Arachnophyllum

via iDigBio · via iDigBio. 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
- ArachnophyllidaePBDB
- Diet
- suspension feederPBDB, for Rugosa
- Life habit
- epifaunalPBDB, for Rugosa
- Motility
- stationary, attachedPBDB, for Rugosa
- Vision
- blindPBDB, for Anthozoa
- Environment
- marinePBDB, for Rugosa
Time the record covers
At least 11 million years on record.
The record covers at least 438.6 Mya to 426.7 Mya. No occurrence read is dated outside 443.1 Mya to 419.62 Mya.
32 occurrences of Arachnophyllum on record, most of them in the Silurian. 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
32 occurrences- Silurian100%
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
18 formations
- Louisville Limestone Formation6
- La Vieille Formation · Chaleurs Group5
- Scotch Grove Formation3
- Brassfield Formation2
- Fossil Hill Formation1
- Motol Formation1
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The named rock units Arachnophyllum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Arachnophyllum and its relatives
SilurianWhere Arachnophyllum and its relatives were recorded in the Silurian.
Found in the same rock
485 taxa- Favosites14 sites
- Heliolites14 sites
- Halysites12 sites
- Syringopora9 sites
- Alveolites8 sites
- Gastropoda8 sites
- Atrypa7 sites
- Coenites7 sites
- Nautiloidea7 sites
- Propora7 sites
- Calymene6 sites
- Clathrodictyon6 sites
- Leptaena6 sites
- Rugosa6 sites
- Bivalvia5 sites
- Cystiphyllum5 sites
- Dolerorthis5 sites
- Encrinurus5 sites
- Entelophyllum5 sites
- Favosites favosus5 sites
- Orthida5 sites
- Resserella5 sites
- Stromatopora5 sites
- Tryplasma5 sites
The Paleobiology Database records 22 sites for Arachnophyllum, 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
17 references- Silurian and Devonian Corals of the Falls of the Ohio6
- Paleontology and stratigraphy of the Silurian rocks of the Port Daniel-Black Cape Region, Gaspé5
- Silurian brachiopod and related benthic communities from carbonate platform and mound environments of Iowa and surrounding areas4
- Caradocian-Gedinnian echinoderm associations of Central and Eastern North America2
- Silurian and Lochkovian communities in the Prague basin (Barrandian area, Czech Republic)2
- The corals of the Brassfield Formation (mid-Llandovery, Lower Silurian) in the Cincinnati Arch Region2
- Significance of a halysitid-heliolitid mud-facies autobiostrome from the Middle Silurian of Gotland, Sweden1
- Trilobite assemblages of the North Atlantic Region1
- Paleoecologic, temporal, and spatial analysis of Early Silurian reefs of the Chicotte Formation, Anticosti Island, Quebec, Canada1
- Lower Silurian reefs and post-reef beds of the Attawapiskat Formation, Hudson Bay Platform, northern Ontario1
- Early Silurian Anthozoa of Chaleurs Group, Port Daniel-Black Cape region, Gaspe Peninsula, Quebec1
- Stratigraphy, structure, and zonation of large Silurian reef at Delphi, Indiana1
Each of the 32 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. 5 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 Arachnophyllum
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
3D model
- Source
- Sketchfab
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
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 itArachnophyllidae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Dana 1846