Oligosphaeridium complex

Oligosphaeridium complex

via iDigBio · CC BY · via iDigBio. 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
OligosphaeridiumPBDB
Diet
"photoautotroph"PBDB, for Dinoflagellata
Environment
freshwaterPBDB, for Dinophyceae

Time the record covers

At least 60 million years on record.

The record covers at least 132.6 Mya to 72.2 Mya. No occurrence read is dated outside 143.1 Mya to 66 Mya.

Late Jurassic — about 0 of 91 occurrencesEarly Cretaceous — about 36 of 91 occurrencesEarly CretaceousLate Cretaceous — about 55 of 91 occurrencesLate CretaceousPaleocene — about 0 of 91 occurrences145–142 Mya — about 0.0 occurrences142–139 Mya — about 0.1 occurrences139–137 Mya — about 0.6 occurrences137–134 Mya — about 3 occurrences134–131 Mya — about 2 occurrences131–129 Mya — about 2 occurrences129–126 Mya — about 2 occurrences126–123 Mya — about 3 occurrences123–121 Mya — about 3 occurrences121–118 Mya — about 3 occurrences118–115 Mya — about 3 occurrences115–113 Mya — about 3 occurrences113–110 Mya — about 3 occurrences110–107 Mya — about 2 occurrences107–105 Mya — about 2 occurrences105–102 Mya — about 2 occurrences102–99 Mya — about 10 occurrences99–97 Mya — about 18 occurrences97–94 Mya — about 18 occurrences94–91 Mya — about 3 occurrences91–89 Mya — about 2 occurrences89–86 Mya — about 0.4 occurrences86–83 Mya — about 0.6 occurrences83–80 Mya — about 0.7 occurrences80–78 Mya — about 0.7 occurrences78–75 Mya — about 0.7 occurrences75–72 Mya — about 0.7 occurrences72–70 Mya — about 1 occurrence70–67 Mya — about 1 occurrence67–64 Mya — about 0.5 occurrences132.6 Mya72.2 Mya145 Mya64 Mya

91 occurrences of Oligosphaeridium complex 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

91 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

12 formations

Apollonian — 4.98°N, 3.02°WAbu Roash — 30.00°N, 28.00°ERiachuelo — 10.65°S, 37.04°WSpringhill — 52.77°S, 68.70°WSix Hills — 25.50°N, 29.00°ESix Hills — 25.50°N, 29.25°ESanta Marta — 63.88°S, 57.96°WSanta Marta — 64.21°S, 57.18°WTalme Yafe — 31.65°N, 34.61°EPampa Rincón — 52.77°S, 68.70°WCalafate — 50.38°S, 72.20°WLadegardsaen — 82.42°N, 23.17°WPedersen — 63.92°S, 58.25°WAgrio — 38.42°S, 70.00°W

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The named rock units Oligosphaeridium complex has been recovered from, largest first. Drawn where the rock is now, not where it formed. 39 occurrences have no formation on record, which is common for older literature.

Oligosphaeridium complex and its relatives

Late Cretaceous

Where Oligosphaeridium complex and its relatives were recorded in the Late Cretaceous.

Found in the same rock

303 taxa

The Paleobiology Database records 75 sites for Oligosphaeridium complex, 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

17 references

Each of the 91 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. 5 further references are not listed. 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 content1

Picture of Oligosphaeridium complex

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

What may have been alongside itOligosphaeridium through timeFormations of the Late CretaceousThe world it lived on

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