Bayania

Bayania

via iDigBio · CC BY · via iDigBio. 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
ThiaridaePBDB
Diet
grazerPBDB, for Cerithioidea
Life habit
epifaunalPBDB, for Cerithioidea
Motility
actively mobilePBDB, for Cerithioidea
Vision
limitedPBDB, for Gastropoda
Environment
freshwaterPBDB, for Thiaridae

Time the record covers

At least 34 million years on record.

The record covers at least 61.66 Mya to 27.3 Mya. No occurrence read is dated outside 66 Mya to 23.04 Mya.

Late Cretaceous — about 0 of 80 occurrencesPaleocene — about 8 of 80 occurrencesPaleoceneEocene — about 43 of 80 occurrencesEoceneOligocene — about 29 of 80 occurrencesOligoceneMiocene — about 0 of 80 occurrences67–65 Mya — about 0.1 occurrences65–64 Mya — about 0.3 occurrences64–62 Mya — about 0.3 occurrences62–61 Mya — about 2 occurrences61–59 Mya — about 4 occurrences59–58 Mya — about 0.5 occurrences56–55 Mya — about 0.1 occurrences55–53 Mya — about 0.2 occurrences53–52 Mya — about 0.2 occurrences52–50 Mya — about 0.2 occurrences50–49 Mya — about 0.2 occurrences49–47 Mya — about 0.6 occurrences47–46 Mya — about 1 occurrence46–45 Mya — about 1 occurrence45–43 Mya — about 1 occurrence43–42 Mya — about 1 occurrence42–40 Mya — about 9 occurrences40–39 Mya — about 13 occurrences39–37 Mya — about 9 occurrences37–36 Mya — about 3 occurrences36–34 Mya — about 3 occurrences34–33 Mya — about 6 occurrences33–31 Mya — about 6 occurrences31–30 Mya — about 6 occurrences30–28 Mya — about 6 occurrences28–27 Mya — about 4 occurrences27–25 Mya — about 0.5 occurrences25–24 Mya — about 0.5 occurrences24–22 Mya — about 0.2 occurrences61.66 Mya27.3 Mya66.9 Mya22.2 Mya

80 occurrences of Bayania on record, most of them in the Eocene. 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

80 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

21 formations

Falun de Jeurs — 48.48°N, 2.23°EGosport Sand — 31.54°N, 87.52°WGosport Sand — 31.55°N, 87.91°WCook Mountain — 32.32°N, 89.16°WCook Mountain — 32.04°N, 88.73°WLellinge Greensand — 55.71°N, 12.60°EFalun de Morigny — 48.45°N, 2.20°ESables a Nummulites variolarius — 49.25°N, 2.50°EFalun de Pierrefitte — 48.50°N, 2.25°ELisbon — 31.76°N, 88.10°WLisbon — 31.50°N, 87.80°WFalun d'Auvers-Saint-Georges — 47.40°N, 4.45°EEwekoro — 6.92°N, 3.19°ESelsey — 50.73°N, 0.78°WConglomerat de Pierrefitte — 48.50°N, 2.25°ESable de Vauroux-Saint-Antoine — 48.43°N, 2.15°ESable de Vauroux-Saint-Antoine — 48.50°N, 2.25°ECalcaire de Vigny — 49.07°N, 1.92°EBlackheath Beds — 51.43°N, 0.15°EBecton — 50.74°N, 1.69°WBarton Beds — 50.74°N, 1.69°WGatuncillo — 9.36°N, 79.90°WWarak — 19.04°N, 57.75°EQom — 31.52°N, 52.74°EPromina — 43.93°N, 16.10°E

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The named rock units Bayania has been recovered from, largest first. Drawn where the rock is now, not where it formed. 18 occurrences have no formation on record, which is common for older literature.

Bayania and its relatives

Eocene

Where Bayania and its relatives were recorded in the Eocene.

Found in the same rock

1,629 taxa

The Paleobiology Database records 61 sites for Bayania, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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

19 references

Each of the 80 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. 7 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 Bayania

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Bayania 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 itThiaridae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Munier-Chalmas 1877