Gymnocodium

Gymnocoidum is a genus of calcareous alga known from Permian strata. For details of its classification, see Gymnocodiaceae.

No picture of Gymnocodium 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 Gymnocodium, 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 145 million years on record.

The record covers at least 266.9 Mya to 121.4 Mya. No occurrence read is dated outside 274.4 Mya to 119.57 Mya.

Permian — about 87 of 91 occurrencesPermianEarly Triassic — about 1 of 91 occurrencesMiddle Triassic — about 0 of 91 occurrencesLate Triassic — about 0 of 91 occurrencesEarly Jurassic — about 0 of 91 occurrencesMiddle Jurassic — about 0 of 91 occurrencesLate Jurassic — about 0 of 91 occurrencesEarly Cretaceous — about 3 of 91 occurrencesEarly Cretaceous277–272 Mya — about 1 occurrence272–267 Mya — about 3 occurrences267–261 Mya — about 14 occurrences261–256 Mya — about 12 occurrences256–251 Mya — about 57 occurrences138–133 Mya — about 1 occurrence122–116 Mya — about 2 occurrences266.9 Mya121.4 Mya277 Mya116 Mya

91 occurrences of Gymnocodium 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

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

16 formations

Changxing — 30.92°N, 119.99°EChangxing — 26.33°N, 105.93°EChangxing — 29.50°N, 106.40°EDelaware Mountain — 31.23°N, 104.51°WHeshan — 23.88°N, 108.86°EHeshan — 23.71°N, 109.24°EGnishik — 38.97°N, 45.53°EGnishik — 39.60°N, 45.15°EGnishik — 39.56°N, 45.40°EGnishik — 39.83°N, 45.06°EGnishik — 39.95°N, 44.94°EKhachik — 38.98°N, 45.53°ESchrattenkalk — 47.43°N, 10.23°EWardak — 34.11°N, 68.53°EJulfa — 39.83°N, 45.06°ELengwu — 29.80°N, 119.65°EChanghsing — 30.90°N, 119.93°EWerfen — 46.57°N, 11.63°EKhachik — 39.83°N, 45.06°EJulfa — 38.97°N, 45.53°EBellerophon — 46.56°N, 11.73°EVelebit — 44.34°N, 15.47°E

Loading coastlines…

The named rock units Gymnocodium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 14 occurrences have no formation on record, which is common for older literature.

Gymnocodium and its relatives

Permian

Where Gymnocodium and its relatives were recorded in the Permian.

Found in the same rock

406 taxa

The Paleobiology Database records 33 sites for Gymnocodium, 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

21 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. 8 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 Gymnocodium 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 Gymnocodium, or no answer at all. This entry cannot say which.

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

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. Pia 1927