesLate Cretaceous — about 8 of 1585 occurrencesLate CretaceousPaleocene — about 158 of 1585 occurrencesPaleoceneEocene — about 1107 of 1585 occurrencesEoceneOligocene — about 177 of 1585 occurrencesOligoceneMiocene — about 40 of 1585 occurrencesMiocenePliocene — about 9 of 1585 occurrencesPleistocene — about 87 of 1585 occurrences103–99 Mya — about 0.0 occurrences99–96 Mya — about 0.1 occurrences96–92 Mya — about 0.9 occurrences92–89 Mya — about 1 occurrence89–85 Mya — about 0.1 occurrences85–82 Mya — about 0.4 occurrences82–79 Mya — about 0.7 occurrences79–75 Mya — about 0.7 occurrences75–72 Mya — about 0.8 occurrences72–68 Mya — about 2 occurrences68–65 Mya — about 12 occurrences65–62 Mya — about 37 occurrences62–58 Mya — about 76 occurrences58–55 Mya — about 70 occurrences55–51 Mya — about 111 occurrences51–48 Mya — about 108 occurrences48–44 Mya — about 212 occurrences44–41 Mya — about 234 occurrences41–38 Mya — about 238 occurrences38–34 Mya — about 149 occurrences34–31 Mya — about 70 occurrences31–27 Mya — about 51 occurrences27–24 Mya — about 60 occurrences24–21 Mya — about 21 occurrences21–17 Mya — about 9 occurrences17–14 Mya — about 7 occurrences14–10 Mya — about 7 occurrences10–6.8 Mya — about 8 occurrences6.8–3.4 Mya — about 9 occurrences3.4–0 Mya — about 90 occurrences89.8 Mya129 ka103 Mya0 Mya

1,585 occurrences of Chiasmolithus on record, most of them in the Eocene. 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

1,585 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

14 formations

Campo Bola — 51.74°S, 69.17°WCampo Bola — 52.17°S, 69.04°WBlue Bluff — 33.14°N, 81.76°WKuma — 44.74°N, 33.88°ECastle Hayne — 34.37°N, 77.84°WWadi Esh-Shallala — 31.57°N, 37.12°EWaipara Greensand — 43.07°S, 172.60°ELangental Beds — 27.40°S, 15.41°EWilliamsburg — 33.40°N, 79.93°WPorters Creek — 36.42°N, 89.56°WNovopavlovka — 44.74°N, 33.88°EAlma — 44.74°N, 33.88°EPaleocene subsurface — 42.49°S, 63.63°WPedro Luro — 39.50°S, 62.68°WPedro Luro — 39.71°S, 61.04°W

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The named rock units Chiasmolithus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1,555 occurrences have no formation on record, which is common for older literature.

Chiasmolithus and its relatives

Eocene

Where Chiasmolithus and its relatives were recorded in the Eocene.

Found in the same rock

323 taxa

The Paleobiology Database records 905 sites for Chiasmolithus, 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

56 references

Each of the 1,585 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. 44 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 Chiasmolithus

Source
GBIF
Credit
Dr Paul R. Bown
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Chiasmolithus 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 itCoccolithaceae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hay et al. 1966