Permocalculus

Permocalculus is a genus of red algae known from Permian to Cretaceous strata. Closely aligned to Gymnocodium, it is placed in the Gymnocodiaceae.

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

On record

Recorded, not inferred
Sits inside
GymnocodiaceaePBDB
Diet
"photoautotroph"PBDB, for Gymnocodiaceae
Life habit
epifaunalPBDB, for Gymnocodiaceae
Motility
stationaryPBDB, for Gymnocodiaceae
Environment
coastal,inner shelf,marinePBDB, for Rhodophyceae

Time the record covers

At least 227 million years on record.

The record covers at least 293.52 Mya to 66 Mya. No occurrence read is dated outside 298.9 Mya to 48.07 Mya.

Carboniferous — about 0 of 169 occurrencesPermian — about 108 of 169 occurrencesPermianEarly Triassic — about 0 of 169 occurrencesMiddle Triassic — about 0 of 169 occurrencesLate Triassic — about 1 of 169 occurrencesLate TriassicEarly Jurassic — about 0 of 169 occurrencesMiddle Jurassic — about 1 of 169 occurrencesLate Jurassic — about 6 of 169 occurrencesEarly Cretaceous — about 39 of 169 occurrencesEarly CretaceousLate Cretaceous — about 13 of 169 occurrencesLate CretaceousPaleocene — about 1 of 169 occurrencesEocene — about 0 of 169 occurrences304–295 Mya — about 1 occurrence295–287 Mya — about 0.6 occurrences287–278 Mya — about 2 occurrences278–269 Mya — about 9 occurrences269–260 Mya — about 28 occurrences260–252 Mya — about 68 occurrences243–234 Mya — about 0.1 occurrences234–226 Mya — about 0.2 occurrences226–217 Mya — about 0.2 occurrences217–208 Mya — about 0.2 occurrences208–200 Mya — about 0.2 occurrences173–165 Mya — about 1 occurrence165–156 Mya — about 0.3 occurrences156–147 Mya — about 3 occurrences147–139 Mya — about 3 occurrences139–130 Mya — about 1 occurrence130–121 Mya — about 9 occurrences121–113 Mya — about 15 occurrences113–104 Mya — about 6 occurrences104–95 Mya — about 16 occurrences95–87 Mya — about 3 occurrences87–78 Mya — about 1 occurrence69–60 Mya — about 0.3 occurrences60–52 Mya — about 0.5 occurrences52–43 Mya — about 0.2 occurrences293.52 Mya66 Mya304 Mya43 Mya

169 occurrences of Permocalculus on record, most of them in the Permian. 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

169 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

35 formations

Changxing — 29.92°N, 106.43°EChangxing — 29.50°N, 106.40°EChangxing — 33.08°N, 106.91°EMauddud Limestone — 30.50°N, 47.68°EHeshan — 23.77°N, 108.86°EHeshan — 23.88°N, 108.86°EHeshan — 23.71°N, 109.24°ETaft — 31.62°N, 53.81°EMaokou — 24.88°N, 105.18°EGnishik — 38.98°N, 45.53°EKhachik — 39.56°N, 45.40°EKhachik — 39.83°N, 45.06°EKhachik — 39.95°N, 44.90°ESchrattenkalk — 47.43°N, 10.23°EMarno-calcaires à Heteraster oblongus — 38.77°N, 9.30°WNeoschwagerina Beds — 44.51°N, 15.23°EKhachik — 38.98°N, 45.53°EVarciorog — 46.95°N, 22.28°EVarciorog — 46.92°N, 22.30°EHalal — 30.80°N, 33.45°EHalal — 30.37°N, 33.52°EDelaware Mountain — 31.23°N, 104.51°WKhuff — 25.43°N, 49.62°EMural Limestone — 31.38°N, 109.75°WFalaise de Bikfaya — 33.92°N, 35.71°EChanghsing — 30.90°N, 119.93°ELamno — 5.50°N, 95.25°EPteroceriano — 38.93°N, 9.13°WCalcaires et silts de Ladeiras — 38.40°N, 9.22°WGrès inférieurs — 38.72°N, 9.45°WCalcaires récifaux supérieurs — 38.43°N, 9.35°WAssises à Orbitolines — 39.95°N, 9.42°W

Loading coastlines…

The named rock units Permocalculus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 further formations hold fewer occurrences each and are not listed. 69 occurrences have no formation on record, which is common for older literature.

Permocalculus and its relatives

Permian

Where Permocalculus and its relatives were recorded in the Permian.

Found in the same rock

885 taxa

The Paleobiology Database records 69 sites for Permocalculus, 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

57 references

Each of the 169 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. 44 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 Permocalculus 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 Permocalculus, or no answer at all. This entry cannot say which.

No 3D scan of Permocalculus was found in MorphoSource and Sketchfab.

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

The description on this site

Licence
CC BY-SA 4.0

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

Keep going

What may have been alongside itGymnocodiaceae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Elliott 1955