Uintacrinus socialis

Uintacrinus socialis

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
UintacrinusPBDB
Diet
suspension feederPBDB, for Comatulida
Life habit
intermediate-level epifaunalPBDB, for Comatulida
Motility
facultatively mobile, attachedPBDB, for Comatulida
Vision
blindPBDB, for Crinoidea
Environment
marinePBDB, for Comatulida

Time the record covers

At most 6.2 million years on record.

Every occurrence read is dated to somewhere between 89.8 Mya and 83.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Cretaceous — about 3 of 3 occurrencesLate Cretaceous90–90 Mya — about 0.1 occurrences90–89 Mya — about 0.1 occurrences89–89 Mya — about 0.1 occurrences89–89 Mya — about 0.1 occurrences89–89 Mya — about 0.1 occurrences89–88 Mya — about 0.1 occurrences88–88 Mya — about 0.1 occurrences88–88 Mya — about 0.1 occurrences88–88 Mya — about 0.1 occurrences88–87 Mya — about 0.1 occurrences87–87 Mya — about 0.1 occurrences87–87 Mya — about 0.1 occurrences87–87 Mya — about 0.1 occurrences87–86 Mya — about 0.1 occurrences86–86 Mya — about 0.1 occurrences86–86 Mya — about 0.1 occurrences86–86 Mya — about 0.1 occurrences86–86 Mya — about 0.2 occurrences86–85 Mya — about 0.2 occurrences85–85 Mya — about 0.2 occurrences85–85 Mya — about 0.2 occurrences85–85 Mya — about 0.2 occurrences85–84 Mya — about 0.2 occurrences84–84 Mya — about 0.2 occurrences84–84 Mya — about 0.2 occurrences84–84 Mya — about 0.2 occurrences90.3 Mya83.1 Mya

3 occurrences of Uintacrinus socialis on record, most of them in the Late Cretaceous. 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

3 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

3 formations

Niobrara — 38.75°N, 101.05°WWapiabi — 52.79°N, 116.86°WInoceramus Shales — 18.43°N, 77.18°W

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

Uintacrinus socialis and its relatives

Late Cretaceous

Where Uintacrinus socialis and its relatives were recorded in the Late Cretaceous.

Found in the same rock

14 taxa

The Paleobiology Database records 3 sites for Uintacrinus socialis, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

Each of the 3 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 Uintacrinus socialis

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 itUintacrinus through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Grinnell 1876