Pterotheca

No picture of Pterotheca was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Pterotheca, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
BacillariophyceaePBDB
Diet
"photoautotroph"PBDB, for Bacillariophyceae
Environment
marine,brackish,freshwaterPBDB, for Bacillariophyceae

Time the record covers

At least 424 million years on record.

The record covers at least 458.2 Mya to 33.9 Mya. No occurrence read is dated outside 471.3 Mya to 27.3 Mya.

Ordovician — about 51 of 281 occurrencesSilurian — about 12 of 281 occurrencesDevonian — about 0 of 281 occurrencesCarboniferous — about 0 of 281 occurrencesPermian — about 0 of 281 occurrencesEarly Triassic — about 0 of 281 occurrencesMiddle Triassic — about 0 of 281 occurrencesLate Triassic — about 0 of 281 occurrencesEarly Jurassic — about 0 of 281 occurrencesMiddle Jurassic — about 0 of 281 occurrencesLate Jurassic — about 0 of 281 occurrencesEarly Cretaceous — about 0 of 281 occurrencesLate Cretaceous — about 111 of 281 occurrencesPaleocene — about 106 of 281 occurrencesEocene — about 0 of 281 occurrencesOligocene — about 1 of 281 occurrencesMiocene — about 0 of 281 occurrences480–465 Mya — about 0.5 occurrences465–449 Mya — about 45 occurrences449–434 Mya — about 16 occurrences434–419 Mya — about 2 occurrences95–80 Mya — about 28 occurrences80–65 Mya — about 98 occurrences65–49 Mya — about 91 occurrences49–34 Mya — about 0.0 occurrences34–18 Mya — about 1.0 occurrences458.2 Mya33.9 Mya480 Mya18 Mya

281 occurrences of Pterotheca 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

281 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

48 formations

Lopez de Bertodano — 64.25°S, 56.75°WMason River — 69.46°N, 126.97°WSobral — 64.25°S, 56.75°WChaumont — 45.45°N, 76.69°WChaumont — 45.88°N, 76.93°WChaumont — 45.41°N, 75.73°WChaumont — 45.43°N, 75.53°WBalclatchie — 54.48°N, 5.67°WBalclatchie — 55.21°N, 4.83°WBalclatchie — 55.23°N, 4.87°WKanguk — 75.63°N, 119.37°WKanguk — 79.00°N, 85.37°WNicolet River — 45.45°N, 73.28°WNicolet River — 45.79°N, 72.86°WLexington Limestone — 37.64°N, 84.66°WLexington Limestone — 37.77°N, 84.61°WBobcaygeon — 44.53°N, 78.55°WBobcaygeon — 45.88°N, 76.93°WSmoking Hills — 69.46°N, 126.97°WMulloch Hill — 55.24°N, 4.84°WMulloch Hill — 55.28°N, 4.73°WKimmswick limestone — 38.32°N, 90.38°WKimmswick limestone — 39.05°N, 90.66°WKraluv Dvur — 49.95°N, 14.03°ELowville — 45.45°N, 75.59°WLowville — 46.03°N, 81.77°WKorgessaare — 59.13°N, 24.47°EKorgessaare — 58.88°N, 22.95°EDecorah — 39.12°N, 90.97°WMcGregor — 40.78°N, 87.39°WXiushan — 29.02°N, 109.84°EVerulam — 44.75°N, 79.33°WKope — 39.00°N, 84.00°WLebanon Limestone — 35.50°N, 86.50°WCarters Limestone — 35.50°N, 86.50°WChaumont — 43.23°N, 75.07°WWether Law Linn — 55.81°N, 3.36°W

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The named rock units Pterotheca has been recovered from, largest first. Drawn where the rock is now, not where it formed. 24 further formations hold fewer occurrences each and are not listed. 1 occurrence has no formation on record, which is common for older literature.

Pterotheca and its relatives

Late Cretaceous

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

Found in the same rock

1,069 taxa

The Paleobiology Database records 138 sites for Pterotheca, 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

34 references

Each of the 281 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. 22 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 content0

No picture of Pterotheca was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Pterotheca, or no answer at all. This entry cannot say which.

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 itBacillariophyceae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Forti 1909