Xanthoidea

Xanthoidea is a superfamily of crabs, comprising seven families. Formerly, a number of other families were included in Xanthoidea, but many of these have since been removed to other superfamilies. These include Carpilioidea, Eriphioidea, Hexapodoidea, Pilumnoidea and Trapezioidea. Even in this reduced state, Xanthoidea remains one of the most species-rich superfamilies of crabs.

Xanthoidea

George Chernilevsky · 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
HeterotremataPBDB
Diet
carnivorePBDB, for Decapoda
Life habit
infaunalPBDB
Motility
actively mobilePBDB, for Malacostraca
Vision
well-developedPBDB, for Malacostraca

Time the record covers

At least 125 million years on record.

The record covers at least 125.77 Mya to 11.7 ka. No occurrence read is dated outside 132.6 Mya to 0 Mya.

Early Cretaceous — about 4 of 511 occurrencesEarly CretaceousLate Cretaceous — about 17 of 511 occurrencesLate CretaceousPaleocene — about 18 of 511 occurrencesEocene — about 162 of 511 occurrencesEoceneOligocene — about 56 of 511 occurrencesMiocene — about 129 of 511 occurrencesMiocenePliocene — about 46 of 511 occurrencesPleistocene — about 53 of 511 occurrences135–131 Mya — about 0.5 occurrences131–126 Mya — about 1 occurrence126–122 Mya — about 0.1 occurrences122–117 Mya — about 1 occurrence108–104 Mya — about 0.4 occurrences104–99 Mya — about 1.0 occurrences99–95 Mya — about 1 occurrence95–90 Mya — about 0.4 occurrences90–86 Mya — about 0.1 occurrences86–81 Mya — about 0.3 occurrences81–77 Mya — about 0.5 occurrences77–72 Mya — about 0.7 occurrences72–68 Mya — about 10 occurrences68–63 Mya — about 9 occurrences63–59 Mya — about 6 occurrences59–54 Mya — about 25 occurrences54–50 Mya — about 44 occurrences50–45 Mya — about 32 occurrences45–41 Mya — about 25 occurrences41–36 Mya — about 24 occurrences36–32 Mya — about 31 occurrences32–27 Mya — about 25 occurrences27–23 Mya — about 21 occurrences23–18 Mya — about 21 occurrences18–14 Mya — about 27 occurrences14–9.0 Mya — about 49 occurrences9.0–4.5 Mya — about 39 occurrences4.5–0 Mya — about 115 occurrences125.77 Mya11.7 ka135 Mya0 Mya

511 occurrences of Xanthoidea on record, most of them in the Eocene. 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

511 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

98 formations

Yorktown — 37.23°N, 76.96°WYorktown — 36.68°N, 77.10°WYorktown — 36.80°N, 76.59°WYorktown — 36.75°N, 76.58°WYorktown — 36.38°N, 77.06°WYorktown — 36.32°N, 76.73°WYorktown — 36.20°N, 76.75°WYorktown — 36.12°N, 76.74°WYorktown — 36.05°N, 76.72°WYorktown — 35.94°N, 77.56°WYorktown — 34.99°N, 76.85°WSandakan — 5.86°N, 118.04°ESandakan — 5.88°N, 118.06°ENdalithoni Limestone — 17.23°S, 178.95°ENdalithoni — 17.24°S, 178.94°WMegami — 34.70°N, 128.18°EMontpelier — 18.47°N, 77.58°WPort Morant — 17.87°N, 76.32°WLookingglass — 42.56°N, 124.02°WLookingglass — 43.30°N, 123.10°WPirabas — 0.48°S, 48.17°WPirabas — 1.05°S, 47.16°WPirabas — 0.84°S, 47.09°WMoin — 9.99°N, 83.03°WLeitha Limestone — 47.83°N, 16.48°EPalos Verdes Sand — 33.99°N, 118.45°WPalos Verdes Sand — 33.60°N, 117.88°WBowden — 17.89°N, 76.31°WPinczow — 50.47°N, 20.80°EWaccamaw — 34.56°N, 78.49°WWaccamaw — 34.35°N, 78.18°WCercado — 19.46°N, 71.10°WCercado — 19.46°N, 71.19°WEscudo de Veraguas — 9.10°N, 81.56°WEscudo de Veraguas — 9.09°N, 81.54°WTalbot — 38.07°N, 76.36°WUpper Coralline Limestone — 35.93°N, 14.33°EUpper Coralline Limestone — 35.92°N, 14.38°EOcozocoautla — 16.14°N, 92.78°WOcozocoautla — 16.00°N, 92.00°WSan Pedro Sand — 33.74°N, 118.28°WDiscovery Point — 29.00°N, 118.23°WDiscovery Point — 29.10°N, 118.25°WCastelgomberto — 45.50°N, 11.40°EMandog — 7.07°N, 125.57°E

Loading coastlines…

The named rock units Xanthoidea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 74 further formations hold fewer occurrences each and are not listed. 272 occurrences have no formation on record, which is common for older literature.

Xanthoidea and its relatives

Eocene

Where Xanthoidea and its relatives were recorded in the Eocene.

Found in the same rock

3,411 taxa

The Paleobiology Database records 192 sites for Xanthoidea, 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

133 references

Each of the 511 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. 121 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 Xanthoidea

Credit
George Chernilevsky
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Xanthoidea was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itHeterotremata through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (MacLeay 1838)