Stephanocrinus
No picture of Stephanocrinus 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 Stephanocrinus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- StephanocrinidaePBDB
- Diet
- suspension feederPBDB
- Life habit
- intermediate-level epifaunalPBDB
- Motility
- stationary, attachedPBDB
- Vision
- blindPBDB, for Coronata
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 15 million years on record.
The record covers at least 448.8 Mya to 432.9 Mya. No occurrence read is dated outside 452.8 Mya to 422.7 Mya.
30 occurrences of Stephanocrinus 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
30 occurrences- Ordovician18%
- Silurian82%
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
15 formations
- Osgood Shale Formation6
- Rochester Formation · Clinton Group4
- Rochester Shale Formation · Clinton Group3
- Racine Formation2
- Osgood Formation2
- Irondequoit Formation · Clinton Group2
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The named rock units Stephanocrinus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Stephanocrinus and its relatives
SilurianWhere Stephanocrinus and its relatives were recorded in the Silurian.
Found in the same rock
531 taxa- Lecanocrinus15 sites
- Favosites13 sites
- Dalmanites12 sites
- Eucalyptocrinites12 sites
- Atrypa11 sites
- Leptaena rhomboidalis11 sites
- Eospirifer radiatus10 sites
- Lyriocrinus10 sites
- Enterolasma9 sites
- Plectatrypa9 sites
- Stegerhynchus9 sites
- Atrypa reticularis8 sites
- Caryocrinites8 sites
- Nucleospira8 sites
- Platyceras8 sites
- Whitfieldella nitida8 sites
- Anastrophia7 sites
- Dawsonoceras7 sites
- Dicoelosia7 sites
- Dimerocrinites7 sites
- Eodictyonella7 sites
- Icthyocrinus7 sites
- Whitfieldella7 sites
- Brachyprion (Protomegastrophia) profunda6 sites
The Paleobiology Database records 25 sites for Stephanocrinus, 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
8 references- Caradocian-Gedinnian echinoderm associations of Central and Eastern North America9
- Coronate echinoderms from the lower Palaeozoic of Britain6
- The Clinton of Western and Central New York6
- Wenlockian fossil communities in New York State and adjacent areas: Paleontology and Paleoecology3
- The Silurian (Wenlockian) reef fauna of Southeastern Wisconsin2
- Osgood (Niagaran) bryozoans from the type area2
- Species-abundance models: an ecological approach to inferring paleoenvironment and resolving paleoecological change in the Waldron Shale (Silurian)1
- Silurian stratigraphy and palæontology of the Niagara escarpment in Ontario1
Each of the 30 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 Stephanocrinus 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 Stephanocrinus, or no answer at all. This entry cannot say which.
No 3D scan of Stephanocrinus 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 itStephanocrinidae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Conrad 1842