Iocrinus trentonensis
No picture of Iocrinus trentonensis was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Iocrinus trentonensis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- IocrinusPBDB
- Diet
- suspension feederPBDB, for Iocrinus
- Life habit
- intermediate-level epifaunalPBDB, for Iocrinus
- Motility
- stationary, attachedPBDB, for Iocrinus
- Vision
- blindPBDB, for Crinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At most 13 million years on record.
Every occurrence read is dated to somewhere between 457.3 Mya and 445.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
9 occurrences of Iocrinus trentonensis 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
9 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
- Denley Limestone Formation5
- Sugar River Limestone Formation · Lower Trenton Group2
- Bobcaygeon-Verulam Formation · Simcoe Group1
- Verulam Formation · Simcoe Group1
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The named rock units Iocrinus trentonensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Iocrinus trentonensis and its relatives
OrdovicianWhere Iocrinus trentonensis and its relatives were recorded in the Ordovician.
Found in the same rock
89 taxa- Eridotrypa mutabilis7 sites
- Paucicrura rogata7 sites
- Stictopora7 sites
- Ceraurus pleurexanthemus6 sites
- Isotelus gigas6 sites
- Flexicalymene (Flexicalymene) senaria5 sites
- Prasopora5 sites
- Amplexopora4 sites
- Iocrinus subcrassus4 sites
- Platystrophia4 sites
- Cincinnaticrinus varibrachialus3 sites
- Cupulocrinus3 sites
- Dekayia3 sites
- Endoceras proteiforme3 sites
- Graptodictya3 sites
- Newportopora3 sites
- Pachydictya3 sites
- Rafinesquina praecursor3 sites
- Sowerbyella (Sowerbyella) sericea3 sites
- Sowerbyella kayi3 sites
- Trematis terminalis3 sites
- Amorphognathus2 sites
- Anazyga recurvirostra2 sites
- Archaeocrinus maraensis2 sites
The Paleobiology Database records 9 sites for Iocrinus trentonensis, 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
4 references- R. Titus unpublished collections4
- Disparid and hybocrinid crinoids (Echinodermata) from the Upper Ordovician (lower Katian) Brechin Lagerstätte of Ontario2
- Fossil communities of the lower Trenton Group (Middle Ordovician) of central and northwestern New York State2
- Fossil Communities of the Middle Trenton Group (Ordovician) of New York State1
Each of the 9 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 Iocrinus trentonensis was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Iocrinus trentonensis, or no answer at all. This entry cannot say which.
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itIocrinus through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Walcott 1883