Pleurocrinus

Pleurocrinus

via iDigBio · CC BY · 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
PlatycrinitidaePBDB
Diet
suspension feederPBDB, for Monobathrida
Life habit
upper-level epifaunalPBDB, for Monobathrida
Motility
stationary, attachedPBDB, for Monobathrida
Vision
blindPBDB, for Crinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 78 million years on record.

The record covers at least 342.9 Mya to 264.28 Mya. No occurrence read is dated outside 351.9 Mya to 254.14 Mya.

Carboniferous — about 14 of 32 occurrencesCarboniferousPermian — about 18 of 32 occurrencesPermian354–350 Mya — about 1.0 occurrences350–347 Mya — about 2 occurrences347–344 Mya — about 6 occurrences344–340 Mya — about 5 occurrences340–337 Mya — about 0.5 occurrences296–293 Mya — about 0.8 occurrences293–289 Mya — about 4 occurrences289–286 Mya — about 3 occurrences286–283 Mya — about 3 occurrences283–279 Mya — about 0.7 occurrences279–276 Mya — about 0.7 occurrences276–273 Mya — about 1 occurrence273–269 Mya — about 2 occurrences269–266 Mya — about 2 occurrences266–262 Mya — about 1 occurrence262–259 Mya — about 0.7 occurrences259–256 Mya — about 0.1 occurrences256–252 Mya — about 0.0 occurrences342.9 Mya264.28 Mya354 Mya252 Mya

32 occurrences of Pleurocrinus on record, most of them in the Permian. 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

32 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

6 formations

Lake Valley — 32.72°N, 107.57°WLake Valley — 32.93°N, 105.90°WLake Valley — 32.82°N, 107.66°WFeltrim — 53.43°N, 6.20°WCallytharra — 25.88°S, 115.50°ESalthill Cap Beds — 53.87°N, 2.40°WAl Jil — 21.90°N, 59.44°ETrold Fiord — 80.08°N, 81.75°W

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The named rock units Pleurocrinus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 occurrences have no formation on record, which is common for older literature.

Pleurocrinus and its relatives

Permian

Where Pleurocrinus and its relatives were recorded in the Permian.

Found in the same rock

344 taxa

The Paleobiology Database records 18 sites for Pleurocrinus, 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

9 references

Each of the 32 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 Pleurocrinus

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
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 itPlatycrinitidae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Austin and Austin 1843