Chirona

Chirona is a genus of acorn barnacles in the family Balanidae. There are about six described species in Chirona.

Chirona

Ian Manning Depicted place: Kings, CA-NS, CA ( 45°07′59″N 64°52′22″W / 45.1330813478°N 64.872880116°W / 45.1330813478… · 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
ArchaeobalaninaePBDB
Diet
suspension feederPBDB, for Balanidae
Life habit
epifaunal, gregariousPBDB, for Balanidae
Motility
stationary, attached, epibiontPBDB, for Balanidae
Vision
limitedPBDB, for Cirripedia

Time the record covers

At least 13 million years on record.

The record covers at least 13.82 Mya to 11.7 ka. No occurrence read is dated outside 15.98 Mya to 0 Mya.

Miocene — about 3 of 9 occurrencesMiocenePliocene — about 0 of 9 occurrencesPleistocene — about 5 of 9 occurrencesPleistocene16–16 Mya — about 0.0 occurrences16–15 Mya — about 0.4 occurrences15–15 Mya — about 0.4 occurrences15–14 Mya — about 0.4 occurrences14–14 Mya — about 0.3 occurrences14–13 Mya — about 0.1 occurrences13–13 Mya — about 0.1 occurrences13–12 Mya — about 0.1 occurrences12–12 Mya — about 0.1 occurrences12–11 Mya — about 0.1 occurrences11–10 Mya — about 0.1 occurrences10–9.9 Mya — about 0.1 occurrences9.9–9.3 Mya — about 0.1 occurrences9.3–8.8 Mya — about 0.1 occurrences8.8–8.2 Mya — about 0.1 occurrences8.2–7.7 Mya — about 0.1 occurrences7.7–7.1 Mya — about 0.1 occurrences7.1–6.6 Mya — about 0.1 occurrences6.6–6.0 Mya — about 0.1 occurrences6.0–5.5 Mya — about 0.1 occurrences5.5–4.9 Mya — about 0.0 occurrences2.7–2.2 Mya — about 0.7 occurrences2.2–1.6 Mya — about 1 occurrence1.6–1.1 Mya — about 1 occurrence1.1–549 ka Mya — about 1 occurrence549 ka–0 Mya — about 2 occurrences13.82 Mya11.7 ka16.5 Mya0 Mya

9 occurrences of Chirona 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

9 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

1 formation

Bear Lake — 55.50°N, 160.84°WBear Lake — 56.06°N, 160.91°WBear Lake — 56.03°N, 160.05°W

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The named rock units Chirona has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Chirona and its relatives

Pleistocene

Where Chirona and its relatives were recorded in the Pleistocene.

Found in the same rock

55 taxa

The Paleobiology Database records 9 sites for Chirona, 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

2 references

Each of the 9 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Chirona

Credit
Ian Manning Depicted place: Kings, CA-NS, CA ( 45°07′59″N 64°52′22″W / 45.1330813478°N 64.872880116°W / 45.1330813478…
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Chirona 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 itArchaeobalaninae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gray 1835