Leucosiidae

Leucosiidae is a family of crabs containing three subfamilies and a number of genera incertae sedis:

Leucosiidae

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
LeucosioideaPBDB
Diet
carnivorePBDB, for Decapoda
Life habit
semi-infaunalPBDB, for Leucosioidea
Motility
actively mobilePBDB, for Malacostraca
Vision
well-developedPBDB, for Malacostraca

Time the record covers

At least 48 million years on record.

The record covers at least 48.07 Mya to 11.7 ka. No occurrence read is dated outside 56 Mya to 0 Mya.

Paleocene — about 0 of 210 occurrencesEocene — about 2 of 210 occurrencesEoceneOligocene — about 2 of 210 occurrencesOligoceneMiocene — about 121 of 210 occurrencesMiocenePliocene — about 34 of 210 occurrencesPleistocene — about 46 of 210 occurrences57–55 Mya — about 0.1 occurrences55–53 Mya — about 0.2 occurrences53–51 Mya — about 0.2 occurrences51–50 Mya — about 0.2 occurrences50–48 Mya — about 0.2 occurrences38–36 Mya — about 0.4 occurrences36–34 Mya — about 0.5 occurrences34–32 Mya — about 0.5 occurrences32–30 Mya — about 0.5 occurrences30–29 Mya — about 0.5 occurrences29–27 Mya — about 0.4 occurrences27–25 Mya — about 0.3 occurrences25–23 Mya — about 0.8 occurrences23–21 Mya — about 5 occurrences21–19 Mya — about 6 occurrences19–17 Mya — about 6 occurrences17–15 Mya — about 5 occurrences15–13 Mya — about 7 occurrences13–11 Mya — about 11 occurrences11–9.5 Mya — about 28 occurrences9.5–7.6 Mya — about 28 occurrences7.6–5.7 Mya — about 21 occurrences5.7–3.8 Mya — about 16 occurrences3.8–1.9 Mya — about 34 occurrences1.9–0 Mya — about 39 occurrences48.07 Mya11.7 ka57 Mya0 Mya

210 occurrences of Leucosiidae 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

210 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

49 formations

Miri — 4.82°N, 114.75°EMiri — 4.86°N, 114.80°ESandakan — 5.86°N, 118.04°ESandakan — 5.88°N, 118.06°ECercado — 19.46°N, 71.10°WCercado — 19.46°N, 71.19°WDainichi — 34.80°N, 138.96°EDainichi — 34.81°N, 137.92°EDainichi — 34.80°N, 138.00°EMiri — 4.15°N, 113.85°EMiri — 4.10°N, 113.81°ECayo Agua — 9.14°N, 82.01°WCayo Agua — 9.18°N, 82.05°WCayo Agua — 9.26°N, 82.05°WCayo Agua — 9.17°N, 82.03°WRio Banano — 9.91°N, 83.04°WRio Banano — 9.91°N, 83.09°WUpper Bhuban — 23.73°N, 92.25°EUpper Bhuban — 23.00°N, 93.00°EYorktown — 36.74°N, 76.60°WGurabo — 19.48°N, 71.18°WGurabo — 19.53°N, 71.29°WMishan — 27.15°N, 56.00°ESetap — 4.05°N, 113.81°ELillo — 51.29°N, 4.25°EMapulo — 13.75°N, 121.19°ECastell'Arquato — 44.86°N, 9.88°ESan Pedro — 33.80°N, 118.17°WSan Pedro — 32.67°N, 117.14°WTobabe Sandstone — 9.13°N, 81.81°WJaffna — 8.28°N, 79.82°EPirabas — 0.48°S, 48.17°WToyohashi — 34.62°N, 137.24°EKawabara — 32.12°N, 131.37°ESoga — 34.72°N, 138.03°EMazantic Shale — 16.00°N, 92.00°WSuva — 18.11°S, 178.41°E

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The named rock units Leucosiidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 25 further formations hold fewer occurrences each and are not listed. 72 occurrences have no formation on record, which is common for older literature.

Leucosiidae and its relatives

Miocene

Where Leucosiidae and its relatives were recorded in the Miocene.

Found in the same rock

1,493 taxa

The Paleobiology Database records 123 sites for Leucosiidae, 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

52 references

Each of the 210 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. 40 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 Leucosiidae

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

No 3D scan of Leucosiidae 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 itLeucosioidea through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Samouelle 1819