Anemia

Anemia is a genus of ferns. It is the only genus in the family Anemiaceae in the Pteridophyte Phylogeny Group classification of 2016. Alternatively, the genus may be placed as the only genus in the subfamily Anemioideae of a more broadly defined family Schizaeaceae, the family placement used in Plants of the World Online as of November 2019. Its species are sometimes called flowering ferns, but this term is more commonly applied to ferns of the genus Osmunda. Fronds are dimorphic; in fertile fronds, the two lowermost pinnae are highly modified to bear the sporangia.

Anemia

No machine-readable author provided. Valérie75 assumed (based on copyright claims). · 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
AnemiaceaePBDB
Diet
"photoautotroph"PBDB, for Streptophyta

Time the record covers

At least 77 million years on record.

The record covers at least 125.77 Mya to 48.07 Mya. No occurrence read is dated outside 137.05 Mya to 33.9 Mya.

Early Cretaceous — about 9 of 52 occurrencesEarly CretaceousLate Cretaceous — about 17 of 52 occurrencesLate CretaceousPaleocene — about 18 of 52 occurrencesPaleoceneEocene — about 8 of 52 occurrencesEoceneOligocene — about 0 of 52 occurrences139–136 Mya — about 0.1 occurrences136–132 Mya — about 0.3 occurrences132–128 Mya — about 0.3 occurrences128–125 Mya — about 1 occurrence125–121 Mya — about 3 occurrences114–111 Mya — about 0.8 occurrences111–107 Mya — about 1 occurrence107–103 Mya — about 1 occurrence103–100 Mya — about 2 occurrences100–96 Mya — about 3 occurrences96–93 Mya — about 2 occurrences93–89 Mya — about 0.1 occurrences89–85 Mya — about 0.1 occurrences85–82 Mya — about 1 occurrence82–78 Mya — about 3 occurrences78–75 Mya — about 3 occurrences75–71 Mya — about 2 occurrences71–68 Mya — about 1 occurrence68–64 Mya — about 4 occurrences64–60 Mya — about 6 occurrences60–57 Mya — about 7 occurrences57–53 Mya — about 4 occurrences53–50 Mya — about 2 occurrences50–46 Mya — about 2 occurrences46–43 Mya — about 1 occurrence43–39 Mya — about 0.6 occurrences39–35 Mya — about 0.2 occurrences35–32 Mya — about 0.1 occurrences125.77 Mya48.07 Mya139 Mya32 Mya

52 occurrences of Anemia on record, most of them in the Paleocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

52 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

19 formations

Fort Union — 41.55°N, 108.70°WFort Union — 47.10°N, 104.72°WFort Union — 47.32°N, 106.92°WFort Union — 41.63°N, 107.55°WFort Union — 40.59°N, 107.69°WFort Union — 47.13°N, 107.52°WFort Union — 45.83°N, 109.95°WFort Union — 43.64°N, 104.89°WFort Union — 43.70°N, 104.70°WEagle — 44.98°N, 108.87°WAspen Shale — 42.09°N, 110.51°WAspen Shale — 42.08°N, 110.16°WAspen Shale — 43.66°N, 111.33°WBagshot — 50.70°N, 2.03°WFrontier — 41.79°N, 110.54°WFrontier — 41.56°N, 110.57°WLaramie — 44.00°N, 110.00°WLaramie — 39.06°N, 104.17°WMiddle Park — 40.07°N, 106.10°WDawson Arkose — 39.22°N, 104.22°WDawson Arkose — 38.93°N, 104.60°WNaturita — 39.00°N, 109.00°WHelvetiafjellet — 78.10°N, 13.93°EWoolwich — 51.38°N, 0.10°WLondon Clay — 50.93°N, 1.48°WHorseshoe Canyon — 51.47°N, 112.77°WRaton — 37.18°N, 104.57°WMesaverde — 39.33°N, 108.21°WAnimas — 37.03°N, 107.20°WWayan — 43.16°N, 111.29°WCedar Mountain — 39.15°N, 110.91°WAllenby — 49.45°N, 120.57°W

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The named rock units Anemia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Anemia and its relatives

Paleocene

Where Anemia and its relatives were recorded in the Paleocene.

Found in the same rock

349 taxa

The Paleobiology Database records 35 sites for Anemia, 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

20 references

Each of the 52 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 content2

Picture of Anemia

Credit
No machine-readable author provided. Valérie75 assumed (based on copyright claims).
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itAnemiaceae through timeFormations of the PaleoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Swartz 1806