Acrostichum

Jim Conrad, modified by User:Jaknouse · Public Domain · via Wikidata/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
- ParkerioideaePBDB
- Diet
- "photoautotroph"PBDB, for Streptophyta
Time the record covers
At least 55 million years on record.
The record covers at least 56 Mya to 11.7 ka. No occurrence read is dated outside 61.66 Mya to 0 Mya.
76 occurrences of Acrostichum on record, most of them in the Eocene. 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
76 occurrencesThese 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
9 formations
- Yaw Formation46
- Okinoyama Formation · Ube Group10
- Green River Formation4
- Bagshot Formation2
- Eifel Formation1
- Headon Beds Formation1
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The named rock units Acrostichum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.
Acrostichum and its relatives
EoceneWhere Acrostichum and its relatives were recorded in the Eocene.
Found in the same rock
626 taxa- Verrucatosporites47 sites
- Laevigatosporites46 sites
- Deltoidospora45 sites
- Sapotaceoidaepollenites41 sites
- Verrucatosporites usmensis41 sites
- Euphorbiaceae38 sites
- Proxapertites operculatus38 sites
- Longapertites37 sites
- Cupanieidites34 sites
- Discoidites34 sites
- Cupuliferoipollenites33 sites
- Saxosporis33 sites
- Rubiaceae32 sites
- Campnosperma31 sites
- Dicolpopollis31 sites
- Anthocerisporis27 sites
- Meyeripollis naharkotensis27 sites
- Palaquium27 sites
- Proxapertites27 sites
- Selaginella25 sites
- Meliaceae24 sites
- Palmaepollenites kutchensis24 sites
- Calophyllumpollenites23 sites
- Margocolporites23 sites
The Paleobiology Database records 75 sites for Acrostichum, 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
15 references- A proto-monsoonal climate in the late Eocene of Southeast Asia: evidence from a sedimentary record in central Myanmar46
- The Eocene flora of the Ube coal-field, southwest Honshu, Japan10
- Late Paleocene-early Eocene climate changes in southwestern Wyoming: Paleobotanical analysis3
- A Catalogue of Fossil Plants from India Part 6: Cenozoic (Quaternary) Palynology and Palaeobotany3
- The Eocene Green River Flora of northwestern Colorado and northeastern Utah2
- Chandler, 19632
- The Lower Tertiary Floras of Southern England. II. Flora of the Pipe-Clay Series of Dorset (Lower Bagshot)2
- Late Paleocene fossils from the Cerrejón Formation, Colombia, are the earliest record of Neotropical rainforest1
- Exceptionally well preserved late Quaternary plant and vertebrate fossils from a blue hole on Abaco, The Bahamas1
- The Middle Eocene plant taphocoenosis from Eckfeld (Eifel, Germany)1
- Fossil plants of the Eocene Clarno Nut Beds1
- Flora of the Lower Headon Beds of Hampshire and the Isle of Wight1
Each of the 76 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. 3 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 Acrostichum
- Source
- Wikidata/Commons
- Credit
- Jim Conrad, modified by User:Jaknouse
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Acrostichum 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itParkerioideae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Linnaeus 1753