Spirobranchus

Spirobranchus is the second largest genus of tube-building annelid fanworms in the family Serpulidae. Members of Spirobranchus are known as Christmas tree worms.

Spirobranchus

The original uploader was Aquaimages at English Wikipedia . · CC BY-SA 2.5 · 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
SerpulidaePBDB
Diet
suspension feederPBDB, for Serpulidae
Life habit
epifaunalPBDB, for Serpulidae
Motility
stationary, attached, epibiontPBDB, for Serpulidae

Time the record covers

At least 33 million years on record.

The record covers at least 33.9 Mya to 11.7 ka. No occurrence read is dated outside 37.71 Mya to 0 Mya.

Eocene — about 1 of 14 occurrencesEoceneOligocene — about 0 of 14 occurrencesMiocene — about 2 of 14 occurrencesMiocenePliocene — about 0 of 14 occurrencesPleistocene — about 10 of 14 occurrences38–37 Mya — about 0.1 occurrences37–36 Mya — about 0.3 occurrences36–35 Mya — about 0.3 occurrences35–33 Mya — about 0.2 occurrences23–22 Mya — about 0.5 occurrences22–21 Mya — about 0.5 occurrences21–19 Mya — about 0.0 occurrences17–15 Mya — about 0.1 occurrences15–14 Mya — about 0.3 occurrences14–13 Mya — about 0.3 occurrences13–12 Mya — about 0.3 occurrences3.8–2.6 Mya — about 0.1 occurrences2.6–1.3 Mya — about 6 occurrences1.3–0 Mya — about 5 occurrences33.9 Mya11.7 ka38.5 Mya0 Mya

14 occurrences of Spirobranchus 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

14 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

3 formations

Boat Cove — 29.28°S, 177.85°WBoat Cove — 29.22°S, 177.83°WBoat Cove — 29.23°S, 177.88°WDayrell — 29.23°S, 177.82°WBirket Qarun — 29.28°N, 30.04°E

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The named rock units Spirobranchus 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.

Spirobranchus and its relatives

Pleistocene

Where Spirobranchus and its relatives were recorded in the Pleistocene.

Found in the same rock

191 taxa

The Paleobiology Database records 3 sites for Spirobranchus, 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

7 references

Each of the 14 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 Spirobranchus

Credit
The original uploader was Aquaimages at English Wikipedia .
Licence
CC BY-SA 2.5
Commercial use
the licence allows it

3D model

Source
Sketchfab
Credit
squireM
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itSerpulidae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Blainville 1818