Cyclosorus

Cyclosorus is a genus of ferns in the family Thelypteridaceae, subfamily Thelypteridoideae, in the Pteridophyte Phylogeny Group classification of 2016. Other sources sink Cyclosorus into a very broadly defined genus Thelypteris, or expand the genus to include other genera which PPG I keeps separate. Thus the online Flora of China suggests there are about 250 species compared to the two species suggested in PPG I.

Cyclosorus

Forest & Kim Starr · 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
ThelypteridoideaePBDB
Diet
"photoautotroph"PBDB, for Streptophyta

Time the record covers

At least 33 million years on record.

The record covers at least 33.9 Mya to 129 ka. No occurrence read is dated outside 48.07 Mya to 0 Mya.

Eocene — about 6 of 18 occurrencesEoceneOligocene — about 0 of 18 occurrencesMiocene — about 0 of 18 occurrencesPliocene — about 0 of 18 occurrencesPleistocene — about 12 of 18 occurrences49–47 Mya — about 0.0 occurrences47–46 Mya — about 0.1 occurrences46–44 Mya — about 0.1 occurrences44–42 Mya — about 0.1 occurrences42–41 Mya — about 0.1 occurrences41–39 Mya — about 0.1 occurrences39–38 Mya — about 0.3 occurrences38–36 Mya — about 2 occurrences36–34 Mya — about 2 occurrences34–33 Mya — about 0.6 occurrences3.3–1.6 Mya — about 2 occurrences1.6–0 Mya — about 10 occurrences33.9 Mya129 ka49 Mya0 Mya

18 occurrences of Cyclosorus 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

18 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

2 formations

Yaw — 23.23°N, 94.25°ELiuqu — 29.17°N, 87.75°E

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The named rock units Cyclosorus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 occurrences have no formation on record, which is common for older literature.

Cyclosorus and its relatives

Pleistocene

Where Cyclosorus and its relatives were recorded in the Pleistocene.

Found in the same rock

288 taxa

The Paleobiology Database records 18 sites for Cyclosorus, 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

5 references

Each of the 18 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 content1

Picture of Cyclosorus

Credit
Forest & Kim Starr
Licence
CC BY 3.0
Commercial use
the licence allows it

No 3D scan of Cyclosorus 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.

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 itThelypteridoideae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Link 1833