Actaea

Actaea is a genus of crabs in the family Xanthidae, containing the following species:

Actaea

SSR2000 · 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
ActaeinaePBDB
Diet
carnivorePBDB, for Decapoda
Life habit
infaunalPBDB, for Xanthoidea
Motility
actively mobilePBDB, for Malacostraca
Vision
well-developedPBDB, for Malacostraca

Time the record covers

At least 100 million years on record.

The record covers at least 100.5 Mya to 11.7 ka. No occurrence read is dated outside 106.3 Mya to 0 Mya.

Early Cretaceous — about 1 of 12 occurrencesLate Cretaceous — about 0 of 12 occurrencesPaleocene — about 0 of 12 occurrencesEocene — about 0 of 12 occurrencesOligocene — about 0 of 12 occurrencesMiocene — about 4 of 12 occurrencesMiocenePliocene — about 0 of 12 occurrencesPleistocene — about 3 of 12 occurrences108–105 Mya — about 0.3 occurrences105–101 Mya — about 0.6 occurrences101–98 Mya — about 0.1 occurrences14–11 Mya — about 1 occurrence11–7.2 Mya — about 0.0 occurrences7.2–3.6 Mya — about 3 occurrences3.6–0 Mya — about 7 occurrences100.5 Mya11.7 ka108 Mya0 Mya

12 occurrences of Actaea 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

12 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

3 formations

Baucina — 37.82°N, 12.80°EPawpaw — 32.67°N, 97.31°WCoral Rock — 13.09°N, 59.60°W

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The named rock units Actaea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.

Actaea and its relatives

Miocene

Where Actaea and its relatives were recorded in the Miocene.

Found in the same rock

94 taxa

The Paleobiology Database records 6 sites for Actaea, 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

8 references

Each of the 12 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. 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 Actaea

Credit
SSR2000
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

MorphoSource 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 itActaeinae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. De Haan 1833