Aglaocrinus

Aglaocrinus is an extinct species of crinoids in the Cladia order. It has been proposed that it was a blind, stationary (attached) suspension feeder the hard parts of which were composed of magnesium calcite. It has been discovered in 3 locations in North America.

Aglaocrinus

Moore, Raymond C.; Jewett, J. M. · CC BY 4.0 · via GBIF. 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
CromyocrinidaePBDB
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 least 9.1 million years on record.

The record covers at least 312.8 Mya to 303.7 Mya. No occurrence read is dated outside 318.6 Mya to 287.6 Mya.

Carboniferous — about 5 of 7 occurrencesCarboniferousPermian — about 2 of 7 occurrencesPermian319–318 Mya — about 0.1 occurrences318–317 Mya — about 0.2 occurrences317–316 Mya — about 0.2 occurrences316–315 Mya — about 0.2 occurrences315–314 Mya — about 0.3 occurrences314–313 Mya — about 0.3 occurrences313–312 Mya — about 0.3 occurrences312–311 Mya — about 0.3 occurrences311–310 Mya — about 0.3 occurrences310–308 Mya — about 0.3 occurrences308–307 Mya — about 0.3 occurrences307–306 Mya — about 0.2 occurrences306–305 Mya — about 0.0 occurrences304–303 Mya — about 0.2 occurrences303–302 Mya — about 0.4 occurrences302–301 Mya — about 0.4 occurrences301–300 Mya — about 0.4 occurrences300–299 Mya — about 0.4 occurrences299–298 Mya — about 0.2 occurrences298–297 Mya — about 0.2 occurrences297–296 Mya — about 0.2 occurrences296–295 Mya — about 0.2 occurrences295–293 Mya — about 0.2 occurrences293–292 Mya — about 0.2 occurrences292–291 Mya — about 0.2 occurrences291–290 Mya — about 0.2 occurrences290–289 Mya — about 0.2 occurrences289–288 Mya — about 0.2 occurrences288–287 Mya — about 0.1 occurrences312.8 Mya303.7 Mya319.2 Mya287 Mya

7 occurrences of Aglaocrinus 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

7 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

5 formations

Naco — 34.33°N, 111.12°WKanwaka — 40.96°N, 95.85°WKanwaka — 41.15°N, 95.01°WStranger — 38.57°N, 95.40°WMinturn — 39.92°N, 106.77°WOread Limestone — 41.15°N, 95.01°W

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

Aglaocrinus and its relatives

Carboniferous

Where Aglaocrinus and its relatives were recorded in the Carboniferous.

Found in the same rock

60 taxa

The Paleobiology Database records 7 sites for Aglaocrinus, 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

Each of the 7 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 Aglaocrinus

Source
GBIF
Credit
Moore, Raymond C.; Jewett, J. M.
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itCromyocrinidae through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Strimple 1961