Calappa

Calappa is a genus of crabs known commonly as box crabs or shame-faced crabs. The name box crab comes from their distinctly bulky carapace, and the name shame-faced is from anthropomorphising the way the crab's chelae (claws) fold up and cover its face, as if it were hiding its face in shame. The name calappa is associated with kelapa, the Malay word for 'coconut'.

Calappa

E. Morcel (transmis via Philippe Boujon) · CC BY-SA 3.0 · 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
CalappidaePBDB
Diet
carnivorePBDB, for Decapoda
Life habit
semi-infaunalPBDB, for Calappidae
Motility
actively mobilePBDB, for Malacostraca
Vision
well-developedPBDB, for Malacostraca

Time the record covers

At least 33 million years on record.

The record covers at least 33.9 Mya to 11.7 ka. No occurrence read is dated outside 66 Mya to 0 Mya.

Late Cretaceous — about 0 of 94 occurrencesPaleocene — about 0 of 94 occurrencesPaleoceneEocene — about 3 of 94 occurrencesEoceneOligocene — about 7 of 94 occurrencesOligoceneMiocene — about 64 of 94 occurrencesMiocenePliocene — about 11 of 94 occurrencesPleistocene — about 7 of 94 occurrences67–65 Mya — about 0.0 occurrences65–63 Mya — about 0.1 occurrences63–61 Mya — about 0.1 occurrences61–58 Mya — about 0.1 occurrences58–56 Mya — about 0.1 occurrences56–54 Mya — about 0.1 occurrences54–52 Mya — about 0.1 occurrences52–49 Mya — about 0.1 occurrences49–47 Mya — about 0.1 occurrences47–45 Mya — about 0.1 occurrences45–43 Mya — about 0.1 occurrences43–40 Mya — about 0.1 occurrences40–38 Mya — about 0.1 occurrences38–36 Mya — about 1 occurrence36–34 Mya — about 1 occurrence34–31 Mya — about 1 occurrence31–29 Mya — about 1 occurrence29–27 Mya — about 1 occurrence27–25 Mya — about 1 occurrence25–22 Mya — about 2 occurrences22–20 Mya — about 4 occurrences20–18 Mya — about 4 occurrences18–16 Mya — about 4 occurrences16–13 Mya — about 8 occurrences13–11 Mya — about 12 occurrences11–9.0 Mya — about 13 occurrences9.0–6.7 Mya — about 12 occurrences6.7–4.5 Mya — about 8 occurrences4.5–2.2 Mya — about 9 occurrences2.2–0 Mya — about 9 occurrences33.9 Mya11.7 ka67 Mya0 Mya

94 occurrences of Calappa on record, most of them in the Miocene. The Paleobiology Database records this as a living group. 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

94 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

36 formations

Cercado — 19.46°N, 71.10°WCercado — 19.46°N, 71.19°WGatun — 9.35°N, 79.82°WGurabo — 19.48°N, 71.18°WGurabo — 19.53°N, 71.28°WCastillo — 10.37°N, 70.05°WOak Grove — 30.93°N, 86.56°WSandakan — 5.86°N, 118.04°ESandakan — 5.88°N, 118.06°EUpper Bhuban — 22.91°N, 92.74°EUpper Coralline Limestone — 35.93°N, 14.33°EUpper Coralline Limestone — 35.92°N, 14.38°EChipola — 30.53°N, 85.87°WChipola — 30.47°N, 85.16°WMiri — 4.86°N, 114.80°EMandog — 7.07°N, 125.57°EYazoo — 31.66°N, 92.90°WLa Meseta — 64.24°S, 56.61°WLares — 18.33°N, 66.95°WCastell'Arquato — 44.86°N, 9.88°EMazantic Shale — 16.00°N, 92.00°WMoin — 9.99°N, 83.03°WChoctawhatchee — 30.64°N, 86.12°WShoal River — 30.79°N, 86.35°WAshawaq — 17.00°N, 53.00°EMiri — 4.15°N, 113.85°ETano — 31.94°N, 131.26°EMint Springs — 31.98°N, 89.33°WLeitha-limestone — 46.93°N, 17.45°E

Loading coastlines…

The named rock units Calappa has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 further formations hold fewer occurrences each and are not listed. 29 occurrences have no formation on record, which is common for older literature.

Calappa and its relatives

Miocene

Where Calappa and its relatives were recorded in the Miocene.

Found in the same rock

727 taxa

The Paleobiology Database records 67 sites for Calappa, 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

42 references

Each of the 94 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. 30 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 content2

Picture of Calappa

Credit
E. Morcel (transmis via Philippe Boujon)
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC0 Public Domain
Commercial use
the licence allows it

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 itCalappidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Weber 1795