Iocrinus subcrassus

Iocrinus subcrassus

via iDigBio · CC0 · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

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 7.1 million years on record.

Every occurrence read is dated to somewhere between 457.3 Mya and 450.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 16 of 16 occurrencesOrdovician458–457 Mya — about 0.1 occurrences457–457 Mya — about 0.5 occurrences457–457 Mya — about 0.5 occurrences457–456 Mya — about 0.5 occurrences456–456 Mya — about 0.5 occurrences456–456 Mya — about 0.5 occurrences456–456 Mya — about 0.5 occurrences456–455 Mya — about 0.5 occurrences455–455 Mya — about 0.5 occurrences455–455 Mya — about 0.5 occurrences455–455 Mya — about 0.5 occurrences455–454 Mya — about 0.5 occurrences454–454 Mya — about 0.5 occurrences454–454 Mya — about 0.5 occurrences454–453 Mya — about 0.8 occurrences453–453 Mya — about 0.8 occurrences453–453 Mya — about 0.8 occurrences453–453 Mya — about 0.8 occurrences453–452 Mya — about 0.8 occurrences452–452 Mya — about 0.8 occurrences452–452 Mya — about 0.8 occurrences452–452 Mya — about 0.8 occurrences452–451 Mya — about 0.8 occurrences451–451 Mya — about 0.8 occurrences451–451 Mya — about 0.7 occurrences451–451 Mya — about 0.7 occurrences451–450 Mya — about 0.7 occurrences450–450 Mya — about 0.1 occurrences457.8 Mya449.7 Mya

16 occurrences of Iocrinus subcrassus 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

16 occurrences

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 — 43.88°N, 75.49°WDenley Limestone — 43.21°N, 75.46°WSugar River Limestone — 44.00°N, 75.00°WSugar River Limestone — 43.00°N, 75.00°WMartinsburg — 40.48°N, 76.53°WSheguiandah — 45.95°N, 81.91°W

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The named rock units Iocrinus subcrassus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Iocrinus subcrassus and its relatives

Ordovician

Where Iocrinus subcrassus and its relatives were recorded in the Ordovician.

Found in the same rock

140 taxa

The Paleobiology Database records 16 sites for Iocrinus subcrassus, 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

5 references

Each of the 16 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 content1

Picture of Iocrinus subcrassus

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

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. (Meek and Worthen 1865)