Tetraclita

Tetraclita is a genus of sessile barnacles in the family Tetraclitidae. There are more than 20 described species in Tetraclita.

Tetraclita

harum.koh from Kobe city, Japan · CC BY-SA 2.0 · 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
TetraclitidaePBDB
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 22 million years on record.

The record covers at least 23.04 Mya to 129 ka. No occurrence read is dated outside 27.3 Mya to 0 Mya.

Oligocene — about 2 of 31 occurrencesOligoceneMiocene — about 1 of 31 occurrencesMiocenePliocene — about 0 of 31 occurrencesPleistocene — about 28 of 31 occurrencesPleistocene28–27 Mya — about 0.2 occurrences27–26 Mya — about 0.4 occurrences26–25 Mya — about 0.4 occurrences25–24 Mya — about 0.4 occurrences24–23 Mya — about 0.4 occurrences23–22 Mya — about 0.1 occurrences12–11 Mya — about 0.1 occurrences11–10 Mya — about 0.2 occurrences10–9.3 Mya — about 0.2 occurrences9.3–8.4 Mya — about 0.2 occurrences8.4–7.4 Mya — about 0.2 occurrences7.4–6.5 Mya — about 0.0 occurrences2.8–1.9 Mya — about 3 occurrences1.9–928 ka Mya — about 4 occurrences928 ka–0 Mya — about 22 occurrences23.04 Mya129 ka27.8 Mya0 Mya

31 occurrences of Tetraclita 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

31 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

4 formations

Unnamed — 33.24°N, 119.51°WDiscovery Point — 29.00°N, 118.23°WDiscovery Point — 29.10°N, 118.25°WDiscovery Point — 29.07°N, 118.24°WVaqueros — 34.04°N, 120.04°WPalos Verdes Sand — 33.99°N, 118.45°WPalos Verdes Sand — 33.60°N, 117.88°W

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The named rock units Tetraclita has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 occurrences have no formation on record, which is common for older literature.

Tetraclita and its relatives

Pleistocene

Where Tetraclita and its relatives were recorded in the Pleistocene.

Found in the same rock

971 taxa

The Paleobiology Database records 29 sites for Tetraclita, 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

12 references

Each of the 31 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 Tetraclita

Credit
harum.koh from Kobe city, Japan
Licence
CC BY-SA 2.0
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

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 itTetraclitidae through timeFormations of the PleistoceneThe world it lived on

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