Concavus

Concavus is an extinct genus of barnacles.

Concavus

Hectonichus · 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
ConcavinaePBDB
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 27 million years on record.

The record covers at least 27.3 Mya to 129 ka. No occurrence read is dated outside 33.9 Mya to 11.7 ka.

Eocene — about 0 of 67 occurrencesOligocene — about 3 of 67 occurrencesOligoceneMiocene — about 37 of 67 occurrencesMiocenePliocene — about 17 of 67 occurrencesPleistocene — about 10 of 67 occurrences35–33 Mya — about 0.1 occurrences33–32 Mya — about 0.3 occurrences32–31 Mya — about 0.3 occurrences31–30 Mya — about 0.3 occurrences30–29 Mya — about 0.3 occurrences29–28 Mya — about 0.3 occurrences28–27 Mya — about 0.3 occurrences27–25 Mya — about 0.4 occurrences25–24 Mya — about 0.4 occurrences24–23 Mya — about 0.4 occurrences23–22 Mya — about 2 occurrences22–21 Mya — about 2 occurrences21–20 Mya — about 1 occurrence20–18 Mya — about 1 occurrence18–17 Mya — about 1 occurrence17–16 Mya — about 1 occurrence16–15 Mya — about 2 occurrences15–14 Mya — about 2 occurrences14–13 Mya — about 10 occurrences13–12 Mya — about 9 occurrences12–10 Mya — about 1 occurrence10–9.2 Mya — about 1 occurrence9.2–8.1 Mya — about 1 occurrence8.1–6.9 Mya — about 1 occurrence6.9–5.8 Mya — about 1 occurrence5.8–4.6 Mya — about 6 occurrences4.6–3.5 Mya — about 8 occurrences3.5–2.3 Mya — about 4 occurrences2.3–1.2 Mya — about 0.4 occurrences1.2–0 Mya — about 9 occurrences27.3 Mya129 ka34.6 Mya0 Mya

67 occurrences of Concavus 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

67 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

21 formations

Choptank — 38.53°N, 76.52°WChoptank — 38.38°N, 76.50°WChoptank — 38.39°N, 76.57°WChoptank — 38.38°N, 76.38°WPalos Verdes Sand — 33.80°N, 118.16°WPalos Verdes Sand — 33.71°N, 118.27°WEtchegoin — 36.02°N, 120.27°WEtchegoin — 36.06°N, 120.48°WEtchegoin — 36.95°N, 120.16°WTamiami — 26.98°N, 82.21°WTamiami — 26.89°N, 82.01°WTamiami — 26.13°N, 81.48°WCalvert — 38.65°N, 76.53°WLas Cahobas — 18.51°N, 72.27°WSalada — 24.58°N, 112.00°WSalada — 27.70°N, 114.90°WYsidro — 27.17°N, 113.28°WYsidro — 26.15°N, 112.25°WSanta Barbara — 34.40°N, 119.69°WJacalitos — 36.09°N, 120.50°WJacalitos — 36.03°N, 120.39°WAshley — 32.81°N, 80.11°WSt Marys — 38.36°N, 76.39°WMurdock Station — 25.90°N, 81.30°WGornji Grad — 46.28°N, 14.25°ESt. Mary's — 38.40°N, 76.42°WGatun — 9.28°N, 79.89°WBuckingham — 25.70°N, 80.40°WValldunga — 44.91°N, 8.12°EBelgrade — 35.01°N, 77.22°WParachucla — 30.33°N, 82.76°WSan Pedro Sand — 33.74°N, 118.28°W

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The named rock units Concavus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 occurrences have no formation on record, which is common for older literature.

Concavus and its relatives

Miocene

Where Concavus and its relatives were recorded in the Miocene.

Found in the same rock

912 taxa

The Paleobiology Database records 57 sites for Concavus, 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

26 references

Each of the 67 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. 14 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 content2

Picture of Concavus

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

3D model

Source
Sketchfab
Licence
CC0 Public Domain
Commercial use
the licence allows it

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 itConcavinae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Newman 1982