Polysphaeridium

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

On record

Recorded, not inferred
Sits inside
DinoflagellataPBDB
Diet
"photoautotroph"PBDB, for Dinoflagellata
Environment
lagoonal,coastal,inner shelf,outer shelf,marine,brackish,freshwaterPBDB, for Dinoflagellata

Time the record covers

At least 148 million years on record.

The record covers at least 149.2 Mya to 774 ka. No occurrence read is dated outside 165.3 Mya to 11.7 ka.

Middle Jurassic — about 0 of 21 occurrencesLate Jurassic — about 1 of 21 occurrencesLate JurassicEarly Cretaceous — about 1 of 21 occurrencesEarly CretaceousLate Cretaceous — about 3 of 21 occurrencesLate CretaceousPaleocene — about 0 of 21 occurrencesEocene — about 12 of 21 occurrencesEoceneOligocene — about 0 of 21 occurrencesMiocene — about 1 of 21 occurrencesMiocenePliocene — about 0 of 21 occurrencesPleistocene — about 3 of 21 occurrences169–163 Mya — about 0.1 occurrences163–157 Mya — about 0.3 occurrences157–152 Mya — about 0.3 occurrences152–146 Mya — about 0.2 occurrences107–101 Mya — about 1 occurrence101–96 Mya — about 2 occurrences96–90 Mya — about 0.6 occurrences90–84 Mya — about 0.2 occurrences84–79 Mya — about 0.2 occurrences79–73 Mya — about 0.2 occurrences73–67 Mya — about 0.2 occurrences67–62 Mya — about 0.0 occurrences51–45 Mya — about 3 occurrences45–39 Mya — about 6 occurrences39–34 Mya — about 2 occurrences28–22 Mya — about 0.2 occurrences22–17 Mya — about 0.8 occurrences5.6–0 Mya — about 3 occurrences149.2 Mya774 ka169 Mya0 Mya

21 occurrences of Polysphaeridium 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

21 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

8 formations

Areniscas de el Limbo — 4.90°N, 73.02°WSan Fernando — 4.90°N, 73.02°WTalme Yafe — 31.65°N, 34.61°ECarbonera — 7.70°N, 72.62°WBlue Clay — 40.47°N, 17.30°ELangpar — 25.20°N, 91.77°EKuma — 44.74°N, 33.88°ECastle Hayne — 34.37°N, 77.84°W

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The named rock units Polysphaeridium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Polysphaeridium and its relatives

Eocene

Where Polysphaeridium and its relatives were recorded in the Eocene.

Found in the same rock

311 taxa

The Paleobiology Database records 17 sites for Polysphaeridium, 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

8 references

Each of the 21 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 content0

No picture of Polysphaeridium was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access 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 Polysphaeridium, or no answer at all. This entry cannot say which.

No 3D scan of Polysphaeridium 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.

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

Keep going

What may have been alongside itDinoflagellata through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Davey and Williams 1966