Rhipidium

via iDigBio · CC0 · 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
- PentameridaePBDB
- Diet
- suspension feederPBDB, for Pentamerida
- Life habit
- epifaunalPBDB, for Pentamerida
- Motility
- stationaryPBDB, for Pentamerida
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 5.6 million years on record.
The record covers at least 430.6 Mya to 425 Mya. No occurrence read is dated outside 432.9 Mya to 422.7 Mya.
25 occurrences of Rhipidium 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
25 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
12 formations
- Read Bay Formation6
- Cape Phillips Formation4
- Hidden Valley Dolomite Formation2
- Wabash Formation1
- Hogklint Beds Formation1
- Slite Beds Formation1
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The named rock units Rhipidium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Rhipidium and its relatives
SilurianWhere Rhipidium and its relatives were recorded in the Silurian.
Found in the same rock
431 taxa- Conchidium10 sites
- Leptaena8 sites
- Merista8 sites
- Nucleospira7 sites
- Atrypa6 sites
- Clorinda6 sites
- Amphistrophia5 sites
- Ancillotoechia5 sites
- Dalejina5 sites
- Dicoelosia5 sites
- Flabellitesia kessei5 sites
- Gracianella5 sites
- Halysites5 sites
- Isorthis5 sites
- Resserella canalis5 sites
- Skenidioides operosa5 sites
- Stegerhynchus5 sites
- Stegerhynchus estonicus5 sites
- Amsdenina4 sites
- Bumastus4 sites
- Caryogyps chattertoni4 sites
- Chonetoidea4 sites
- Cliftonia4 sites
- Eoplectodonta (Ygerodiscus)4 sites
The Paleobiology Database records 25 sites for Rhipidium, 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
13 references- Cornwallis and Little Cornwallis Islands, District of Franklin, Northwest Territories6
- Wenlockian (Silurian) brachiopods of the Cape Phillips Formation, Baillie Hamilton Island, Arctic Canada: part I4
- A review of Silurian brachiopods from Gotland3
- Silurian and Early Devonian benthic communities of the Ural-Tien Shan region2
- Silurian, Devonian, and Mississippian Formations of the Funeral Mountains in the Ryan Quadrangle, Death Valley Region, California2
- Caradocian-Gedinnian echinoderm associations of Central and Eastern North America1
- Silurian and Lochkovian communities in the Prague basin (Barrandian area, Czech Republic)1
- Habitat of Llandoverian-Lochkovian eurypterids1
- Australian communities1
- Silurian brachiopod and related benthic communities from carbonate platform and mound environments of Iowa and surrounding areas1
- Silurian (Wenlockian) brachiopods from southeastern California1
- Paleoecology and Petrology of Pipe Creek Jr. Reef (Niagaran-Cayugan), Grant County, Indiana1
Each of the 25 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. 1 further reference is 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 Rhipidium
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Rhipidium was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itPentameridae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Schuchert and Cooper 1931