Tetraclita squamosa

Tetraclita squamosa, the green volcano barnacle, is a species of symmetrical sessile barnacle in the family Tetraclitidae.

Tetraclita squamosa

Santiago Ron · 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
Also called
green volcano barnaclePBDB
Sits inside
TetraclitaPBDB
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 most 118 thousand years on record.

Every occurrence read is dated to somewhere between 129 ka and 11.7 ka, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Pleistocene — about 13 of 13 occurrencesPleistoceneHolocene — about 0 of 13 occurrences147 ka–126 ka Mya — about 0.4 occurrences126 ka–105 ka Mya — about 2 occurrences105 ka–84 ka Mya — about 2 occurrences84 ka–63 ka Mya — about 2 occurrences63 ka–42 ka Mya — about 2 occurrences42 ka–21 ka Mya — about 2 occurrences21 ka–0 Mya — about 1 occurrence629 ka0 Mya

13 occurrences of Tetraclita squamosa 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

13 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

Discovery Point — 29.00°N, 118.23°WDiscovery Point — 29.10°N, 118.25°WDiscovery Point — 29.07°N, 118.24°WPalos Verdes Sand — 33.60°N, 117.88°W

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The named rock units Tetraclita squamosa has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Tetraclita squamosa and its relatives

Pleistocene

Where Tetraclita squamosa and its relatives were recorded in the Pleistocene.

Found in the same rock

582 taxa

The Paleobiology Database records 13 sites for Tetraclita squamosa, 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

4 references

Each of the 13 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 Tetraclita squamosa

Credit
Santiago Ron
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Tetraclita squamosa 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 itTetraclita through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Bruguière 1789