Helenea chiastia

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

On record

Recorded, not inferred
Sits inside
HeleneaPBDB
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 35 million years on record.

The record covers at least 125.77 Mya to 89.8 Mya. No occurrence read is dated outside 132.6 Mya to 85.7 Mya.

Early Cretaceous — about 4 of 14 occurrencesEarly CretaceousLate Cretaceous — about 10 of 14 occurrencesLate Cretaceous134–132 Mya — about 0.1 occurrences132–130 Mya — about 0.2 occurrences130–129 Mya — about 0.2 occurrences129–127 Mya — about 0.2 occurrences127–125 Mya — about 0.3 occurrences125–124 Mya — about 0.4 occurrences124–122 Mya — about 0.4 occurrences122–121 Mya — about 0.2 occurrences114–112 Mya — about 0.1 occurrences112–111 Mya — about 0.3 occurrences111–109 Mya — about 0.3 occurrences109–108 Mya — about 0.3 occurrences108–106 Mya — about 0.3 occurrences106–104 Mya — about 0.3 occurrences104–103 Mya — about 0.3 occurrences103–101 Mya — about 0.3 occurrences101–99 Mya — about 1 occurrence99–98 Mya — about 2 occurrences98–96 Mya — about 2 occurrences96–95 Mya — about 2 occurrences95–93 Mya — about 1 occurrence93–91 Mya — about 0.7 occurrences91–90 Mya — about 0.7 occurrences90–88 Mya — about 0.4 occurrences88–86 Mya — about 0.4 occurrences86–85 Mya — about 0.2 occurrences125.77 Mya89.8 Mya133.5 Mya84.8 Mya

14 occurrences of Helenea chiastia 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

14 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

1 formation

Lindi — 10.02°S, 39.65°E

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The named rock units Helenea chiastia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 occurrences have no formation on record, which is common for older literature.

Helenea chiastia and its relatives

Late Cretaceous

Where Helenea chiastia and its relatives were recorded in the Late Cretaceous.

Found in the same rock

145 taxa

The Paleobiology Database records 14 sites for Helenea chiastia, 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

5 references

Each of the 14 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 Helenea chiastia 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 Helenea chiastia, or no answer at all. This entry cannot say which.

No 3D scan of Helenea chiastia 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 itHelenea through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Worsley 1971