Actinodiscus
No picture of Actinodiscus was found. iDigBio was searched and had none. Wikidata has a picture filed under this name, but nothing tied it to Actinodiscus itself, so it was not used. Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Actinodiscus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- CyclocystoididaePBDB
- Life habit
- low-level epifaunalPBDB, for Cyclocystoidea
- Motility
- stationaryPBDB, for Cyclocystoidea
- Environment
- marinePBDB, for Cyclocystoidea
Time the record covers
At least 1.4 million years on record.
The record covers at least 450.2 Mya to 448.8 Mya. No occurrence read is dated outside 451 Mya to 445.2 Mya.
5 occurrences of Actinodiscus 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
5 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
4 formations
- Dubuque Formation · Galena Group2
- Stewartville Formation1
- Wise Lake Formation · Galena Group1
- South Threave Formation · Drummock Group1
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The named rock units Actinodiscus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Actinodiscus and its relatives
OrdovicianWhere Actinodiscus and its relatives were recorded in the Ordovician.
Found in the same rock
75 taxa- Amecystis4 sites
- Cyclocystoides4 sites
- Porocrinus3 sites
- Astrocystites2 sites
- Carabocrinus2 sites
- Carabocrinus radiatus2 sites
- Cremacrinus2 sites
- Cupulocrinus2 sites
- Ectenocrinus simplex2 sites
- Eumorphocystis2 sites
- Glyptocystitid sp. n. gen.2 sites
- Merocrinus2 sites
- Quienquecaudex springeri2 sites
- Rhaphanocrinus2 sites
- Sivertsia sp.2 sites
- Tanaocystis2 sites
- Anulocrinus1 site
- Arjamannia thraivensis1 site
- Aulechinus1 site
- Boucotspira ordovicus1 site
- Bucanopsis nicoli1 site
- Carcassonnella multilineata1 site
- Cataschisma convexa1 site
- Cheirocrinus constrictus1 site
The Paleobiology Database records 5 sites for Actinodiscus, 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
2 referencesEach of the 5 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 content0
No picture of Actinodiscus was found. iDigBio was searched and had none.
Wikidata has a picture filed under this name, but nothing tied it to Actinodiscus itself, so it was not used.
Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Actinodiscus, or no answer at all. This entry cannot say which.
No 3D scan of Actinodiscus 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 itCyclocystoididae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Smith and Paul 1982