Polytryphocycloides
No picture of Polytryphocycloides was found. Wikipedia, Wikidata and iDigBio were searched and had none. 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 Polytryphocycloides, 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 16 million years on record.
The record covers at least 449.6 Mya to 432.9 Mya. No occurrence read is dated outside 457.3 Mya to 426.7 Mya.
8 occurrences of Polytryphocycloides 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
8 occurrences- Ordovician25%
- Silurian75%
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
5 formations
- Dunleith Formation1
- Blanding Formation1
- Laurel Limestone Formation1
- Laurel Formation1
- Salamonie Dolomite Formation1
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The named rock units Polytryphocycloides has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Polytryphocycloides and its relatives
SilurianWhere Polytryphocycloides and its relatives were recorded in the Silurian.
Found in the same rock
162 taxa- Sievertsia4 sites
- Bryozoa3 sites
- Cyphocrinus3 sites
- Merista3 sites
- Thalamocrinus3 sites
- Anthozoa2 sites
- Astraeospongium2 sites
- Atrypa2 sites
- Calceocrinidae2 sites
- Calymenidae2 sites
- Dimerocrinites2 sites
- Eucalyptocrinites2 sites
- Favosites2 sites
- Holocystites (Holocystites) alternatus2 sites
- Isorthis2 sites
- Lecanocrinus2 sites
- Macrostylocrinus2 sites
- Pisocrinus2 sites
- Zophocrinus2 sites
- Abludoglyptocrinus1 site
- Acidaspis pectinata1 site
- Acolocrinus1 site
- Amphipsalidocrinus1 site
- Anastrophia1 site
The Paleobiology Database records 8 sites for Polytryphocycloides, 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
3 references- Caradocian-Gedinnian echinoderm associations of Central and Eastern North America5
- Non-Crinoid Pelmatozoa from the Paleozoic of Sweden2
- Upper Ordovician faunas of Ontario and Quebec1
Each of the 8 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 Polytryphocycloides was found. Wikipedia, Wikidata and iDigBio were searched and had none.
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 Polytryphocycloides, or no answer at all. This entry cannot say which.
No 3D scan of Polytryphocycloides 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 itCyclocystoididae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Smith and Paul 1982