Nucleopygus

Nucleopygus

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
CassidulidaePBDB
Diet
detritivorePBDB, for Cassiduloida
Life habit
semi-infaunalPBDB, for Cassiduloida
Motility
slow-movingPBDB, for Cassiduloida
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 55 million years on record.

The record covers at least 121.4 Mya to 66 Mya. No occurrence read is dated outside 125.77 Mya to 61.66 Mya.

Early Cretaceous — about 3 of 60 occurrencesEarly CretaceousLate Cretaceous — about 55 of 60 occurrencesLate CretaceousPaleocene — about 2 of 60 occurrencesPaleocene127–125 Mya — about 0.2 occurrences125–123 Mya — about 0.5 occurrences123–120 Mya — about 0.4 occurrences120–118 Mya — about 0.3 occurrences118–116 Mya — about 0.3 occurrences116–114 Mya — about 0.3 occurrences114–111 Mya — about 0.1 occurrences107–105 Mya — about 0.3 occurrences105–103 Mya — about 0.4 occurrences103–100 Mya — about 0.7 occurrences100–98 Mya — about 7 occurrences98–96 Mya — about 7 occurrences96–94 Mya — about 6 occurrences94–91 Mya — about 3 occurrences91–89 Mya — about 3 occurrences89–87 Mya — about 2 occurrences87–85 Mya — about 2 occurrences85–83 Mya — about 1 occurrence83–80 Mya — about 0.3 occurrences80–78 Mya — about 0.3 occurrences78–76 Mya — about 0.3 occurrences76–74 Mya — about 0.3 occurrences74–71 Mya — about 3 occurrences71–69 Mya — about 9 occurrences69–67 Mya — about 9 occurrences67–65 Mya — about 5 occurrences65–63 Mya — about 0.9 occurrences63–60 Mya — about 0.4 occurrences121.4 Mya66 Mya127 Mya60 Mya

60 occurrences of Nucleopygus 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

60 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

12 formations

Maastricht — 50.85°N, 5.70°EMaastricht — 50.85°N, 5.77°EMaastricht — 50.86°N, 5.79°EMaastricht — 50.80°N, 5.67°EGulpen — 50.80°N, 5.67°ECabo de Lata — 43.49°N, 3.79°WCabo de Lata — 42.84°N, 2.18°WCraie de Villedieu — 45.00°N, 0.37°EGulpen — 50.85°N, 5.70°EB3/C1 — 45.93°N, 0.98°WAustin Chalk — 30.25°N, 97.75°WMount Peace — 18.38°N, 78.13°WSimsima — 24.87°N, 55.95°ERiacheulo — 10.76°S, 37.08°WRoca — 38.14°S, 67.14°W

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The named rock units Nucleopygus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 26 occurrences have no formation on record, which is common for older literature.

Nucleopygus and its relatives

Late Cretaceous

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

Found in the same rock

516 taxa

The Paleobiology Database records 46 sites for Nucleopygus, 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

16 references

Each of the 60 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. 4 further references are not listed. 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 Nucleopygus

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Nucleopygus was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itCassidulidae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Agassiz 1840