Polymesoda (Geloina)

Polymesoda (Geloina)

Juan Fernando Pesántez-Muñoz · CC BY-NC 4.0 · via GBIF. 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
PolymesodaPBDB
Diet
suspension feederPBDB, for Polymesoda
Life habit
infaunalPBDB, for Polymesoda
Motility
facultatively mobilePBDB, for Polymesoda
Vision
blindPBDB, for Bivalvia
Environment
brackish,freshwaterPBDB, for Corbiculidae

Time the record covers

At least 48 million years on record.

The record covers at least 48.07 Mya to 11.7 ka. No occurrence read is dated outside 56 Mya to 0 Mya.

Paleocene — about 0 of 16 occurrencesEocene — about 6 of 16 occurrencesEoceneOligocene — about 1 of 16 occurrencesOligoceneMiocene — about 5 of 16 occurrencesMiocenePliocene — about 3 of 16 occurrencesPleistocene — about 0 of 16 occurrences57–55 Mya — about 0.1 occurrences55–53 Mya — about 0.2 occurrences53–51 Mya — about 0.2 occurrences51–50 Mya — about 0.2 occurrences50–48 Mya — about 0.3 occurrences48–46 Mya — about 0.5 occurrences46–44 Mya — about 0.5 occurrences44–42 Mya — about 0.5 occurrences42–40 Mya — about 0.9 occurrences40–38 Mya — about 1 occurrence38–36 Mya — about 0.6 occurrences36–34 Mya — about 0.5 occurrences34–32 Mya — about 0.3 occurrences32–30 Mya — about 0.3 occurrences30–29 Mya — about 0.3 occurrences29–27 Mya — about 0.2 occurrences17–15 Mya — about 1 occurrence15–13 Mya — about 3 occurrences13–11 Mya — about 0.8 occurrences5.7–3.8 Mya — about 1 occurrence3.8–1.9 Mya — about 2 occurrences1.9–0 Mya — about 1 occurrence48.07 Mya11.7 ka57 Mya0 Mya

16 occurrences of Polymesoda (Geloina) on record, most of them in the Eocene. 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

16 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

9 formations

Wakkanabi — 43.50°N, 142.00°EYoshino — 35.10°N, 134.19°EShitakara — 42.98°N, 144.38°EAkabira — 43.50°N, 142.00°EHiragishi — 43.50°N, 142.00°EPucangan — 7.49°S, 110.00°EChaya — 21.97°N, 70.50°ESilantek — 0.88°N, 111.98°EHorokabetsu — 43.34°N, 141.97°E

Loading coastlines…

The named rock units Polymesoda (Geloina) 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.

Polymesoda (Geloina) and its relatives

Eocene

Where Polymesoda (Geloina) and its relatives were recorded in the Eocene.

Found in the same rock

96 taxa

The Paleobiology Database records 4 sites for Polymesoda (Geloina), 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

9 references

Each of the 16 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Polymesoda (Geloina)

Source
GBIF
Credit
Juan Fernando Pesántez-Muñoz
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow it

No 3D scan of Polymesoda (Geloina) was found in MorphoSource and Sketchfab.

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itPolymesoda through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Gray 1840)