Byssonychia radiata

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
- AmbonychiaPBDB
- Diet
- suspension feederPBDB, for Ambonychia
- Life habit
- epifaunalPBDB, for Ambonychia
- Motility
- stationary, attachedPBDB, for Ambonychia
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 2.2 million years on record.
The record covers at least 451 Mya to 448.8 Mya. No occurrence read is dated outside 458.2 Mya to 443.1 Mya.
31 occurrences of Byssonychia radiata on record, most of them in the Ordovician. 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
31 occurrences- Ordovician100%
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
13 formations
- Lorraine Formation8
- Nicolet River Formation3
- Leipers Formation2
- Lexington Limestone Formation2
- Arnheim Formation1
- Liberty Formation1
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The named rock units Byssonychia radiata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.
Byssonychia radiata and its relatives
OrdovicianWhere Byssonychia radiata and its relatives were recorded in the Ordovician.
Found in the same rock
337 taxa- Rafinesquina alternata11 sites
- Hallopora10 sites
- Pterinea demissa10 sites
- Zygospira modesta10 sites
- Lyrodesma poststriatum8 sites
- Cyrtolites ornatus6 sites
- Rafinesquina mucronata6 sites
- Amplexopora5 sites
- Catazyga headi5 sites
- Cincinnetina multisecta5 sites
- Cryptolithus5 sites
- Dekayia5 sites
- Flexicalymene5 sites
- Isotelus5 sites
- Paupospira bowdeni5 sites
- Peronopora5 sites
- Sowerbyella (Sowerbyella) sericea5 sites
- Archinacella pulaskiensis4 sites
- Bythocypris cylindrica4 sites
- Ceramoporella4 sites
- Clidophorus planulatus4 sites
- Cornulites4 sites
- Crinoidea4 sites
- Ctenobolbina ciliata4 sites
The Paleobiology Database records 31 sites for Byssonychia radiata, 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
12 references- Upper Ordovician faunas of Ontario and Quebec11
- Upper Ordovician bivalves from the Oslo Region, Norway5
- Lithostratigraphy and depositional environments of the Lexington Limestone (Ordovician) of central Kentucky2
- Late Ordovician benthic communities in north-central New York2
- Palaeozoic geology of the Lake Simcoe Area, Ontario2
- The coral horizons and stratigraphy of the upper Richmond Group in Kentucky west of the Cincinnati Arch2
- Pre-Chattanooga stratigraphy in Central Tennessee2
- Ordovician Polyplacophora (Mollusca) from North America1
- Upper Ordovician Ecology of the Central Appalachians1
- Central Appalachian Late Ordovician communities1
- The fossil fauna of the Ordovician in the Cincinnati Region1
- A new Ordovician eurypterid1
Each of the 31 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. 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 Byssonychia radiata
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Byssonychia radiata 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 itAmbonychia through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hall 1847)