Cronius

Cronius is a genus of crabs containing the two species Cronius ruber and Cronius tumidulus.

Cronius

[Photograph: Nathaniel Evans] Evans N. 2018. Molecular phylogenetics of swimming crabs (Portunoidea Rafinesque, 1815)… · CC BY 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
ThalamitinaePBDB
Diet
carnivorePBDB, for Decapoda
Life habit
semi-infaunalPBDB, for Portunoidea
Motility
actively mobilePBDB, for Malacostraca
Vision
well-developedPBDB, for Malacostraca

Time the record covers

At least 2.5 million years on record.

The record covers at least 2.58 Mya to 11.7 ka. No occurrence read is dated outside 5.333 Mya to 0 Mya.

Miocene — about 0 of 4 occurrencesPliocene — about 2 of 4 occurrencesPliocenePleistocene — about 0 of 4 occurrencesHolocene — about 2 of 4 occurrences5.4–5.3 Mya — about 0.1 occurrences5.3–5.1 Mya — about 0.1 occurrences5.1–4.9 Mya — about 0.1 occurrences4.9–4.7 Mya — about 0.1 occurrences4.7–4.5 Mya — about 0.1 occurrences4.5–4.3 Mya — about 0.1 occurrences4.3–4.1 Mya — about 0.1 occurrences4.1–3.9 Mya — about 0.1 occurrences3.9–3.7 Mya — about 0.1 occurrences3.7–3.5 Mya — about 0.1 occurrences3.5–3.3 Mya — about 0.1 occurrences3.3–3.1 Mya — about 0.1 occurrences3.1–2.9 Mya — about 0.1 occurrences2.9–2.7 Mya — about 0.1 occurrences2.7–2.5 Mya — about 0.1 occurrences194 ka–0 Mya — about 2 occurrences2.58 Mya11.7 ka5.8 Mya0 Mya

4 occurrences of Cronius on record. 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

4 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

2 formations

Ndalithoni Limestone — 17.23°S, 178.95°ENdalithoni — 17.24°S, 178.94°W

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The named rock units Cronius has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Found in the same rock

The Paleobiology Database records no fossil sites for Cronius, so there is nothing to compare it with.

Entered from

3 references

Each of the 4 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 content1

Picture of Cronius

Credit
[Photograph: Nathaniel Evans] Evans N. 2018. Molecular phylogenetics of swimming crabs (Portunoidea Rafinesque, 1815)…
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itThalamitinae through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Stimpson 1862