Arcoscalpellum

Arcoscalpellum is a large genus of stalked barnacles found worldwide. It is classified in the family Scalpellidae, subfamily Scalpellinae, and species are found from shallow waters down to depths of over 5 kilometres. The genus is well-represented in the fossil record as far back as the Cretaceous period.

Arcoscalpellum

Ernst Haeckel · Public Domain · via Wikipedia/Commons. 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
ScalpellinaePBDB
Diet
suspension feederPBDB, for Cirripedia
Life habit
epifaunalPBDB, for Cirripedia
Motility
stationary, attached, epibiontPBDB, for Cirripedia
Vision
limitedPBDB, for Cirripedia

Time the record covers

At least 92 million years on record.

The record covers at least 119.57 Mya to 27.3 Mya. No occurrence read is dated outside 121.4 Mya to 23.04 Mya.

Early Cretaceous — about 3 of 65 occurrencesEarly CretaceousLate Cretaceous — about 52 of 65 occurrencesLate CretaceousPaleocene — about 1 of 65 occurrencesPaleoceneEocene — about 3 of 65 occurrencesEoceneOligocene — about 6 of 65 occurrencesOligoceneMiocene — about 0 of 65 occurrences123–120 Mya — about 0.8 occurrences120–117 Mya — about 0.2 occurrences106–103 Mya — about 1 occurrence103–99 Mya — about 1.0 occurrences99–96 Mya — about 0.5 occurrences96–93 Mya — about 0.3 occurrences93–89 Mya — about 0.1 occurrences89–86 Mya — about 0.8 occurrences86–82 Mya — about 2 occurrences82–79 Mya — about 6 occurrences79–76 Mya — about 6 occurrences76–72 Mya — about 6 occurrences72–69 Mya — about 17 occurrences69–65 Mya — about 14 occurrences65–62 Mya — about 0.8 occurrences62–59 Mya — about 0.1 occurrences59–55 Mya — about 0.1 occurrences55–52 Mya — about 0.4 occurrences52–48 Mya — about 0.4 occurrences48–45 Mya — about 0.0 occurrences42–38 Mya — about 0.9 occurrences38–35 Mya — about 0.9 occurrences35–31 Mya — about 1 occurrence31–28 Mya — about 2 occurrences28–24 Mya — about 2 occurrences24–21 Mya — about 1 occurrence119.57 Mya27.3 Mya123 Mya21 Mya

65 occurrences of Arcoscalpellum on record, most of them in the Late Cretaceous. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

65 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

18 formations

Ripley — 33.46°N, 88.77°WRipley — 33.39°N, 88.74°WMooreville Chalk — 32.84°N, 88.02°WMooreville Chalk — 33.49°N, 88.48°WMooreville Chalk — 32.95°N, 88.08°WMooreville Chalk — 32.96°N, 88.07°WMooreville Chalk — 32.93°N, 88.04°WMooreville Chalk — 32.78°N, 87.91°WMooreville Chalk — 33.07°N, 88.26°WLincoln Creek — 46.28°N, 123.81°WPrairie Bluff — 33.46°N, 88.79°WMount Laurel Sand — 39.79°N, 75.63°WPrairie Bluff Chalk — 32.60°N, 88.19°WGault — 51.30°N, 0.33°EGault — 51.12°N, 1.14°EPorters Creek — 31.90°N, 86.88°WYazoo — 31.66°N, 92.90°WAshley — 32.81°N, 80.11°WLondon Clay — 51.51°N, 0.24°EPaisslberg — 47.17°N, 11.00°EKiscell — 47.50°N, 19.08°EMaastricht — 50.80°N, 5.68°EIlundain Marls — 42.77°N, 1.80°WPeruc-Koryčany — 50.56°N, 14.08°EBrežno — 50.04°N, 15.69°EAtherfield Clay — 50.61°N, 1.36°W

Loading coastlines…

The named rock units Arcoscalpellum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Arcoscalpellum and its relatives

Late Cretaceous

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

Found in the same rock

402 taxa

The Paleobiology Database records 45 sites for Arcoscalpellum, 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

17 references

Each of the 65 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. 5 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 Arcoscalpellum

Credit
Ernst Haeckel
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Arcoscalpellum 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.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itScalpellinae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Hoek 1907)