Cucullaea (Idonearca) gravida

Cucullaea gravida (Gabb, 1864), a relative of Cucullaea (Idonearca) gravida — not Cucullaea (Idonearca) gravida itself

Not Cucullaea (Idonearca) gravida. This is Cucullaea gravida (Gabb, 1864), a relative — both are Cucullaeidae.

W. P. Popenoe · CC0 · 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
Cucullaea (Idonearca)PBDB
Diet
suspension feederPBDB, for Cucullaea
Life habit
infaunalPBDB, for Cucullaea
Motility
facultatively mobilePBDB, for Cucullaea
Vision
limitedPBDB, for Cucullaeidae

Time the record covers

At most 11 million years on record.

Every occurrence read is dated to somewhere between 100.5 Mya and 89.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Cretaceous — about 0 of 36 occurrencesLate Cretaceous — about 36 of 36 occurrencesLate Cretaceous101–100 Mya — about 0.0 occurrences100–100 Mya — about 0.1 occurrences100–99 Mya — about 0.1 occurrences99–99 Mya — about 0.1 occurrences99–99 Mya — about 0.1 occurrences99–98 Mya — about 0.1 occurrences98–98 Mya — about 0.1 occurrences98–97 Mya — about 0.1 occurrences97–97 Mya — about 0.1 occurrences97–97 Mya — about 0.1 occurrences97–96 Mya — about 0.1 occurrences96–96 Mya — about 0.1 occurrences96–96 Mya — about 0.1 occurrences96–95 Mya — about 0.1 occurrences95–95 Mya — about 0.1 occurrences95–94 Mya — about 0.1 occurrences94–94 Mya — about 0.1 occurrences94–94 Mya — about 3 occurrences94–93 Mya — about 3 occurrences93–93 Mya — about 3 occurrences93–92 Mya — about 3 occurrences92–92 Mya — about 3 occurrences92–92 Mya — about 3 occurrences92–91 Mya — about 3 occurrences91–91 Mya — about 3 occurrences91–90 Mya — about 3 occurrences90–90 Mya — about 3 occurrences90–90 Mya — about 2 occurrences101 Mya89.3 Mya

36 occurrences of Cucullaea (Idonearca) gravida 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

36 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

Redding — 40.68°N, 122.18°WRedding — 40.67°N, 122.14°WRedding — 40.64°N, 122.23°WLadd — 33.75°N, 117.64°WLadd — 33.75°N, 117.64°WPanoche — 35.88°N, 120.10°WPanoche — 37.31°N, 121.30°WVenado — 39.31°N, 122.34°WSidney Island — 48.60°N, 123.27°WAntelope — 39.36°N, 122.32°W

Loading coastlines…

The named rock units Cucullaea (Idonearca) gravida has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Cucullaea (Idonearca) gravida and its relatives

Late Cretaceous

Where Cucullaea (Idonearca) gravida and its relatives were recorded in the Late Cretaceous.

Found in the same rock

108 taxa

The Paleobiology Database records 35 sites for Cucullaea (Idonearca) gravida, 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 36 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 content2

Picture of Cucullaea gravida (Gabb, 1864)

Source
GBIF
Credit
W. P. Popenoe
Licence
CC0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial
Commercial use
the licence does not allow it

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 itCucullaea (Idonearca) through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Gabb 1864)