Pterotocrinus

Pterotocrinus

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
DichocrinidaePBDB
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 most 13 million years on record.

Every occurrence read is dated to somewhere between 335.9 Mya and 323.4 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Carboniferous — about 81 of 81 occurrencesCarboniferous336–336 Mya — about 2 occurrences336–335 Mya — about 3 occurrences335–335 Mya — about 3 occurrences335–334 Mya — about 3 occurrences334–334 Mya — about 3 occurrences334–333 Mya — about 3 occurrences333–333 Mya — about 3 occurrences333–332 Mya — about 3 occurrences332–332 Mya — about 3 occurrences332–331 Mya — about 3 occurrences331–331 Mya — about 3 occurrences331–331 Mya — about 3 occurrences331–330 Mya — about 4 occurrences330–330 Mya — about 6 occurrences330–329 Mya — about 6 occurrences329–329 Mya — about 6 occurrences329–328 Mya — about 6 occurrences328–328 Mya — about 6 occurrences328–327 Mya — about 6 occurrences327–327 Mya — about 6 occurrences327–327 Mya — about 0.8 occurrences327–326 Mya — about 0.2 occurrences326–326 Mya — about 0.2 occurrences326–325 Mya — about 0.2 occurrences325–325 Mya — about 0.2 occurrences325–324 Mya — about 0.2 occurrences324–324 Mya — about 0.2 occurrences324–323 Mya — about 0.1 occurrences336.4 Mya322.9 Mya

81 occurrences of Pterotocrinus 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

81 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

9 formations

Bangor Limestone — 34.52°N, 87.58°WBangor Limestone — 34.59°N, 87.63°WGlen Dean Limestone — 38.25°N, 86.54°WGlen Dean Limestone — 38.40°N, 86.59°WGlen Dean Limestone — 38.17°N, 86.57°WGlen Dean Limestone — 37.48°N, 86.30°WGlen Dean Limestone — 38.23°N, 86.47°WGlen Dean Limestone — 37.83°N, 86.60°WGlen Dean Limestone — 37.65°N, 86.55°WGlen Dean Limestone — 36.94°N, 84.54°WGolconda — 39.08°N, 86.82°WGolconda — 38.67°N, 86.82°WGolconda — 38.66°N, 86.73°WGolconda — 38.30°N, 86.47°WGolconda — 38.23°N, 86.53°WGolconda — 38.23°N, 86.43°WFraileys Shale — 37.10°N, 87.80°WFraileys Shale — 37.34°N, 88.08°WFraileys Shale — 39.00°N, 90.58°WFraileys Shale — 37.38°N, 88.48°WFraileys Shale — 37.33°N, 88.50°WHaney Limestone — 38.25°N, 86.37°WHaney Limestone — 38.28°N, 86.35°WRedoak Hollow — 34.37°N, 97.34°WFraileys — 38.33°N, 90.02°WNewman — 37.91°N, 83.86°WBig Clifty — 38.24°N, 86.49°W

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

Pterotocrinus and its relatives

Carboniferous

Where Pterotocrinus and its relatives were recorded in the Carboniferous.

Found in the same rock

272 taxa

The Paleobiology Database records 56 sites for Pterotocrinus, 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

7 references

Each of the 81 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 Pterotocrinus

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 itDichocrinidae through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lyon and Casseday 1859