Sigmomorphina

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

On record

Recorded, not inferred
Sits inside
PolymorphinidaePBDB
Diet
omnivorePBDB, for Foraminifera
Life habit
semi-infaunalPBDB, for Foraminifera
Motility
stationaryPBDB, for Foraminifera

Time the record covers

At least 50 million years on record.

The record covers at least 66 Mya to 15.98 Mya. No occurrence read is dated outside 72.2 Mya to 5.333 Mya.

Late Cretaceous — about 4 of 40 occurrencesLate CretaceousPaleocene — about 0 of 40 occurrencesPaleoceneEocene — about 6 of 40 occurrencesEoceneOligocene — about 2 of 40 occurrencesOligoceneMiocene — about 28 of 40 occurrencesMiocenePliocene — about 0 of 40 occurrences74–71 Mya — about 0.6 occurrences71–69 Mya — about 1 occurrence69–67 Mya — about 1 occurrence67–64 Mya — about 0.5 occurrences64–62 Mya — about 0.2 occurrences62–60 Mya — about 0.0 occurrences39–36 Mya — about 2 occurrences36–34 Mya — about 4 occurrences34–32 Mya — about 0.6 occurrences32–29 Mya — about 0.2 occurrences29–27 Mya — about 0.2 occurrences27–25 Mya — about 0.8 occurrences25–23 Mya — about 1 occurrence23–20 Mya — about 3 occurrences20–18 Mya — about 3 occurrences18–16 Mya — about 3 occurrences16–13 Mya — about 10 occurrences13–11 Mya — about 7 occurrences11–8.6 Mya — about 0.9 occurrences8.6–6.3 Mya — about 0.9 occurrences6.3–4.0 Mya — about 0.4 occurrences66 Mya15.98 Mya74 Mya4 Mya

40 occurrences of Sigmomorphina on record, most of them in the Miocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

40 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

Yazoo — 31.82°N, 92.33°WRosefield — 31.89°N, 92.00°WIhungia — 40.35°S, 176.28°EKeasey — 45.87°N, 123.32°WHesquiat — 49.67°N, 126.87°WRoca — 39.67°S, 67.53°W

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The named rock units Sigmomorphina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 33 occurrences have no formation on record, which is common for older literature.

Sigmomorphina and its relatives

Miocene

Where Sigmomorphina and its relatives were recorded in the Miocene.

Found in the same rock

691 taxa

The Paleobiology Database records 30 sites for Sigmomorphina, 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

11 references

Each of the 40 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 Sigmomorphina was found. Wikidata and iDigBio were searched and had none.

Wikipedia and 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 Sigmomorphina, or no answer at all. This entry cannot say which.

No 3D scan of Sigmomorphina 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 itPolymorphinidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cushman and Ozawa 1928