Xenascus

No picture of Xenascus 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 Xenascus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
CeratiaceaePBDB
Diet
"photoautotroph"PBDB, for Dinoflagellata
Environment
freshwaterPBDB, for Dinophyceae

Time the record covers

At least 10 million years on record.

The record covers at least 93.9 Mya to 83.6 Mya. No occurrence read is dated outside 113.2 Mya to 66 Mya.

Early Cretaceous — about 1 of 33 occurrencesEarly CretaceousLate Cretaceous — about 32 of 33 occurrencesLate CretaceousPaleocene — about 0 of 33 occurrences114–113 Mya — about 0.0 occurrences113–111 Mya — about 0.1 occurrences111–109 Mya — about 0.1 occurrences109–108 Mya — about 0.1 occurrences108–106 Mya — about 0.1 occurrences106–104 Mya — about 0.1 occurrences104–103 Mya — about 0.1 occurrences103–101 Mya — about 0.1 occurrences101–99 Mya — about 0.4 occurrences99–98 Mya — about 0.6 occurrences98–96 Mya — about 0.6 occurrences96–95 Mya — about 0.6 occurrences95–93 Mya — about 0.5 occurrences93–91 Mya — about 0.4 occurrences91–90 Mya — about 1 occurrence90–88 Mya — about 6 occurrences88–86 Mya — about 6 occurrences86–85 Mya — about 6 occurrences85–83 Mya — about 4 occurrences83–81 Mya — about 0.9 occurrences81–80 Mya — about 0.9 occurrences80–78 Mya — about 0.9 occurrences78–77 Mya — about 0.9 occurrences77–75 Mya — about 0.9 occurrences75–73 Mya — about 0.9 occurrences73–72 Mya — about 0.6 occurrences72–70 Mya — about 0.1 occurrences70–68 Mya — about 0.1 occurrences68–67 Mya — about 0.1 occurrences67–65 Mya — about 0.0 occurrences93.9 Mya83.6 Mya114.1 Mya65.1 Mya

33 occurrences of Xenascus 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

33 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

6 formations

Hidden Lake — 63.87°S, 57.99°WAbu Roash — 30.00°N, 28.00°EBahariya — 30.00°N, 28.00°EHidden Like — 63.84°S, 57.90°WSanta Marta — 63.88°S, 57.96°WLa Anita — 49.81°S, 72.18°W

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The named rock units Xenascus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Xenascus and its relatives

Late Cretaceous

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

Found in the same rock

190 taxa

The Paleobiology Database records 26 sites for Xenascus, 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

7 references

Each of the 33 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 Xenascus 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 Xenascus, or no answer at all. This entry cannot say which.

No 3D scan of Xenascus 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 itCeratiaceae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cookson and Eisenack