Onychium
Onychium is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae.

Keisotyo · CC BY-SA 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
- PteridaceaePBDB
- Diet
- "photoautotroph"PBDB, for Streptophyta
Time the record covers
At most 2.6 million years on record.
Every occurrence read is dated to somewhere between 2.58 Mya and 0 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Onychium 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
4 occurrences- Pleistocene100%
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.
Onychium and its relatives
PleistoceneWhere Onychium and its relatives were recorded in the Pleistocene.
Found in the same rock
79 taxa- Apiaceae4 sites
- Cyperaceae4 sites
- Poaceae4 sites
- Arecaceae3 sites
- Artemisia3 sites
- Asteraceae3 sites
- Campanula3 sites
- Caryophyllaceae3 sites
- Cerealia3 sites
- Lemna3 sites
- Malvaceae3 sites
- Nephrodium3 sites
- Polygonum3 sites
- Potamogeton3 sites
- Syzygium3 sites
- Woodwardia3 sites
- Alternanthera2 sites
- Ceriops2 sites
- Drynaria2 sites
- Excoecaria2 sites
- Heritiera2 sites
- Ilex2 sites
- Impatiens2 sites
- Jasminum2 sites
The Paleobiology Database records 4 sites for Onychium, 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
1 referenceEach of the 4 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content1
Picture of Onychium
- Source
- Wikipedia/Commons
- Credit
- Keisotyo
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Onychium 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
- Source
- Wikipedia, “Onychium”
- 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 itPteridaceae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Kaulfuss 1820