Gleichenia

Gleichenia is a genus of ferns. Its closest relative is the genus Stromatopteris, restricted to New Caledonia.

Gleichenia

Melburnian · CC BY 3.0 · via Wikipedia/Commons. 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
GleicheniaceaePBDB
Diet
"photoautotroph"PBDB, for Streptophyta

Time the record covers

At least 174 million years on record.

The record covers at least 174.7 Mya to 11.7 ka. No occurrence read is dated outside 201.4 Mya to 0 Mya.

Late Triassic — about 0 of 100 occurrencesEarly Jurassic — about 2 of 100 occurrencesEarly JurassicMiddle Jurassic — about 5 of 100 occurrencesLate Jurassic — about 19 of 100 occurrencesLate JurassicEarly Cretaceous — about 18 of 100 occurrencesEarly CretaceousLate Cretaceous — about 14 of 100 occurrencesLate CretaceousPaleocene — about 2 of 100 occurrencesEocene — about 0 of 100 occurrencesOligocene — about 4 of 100 occurrencesMiocene — about 5 of 100 occurrencesMiocenePliocene — about 0 of 100 occurrencesPleistocene — about 31 of 100 occurrences205–199 Mya — about 0.1 occurrences199–192 Mya — about 0.4 occurrences192–185 Mya — about 0.4 occurrences185–178 Mya — about 1 occurrence178–171 Mya — about 1.0 occurrences171–164 Mya — about 3 occurrences164–157 Mya — about 6 occurrences157–151 Mya — about 7 occurrences151–144 Mya — about 7 occurrences144–137 Mya — about 2 occurrences137–130 Mya — about 2 occurrences130–123 Mya — about 2 occurrences123–116 Mya — about 2 occurrences116–110 Mya — about 3 occurrences110–103 Mya — about 5 occurrences103–96 Mya — about 9 occurrences96–89 Mya — about 4 occurrences89–82 Mya — about 0.6 occurrences82–75 Mya — about 0.9 occurrences75–68 Mya — about 0.9 occurrences68–62 Mya — about 2 occurrences34–27 Mya — about 3 occurrences27–21 Mya — about 3 occurrences21–14 Mya — about 2 occurrences14–6.8 Mya — about 0.9 occurrences6.8–0 Mya — about 32 occurrences174.7 Mya11.7 ka205 Mya0 Mya

100 occurrences of Gleichenia on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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

100 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

26 formations

Naturita — 39.11°N, 109.14°WNaturita — 39.00°N, 109.00°WNaturita — 39.16°N, 109.07°WRajmahal — 25.08°N, 87.74°ERajmahal — 25.21°N, 87.50°ERajmahal — 24.65°N, 87.79°ERajmahal — 20.52°N, 85.63°EGangapur — 19.27°N, 79.43°EBansa — 23.76°N, 81.46°EMorwell — 38.23°S, 146.62°ECheyenne Sandstone — 37.45°N, 99.08°WTullock — 46.58°N, 105.88°WTullock — 47.10°N, 104.72°WYallourn — 38.22°S, 146.56°ESokolovskaya Series — 43.70°N, 27.80°EHaughton — 75.41°N, 89.43°WAthgarh — 20.50°N, 85.80°EJabalpur — 22.50°N, 78.50°EUpper Kabaktinsk Suite — 57.00°N, 125.00°ELower Kabaktinsk Suite — 57.00°N, 125.00°EBalabansai — 40.00°N, 70.50°ECretaceous — 43.43°N, 103.67°WCorwin — 69.51°N, 162.76°WKrivorechenskaya — 64.48°N, 168.92°ESainte-Barbe Clays — 50.48°N, 3.65°EWayan — 43.16°N, 111.29°WHalf Three Point — 62.15°S, 58.73°WDubrajpur — 24.32°N, 87.27°EDhrangadhra — 22.61°N, 71.22°EGardeshwar — 21.89°N, 73.66°E

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The named rock units Gleichenia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 further formations hold fewer occurrences each and are not listed. 48 occurrences have no formation on record, which is common for older literature.

Gleichenia and its relatives

Pleistocene

Where Gleichenia and its relatives were recorded in the Pleistocene.

Found in the same rock

1,095 taxa

The Paleobiology Database records 75 sites for Gleichenia, 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

33 references

Each of the 100 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. 21 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 Gleichenia

Credit
Melburnian
Licence
CC BY 3.0
Commercial use
the licence allows it

No 3D scan of Gleichenia 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 itGleicheniaceae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Smith 1793