Cancroidea

Cancroidea is a superfamily of crabs, comprising the families Atelecyclidae and Cancridae. Four other families have been separated into new superfamilies: Cheiragonidae into Cheiragonoidea, Corystidae into Corystoidea, and both Pirimelidae and Thiidae into Portunoidea. Montezumellidae has been moved from Cancroidea to its own superfamily Montezumelloidea.

Cancroidea

Hans Hillewaert · CC BY-SA 4.0 · 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
HeterotremataPBDB
Diet
carnivorePBDB, for Decapoda
Life habit
semi-infaunalPBDB
Motility
actively mobilePBDB, for Malacostraca
Vision
well-developedPBDB, for Malacostraca

Time the record covers

At least 93 million years on record.

The record covers at least 93.9 Mya to 11.7 ka. No occurrence read is dated outside 100.5 Mya to 0 Mya.

Early Cretaceous — about 0 of 358 occurrencesLate Cretaceous — about 2 of 358 occurrencesLate CretaceousPaleocene — about 0 of 358 occurrencesEocene — about 31 of 358 occurrencesEoceneOligocene — about 3 of 358 occurrencesOligoceneMiocene — about 83 of 358 occurrencesMiocenePliocene — about 51 of 358 occurrencesPleistocene — about 182 of 358 occurrences103–99 Mya — about 0.4 occurrences99–96 Mya — about 1 occurrence96–92 Mya — about 0.5 occurrences58–55 Mya — about 0.9 occurrences55–51 Mya — about 2 occurrences51–48 Mya — about 3 occurrences48–44 Mya — about 7 occurrences44–41 Mya — about 7 occurrences41–38 Mya — about 7 occurrences38–34 Mya — about 4 occurrences34–31 Mya — about 0.6 occurrences31–27 Mya — about 0.3 occurrences27–24 Mya — about 2 occurrences24–21 Mya — about 6 occurrences21–17 Mya — about 17 occurrences17–14 Mya — about 19 occurrences14–10 Mya — about 22 occurrences10–6.8 Mya — about 14 occurrences6.8–3.4 Mya — about 28 occurrences3.4–0 Mya — about 216 occurrences93.9 Mya11.7 ka103 Mya0 Mya

358 occurrences of Cancroidea on record, most of them in the Pleistocene. 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

358 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

84 formations

Palos Verdes Sand — 33.80°N, 118.16°WPalos Verdes Sand — 33.99°N, 118.45°WPalos Verdes Sand — 33.60°N, 117.88°WPalos Verdes Sand — 33.75°N, 118.29°WPalos Verdes Sand — 33.78°N, 118.30°WPalos Verdes Sand — 33.97°N, 118.42°WPalos Verdes Sand — 32.72°N, 117.26°WPalos Verdes Sand — 34.04°N, 118.57°WPalos Verdes Sand — 32.70°N, 117.19°WSan Pedro — 33.93°N, 117.95°WSan Pedro — 33.80°N, 118.17°WSan Pedro — 32.67°N, 117.14°WSan Pedro — 33.74°N, 118.29°WSan Pedro — 33.75°N, 118.29°WEtchegoin — 36.08°N, 120.36°WEtchegoin — 36.18°N, 120.29°WEtchegoin — 36.02°N, 120.04°WEtchegoin — 36.03°N, 120.05°WEtchegoin — 36.10°N, 120.52°WEtchegoin — 36.42°N, 120.96°WEtchegoin — 36.24°N, 120.36°WTimms Point Silt — 33.73°N, 118.28°WSan Pedro Sand — 33.74°N, 118.28°WSan Pedro Sand — 34.30°N, 118.99°WSan Diego — 32.80°N, 117.26°WSan Diego — 32.54°N, 117.11°WSan Diego — 32.81°N, 117.23°WSan Joaquin — 36.03°N, 120.04°WElk River — 42.82°N, 124.54°WLomita Marl — 33.78°N, 118.34°WFernando — 34.05°N, 118.25°WMoonstone Beach — 41.03°N, 124.11°WSanta Barbara — 34.41°N, 119.72°WSanta Barbara — 34.44°N, 119.78°WSanta Barbara — 34.45°N, 119.78°WTalbot — 38.07°N, 76.36°WTalbot — 38.05°N, 76.52°WAsagaya — 36.51°N, 136.70°EMillerton — 38.22°N, 122.95°WMillerton — 38.22°N, 122.95°WEstancia 25 de Mayo — 50.51°S, 72.25°WPuerto Madryn — 42.58°S, 64.27°WGreta — 43.05°S, 173.07°EGreta — 43.05°S, 173.07°EBear Lake — 55.99°N, 160.01°WChoptank — 38.47°N, 76.48°WChoptank — 38.39°N, 76.57°WPirabas — 0.48°S, 48.17°WPirabas — 2.58°S, 43.38°WPico — 33.84°N, 117.85°WPico — 34.36°N, 118.56°WPico — 34.38°N, 119.07°WLillo — 51.26°N, 4.21°ELillo — 51.29°N, 4.25°EPurisima — 37.32°N, 122.26°WPurisima — 36.96°N, 121.96°W

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The named rock units Cancroidea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 60 further formations hold fewer occurrences each and are not listed. 81 occurrences have no formation on record, which is common for older literature.

Cancroidea and its relatives

Pleistocene

Where Cancroidea and its relatives were recorded in the Pleistocene.

Found in the same rock

2,517 taxa

The Paleobiology Database records 195 sites for Cancroidea, 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

76 references

Each of the 358 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. 64 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 Cancroidea

Credit
Hans Hillewaert
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Cancroidea 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 PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Latreille 1802