Glomerula

Glomerula is a genus of polychaete worm in the family Sabellidae. It differs from all other Sabellidae in having a calcareous tube and spinose setae. Only one living species, G. piloseta, is known from Lizard Island, Great Barrier Reef, Australia. The oldest fossils of Glomerula are known from the Early Jurassic and their tube microstructure has remained unchanged since then.

Glomerula

Olev Vinn · 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
SabellinaePBDB

Time the record covers

At least 205 million years on record.

The record covers at least 264.28 Mya to 59.24 Mya. No occurrence read is dated outside 266.9 Mya to 56 Mya.

Permian — about 3 of 53 occurrencesPermianEarly Triassic — about 0 of 53 occurrencesMiddle Triassic — about 0 of 53 occurrencesLate Triassic — about 0 of 53 occurrencesEarly Jurassic — about 1 of 53 occurrencesEarly JurassicMiddle Jurassic — about 4 of 53 occurrencesLate Jurassic — about 12 of 53 occurrencesLate JurassicEarly Cretaceous — about 19 of 53 occurrencesEarly CretaceousLate Cretaceous — about 13 of 53 occurrencesLate CretaceousPaleocene — about 1 of 53 occurrencesEocene — about 0 of 53 occurrences271–264 Mya — about 3 occurrences183–176 Mya — about 0.5 occurrences176–169 Mya — about 0.5 occurrences169–161 Mya — about 4 occurrences161–154 Mya — about 6 occurrences154–147 Mya — about 4 occurrences147–140 Mya — about 2 occurrences140–132 Mya — about 2 occurrences132–125 Mya — about 8 occurrences125–118 Mya — about 5 occurrences118–110 Mya — about 2 occurrences110–103 Mya — about 1 occurrence103–96 Mya — about 1 occurrence96–88 Mya — about 9 occurrences88–81 Mya — about 2 occurrences81–74 Mya — about 0.6 occurrences74–66 Mya — about 0.1 occurrences66–59 Mya — about 0.0 occurrences59–52 Mya — about 1.0 occurrences264.28 Mya59.24 Mya271 Mya52 Mya

53 occurrences of Glomerula on record, most of them in the Early Cretaceous. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

53 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

24 formations

Agrio — 38.37°S, 70.02°WAgrio — 37.67°S, 70.03°WAgrio — 39.35°S, 70.13°WAgrio — 37.62°S, 70.04°WAgrio — 37.65°S, 70.22°WAgrio — 39.44°S, 70.17°WGrès verts helvétiques — 45.89°N, 6.48°EGrès verts helvétiques — 45.97°N, 6.44°ETeplice — 50.45°N, 14.05°ENeuburger Weiß — 48.73°N, 11.18°EAtherfield Clay — 50.61°N, 1.36°WVincentown — 39.97°N, 74.68°WPatcham — 23.52°N, 69.00°ESüntel — 51.90°N, 10.50°ESteeple Ashton Coral Bed — 51.33°N, 1.83°WCaillasses de la Basse Ecarde — 49.00°N, 0.00°EBraunjura alpha & Braunjura beta — 48.90°N, 7.67°ECampanien 1-2 — 45.75°N, 0.47°WBranderfleck — 47.67°N, 12.17°ECalcaires Lites — 45.78°N, 5.52°EPortland Limestone — 50.52°N, 2.43°WCouches de Birmensdorf — 46.25°N, 5.67°EMatmor — 30.93°N, 34.97°EAmbarimaninga — 16.50°S, 46.00°EKorallenoolith — 52.25°N, 9.60°ELewes Nodular Chalk — 51.25°N, 2.16°WCotinguiba — 10.86°S, 37.15°WPuez — 46.59°N, 11.79°EMassenkalk — 48.89°N, 11.94°EBandurrias — 27.32°S, 70.23°W

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The named rock units Glomerula has been recovered from, largest first. Drawn where the rock is now, not where it formed. 19 occurrences have no formation on record, which is common for older literature.

Glomerula and its relatives

Early Cretaceous

Where Glomerula and its relatives were recorded in the Early Cretaceous.

Found in the same rock

1,410 taxa

The Paleobiology Database records 41 sites for Glomerula, 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

37 references

Each of the 53 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. 25 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 content1

Picture of Glomerula

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

No 3D scan of Glomerula 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 itSabellinae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Brünnich Nielsen 1931