Alcimocrinus

Alcimocrinus

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
ZeacrinitidaePBDB
Diet
suspension feederPBDB, for Cladida
Life habit
intermediate-level epifaunalPBDB, for Cladida
Motility
stationary, attachedPBDB, for Cladida
Vision
blindPBDB, for Crinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At most 8.2 million years on record.

Every occurrence read is dated to somewhere between 323.4 Mya and 315.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Carboniferous — about 2 of 2 occurrencesCarboniferous324–323 Mya — about 0.0 occurrences323–323 Mya — about 0.1 occurrences323–323 Mya — about 0.1 occurrences323–322 Mya — about 0.1 occurrences322–322 Mya — about 0.1 occurrences322–322 Mya — about 0.1 occurrences322–321 Mya — about 0.1 occurrences321–321 Mya — about 0.1 occurrences321–321 Mya — about 0.1 occurrences321–321 Mya — about 0.1 occurrences321–320 Mya — about 0.1 occurrences320–320 Mya — about 0.1 occurrences320–320 Mya — about 0.1 occurrences320–319 Mya — about 0.1 occurrences319–319 Mya — about 0.1 occurrences319–319 Mya — about 0.1 occurrences319–318 Mya — about 0.1 occurrences318–318 Mya — about 0.0 occurrences318–318 Mya — about 0.0 occurrences318–317 Mya — about 0.0 occurrences317–317 Mya — about 0.0 occurrences317–317 Mya — about 0.0 occurrences317–317 Mya — about 0.0 occurrences317–316 Mya — about 0.0 occurrences316–316 Mya — about 0.0 occurrences316–316 Mya — about 0.0 occurrences316–315 Mya — about 0.0 occurrences315–315 Mya — about 0.0 occurrences323.9 Mya314.7 Mya

2 occurrences of Alcimocrinus on record, most of them in the Carboniferous. 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

2 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

2 formations

Atoka — 34.53°N, 96.47°WMorrow — 35.83°N, 95.23°W

Loading coastlines…

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

Alcimocrinus and its relatives

Carboniferous

Where Alcimocrinus and its relatives were recorded in the Carboniferous.

Found in the same rock

32 taxa

The Paleobiology Database records 2 sites for Alcimocrinus, 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 reference

Each of the 2 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 content1

Picture of Alcimocrinus

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

No 3D scan of Alcimocrinus 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 itZeacrinitidae through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Kirk 1938