Heterosphaeridium heteracanthum

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

On record

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

Time the record covers

At least 37 million years on record.

The record covers at least 121.4 Mya to 83.6 Mya. No occurrence read is dated outside 137.05 Mya to 66 Mya.

Early Cretaceous — about 2 of 24 occurrencesEarly CretaceousLate Cretaceous — about 22 of 24 occurrencesLate CretaceousPaleocene — about 0 of 24 occurrences138–136 Mya — about 0.1 occurrences136–134 Mya — about 0.2 occurrences134–131 Mya — about 0.2 occurrences131–129 Mya — about 0.2 occurrences129–126 Mya — about 0.2 occurrences126–124 Mya — about 0.2 occurrences124–121 Mya — about 0.1 occurrences114–111 Mya — about 0.1 occurrences111–109 Mya — about 0.1 occurrences109–106 Mya — about 0.1 occurrences106–104 Mya — about 0.1 occurrences104–102 Mya — about 0.1 occurrences102–99 Mya — about 0.6 occurrences99–97 Mya — about 0.9 occurrences97–94 Mya — about 0.9 occurrences94–92 Mya — about 0.9 occurrences92–89 Mya — about 2 occurrences89–87 Mya — about 6 occurrences87–84 Mya — about 6 occurrences84–82 Mya — about 2 occurrences82–79 Mya — about 0.7 occurrences79–77 Mya — about 0.7 occurrences77–74 Mya — about 0.7 occurrences74–72 Mya — about 0.7 occurrences72–70 Mya — about 0.1 occurrences70–67 Mya — about 0.1 occurrences67–65 Mya — about 0.1 occurrences121.4 Mya83.6 Mya138 Mya65 Mya

24 occurrences of Heterosphaeridium heteracanthum 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

24 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

4 formations

Hidden Lake — 63.87°S, 57.99°WWhisky Bay — 63.83°S, 58.13°WSanta Marta — 63.88°S, 57.96°WSanta Marta — 64.27°S, 57.30°WSpringhill — 52.77°S, 68.70°W

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The named rock units Heterosphaeridium heteracanthum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Heterosphaeridium heteracanthum and its relatives

Late Cretaceous

Where Heterosphaeridium heteracanthum and its relatives were recorded in the Late Cretaceous.

Found in the same rock

124 taxa

The Paleobiology Database records 19 sites for Heterosphaeridium heteracanthum, 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

4 references

Each of the 24 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 Heterosphaeridium heteracanthum 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 Heterosphaeridium heteracanthum, or no answer at all. This entry cannot say which.

No 3D scan of Heterosphaeridium heteracanthum 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 itHeterosphaeridium through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Eisennack and Kjellström 1972