Pyrgocystis sardesoni
No picture of Pyrgocystis sardesoni 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 Pyrgocystis sardesoni, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PyrgocystisPBDB
- Diet
- suspension feederPBDB, for Edrioasteroidea
- Life habit
- low-level epifaunalPBDB, for Edrioasteroidea
- Motility
- stationary, attached, epibiontPBDB, for Edrioasteroidea
- Vision
- limitedPBDB, for Edrioasteroidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At most 7.7 million years on record.
Every occurrence read is dated to somewhere between 457.3 Mya and 449.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
7 occurrences of Pyrgocystis sardesoni 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
7 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
5 formations
- Ion Formation · Galena Group2
- Dunleith Formation · Galena Group2
- Decorah Shale Formation1
- Cummingsville Formation1
- Quimbys Mill Formation1
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The named rock units Pyrgocystis sardesoni has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Pyrgocystis sardesoni and its relatives
OrdovicianWhere Pyrgocystis sardesoni and its relatives were recorded in the Ordovician.
Found in the same rock
35 taxa- Carabocrinus7 sites
- Hemicystites7 sites
- Pleurocystites squamosus7 sites
- Glyptocrinus6 sites
- Pycnocrinus6 sites
- Cupulocrinus humilis5 sites
- Amecystis woodi4 sites
- Cremacrinus4 sites
- Porocrinus4 sites
- Cincinnaticrinus varibrachialus3 sites
- Cremacrinus guttenbergensis3 sites
- Cupulocrinus3 sites
- Cupulocrinus canaliculatus3 sites
- Cupulocrinus jewetti3 sites
- Dendrocrinus3 sites
- Grenprisa billingsi3 sites
- Hybocrinus conicus3 sites
- Agelacrinites2 sites
- Archaeocrinus2 sites
- Ateleocystites2 sites
- Cyclocystoides2 sites
- Edrioaster bigsbyi2 sites
- Neobothriocidaris2 sites
- Pegoasterella pompom2 sites
The Paleobiology Database records 7 sites for Pyrgocystis sardesoni, 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
1 referenceEach of the 7 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Pyrgocystis sardesoni 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 Pyrgocystis sardesoni, or no answer at all. This entry cannot say which.
No 3D scan of Pyrgocystis sardesoni 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 itPyrgocystis through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Bather 1915