Chelonibia

Chelonibia is a genus of acorn barnacles in the family Chelonibiidae of the subphylum Crustacea. Its members are epizootic and live attached to manatees, turtles, marine molluscs, crabs and horseshoe crabs in all tropical and subtropical oceans. In a few instances, they have been found on sea snakes, alligators and inanimate substrates, but they are not found in the typical habitats of barnacles – on rocks, docks or boats.

Chelonibia

Cirriphilia · 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
ChelonibiinaePBDB
Diet
suspension feederPBDB, for Cirripedia
Life habit
epifaunalPBDB, for Cirripedia
Motility
stationary, attached, epibiontPBDB, for Cirripedia
Vision
limitedPBDB, for Cirripedia

Time the record covers

At least 27 million years on record.

The record covers at least 27.3 Mya to 11.7 ka. No occurrence read is dated outside 33.9 Mya to 0 Mya.

Eocene — about 0 of 10 occurrencesOligocene — about 3 of 10 occurrencesOligoceneMiocene — about 0 of 10 occurrencesPliocene — about 3 of 10 occurrencesPleistocene — about 3 of 10 occurrences35–33 Mya — about 0.2 occurrences33–32 Mya — about 0.5 occurrences32–31 Mya — about 0.5 occurrences31–30 Mya — about 0.5 occurrences30–29 Mya — about 0.5 occurrences29–28 Mya — about 0.5 occurrences28–27 Mya — about 0.2 occurrences5.8–4.6 Mya — about 0.8 occurrences4.6–3.5 Mya — about 1 occurrence3.5–2.3 Mya — about 1 occurrence2.3–1.2 Mya — about 1 occurrence1.2–0 Mya — about 2 occurrences27.3 Mya11.7 ka34.6 Mya0 Mya

10 occurrences of Chelonibia on record, most of them in the Oligocene. 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

10 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

7 formations

Tamiami — 26.13°N, 81.48°WCaloosahatchee — 26.52°N, 82.03°WPamlico — 30.63°N, 81.60°WByram — 32.01°N, 89.38°WMint Spring — 32.17°N, 90.18°WYorktown — 35.15°N, 77.14°WMint Springs — 31.23°N, 89.05°W

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The named rock units Chelonibia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Chelonibia and its relatives

Oligocene

Where Chelonibia and its relatives were recorded in the Oligocene.

Found in the same rock

230 taxa

The Paleobiology Database records 8 sites for Chelonibia, 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

3 references

Each of the 10 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 Chelonibia

Credit
Cirriphilia
Licence
CC BY-SA 3.0
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 itChelonibiinae through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Leach 1817