Pycinaster

Pycinaster

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
PycinasteridaePBDB
Diet
carnivorePBDB, for Asteroidea
Life habit
low-level epifaunalPBDB, for Asteroidea
Motility
slow-movingPBDB, for Asteroidea
Vision
limitedPBDB, for Asteroidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 128 million years on record.

The record covers at least 184.2 Mya to 56 Mya. No occurrence read is dated outside 192.9 Mya to 48.07 Mya.

Early Jurassic — about 1 of 31 occurrencesEarly JurassicMiddle Jurassic — about 0 of 31 occurrencesLate Jurassic — about 0 of 31 occurrencesEarly Cretaceous — about 2 of 31 occurrencesEarly CretaceousLate Cretaceous — about 25 of 31 occurrencesLate CretaceousPaleocene — about 1 of 31 occurrencesEocene — about 2 of 31 occurrences196–191 Mya — about 0.2 occurrences191–186 Mya — about 0.6 occurrences186–181 Mya — about 0.2 occurrences136–131 Mya — about 0.6 occurrences131–126 Mya — about 1 occurrence105–100 Mya — about 0.1 occurrences100–95 Mya — about 5 occurrences95–90 Mya — about 4 occurrences90–85 Mya — about 6 occurrences85–80 Mya — about 3 occurrences80–75 Mya — about 0.9 occurrences75–70 Mya — about 2 occurrences70–65 Mya — about 4 occurrences65–60 Mya — about 0.8 occurrences60–55 Mya — about 0.2 occurrences55–50 Mya — about 1 occurrence50–45 Mya — about 0.5 occurrences184.2 Mya56 Mya196 Mya45 Mya

31 occurrences of Pycinaster 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

31 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

11 formations

Wilmington Sands — 50.80°N, 0.18°EMarnes de Foncouverte — 43.15°N, 2.57°EMarnes de Foncouverte — 43.17°N, 2.70°EGulpen — 50.73°N, 5.67°EPierre jaune — 47.02°N, 6.98°EWhite Chalk — 54.52°N, 13.63°ESables de Montormel — 48.97°N, 0.05°WLa Tonnelle — 46.85°N, 1.88°WUpper Greensand — 50.80°N, 0.18°ECalcaires à Baculites — 49.43°N, 1.35°WCharmouthien — 49.27°N, 0.80°WBilá — 49.98°N, 15.60°E

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The named rock units Pycinaster has been recovered from, largest first. Drawn where the rock is now, not where it formed. 18 occurrences have no formation on record, which is common for older literature.

Pycinaster and its relatives

Late Cretaceous

Where Pycinaster and its relatives were recorded in the Late Cretaceous.

Found in the same rock

485 taxa

The Paleobiology Database records 30 sites for Pycinaster, 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

11 references

Each of the 31 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 Pycinaster

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 itPycinasteridae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Spencer 1907