Tympanotonos (Diptychochilus)

Tympanotonos gradatus (Deshayes, 1833), a relative of Tympanotonos (Diptychochilus) — not Tympanotonos (Diptychochilus) itself

Not Tympanotonos (Diptychochilus). This is Tympanotonos gradatus (Deshayes, 1833), a relative — both are Potamididae.

Natural History Museum Rotterdam · CC BY 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
TympanotonosPBDB
Diet
grazerPBDB, for Potamididae
Life habit
epifaunalPBDB, for Potamididae
Motility
actively mobilePBDB, for Potamididae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 7 million years on record.

The record covers at least 48.07 Mya to 41.03 Mya. No occurrence read is dated outside 56 Mya to 37.71 Mya.

Paleocene — about 0 of 5 occurrencesEocene — about 5 of 5 occurrencesEocene57–56 Mya — about 0.0 occurrences56–55 Mya — about 0.2 occurrences55–55 Mya — about 0.2 occurrences55–54 Mya — about 0.2 occurrences54–53 Mya — about 0.2 occurrences53–53 Mya — about 0.2 occurrences53–52 Mya — about 0.2 occurrences52–51 Mya — about 0.2 occurrences51–51 Mya — about 0.2 occurrences51–50 Mya — about 0.2 occurrences50–49 Mya — about 0.2 occurrences49–49 Mya — about 0.2 occurrences49–48 Mya — about 0.2 occurrences48–47 Mya — about 0.1 occurrences47–47 Mya — about 0.1 occurrences47–46 Mya — about 0.1 occurrences46–46 Mya — about 0.1 occurrences46–45 Mya — about 0.1 occurrences45–44 Mya — about 0.1 occurrences44–44 Mya — about 0.1 occurrences44–43 Mya — about 0.1 occurrences43–42 Mya — about 0.1 occurrences42–42 Mya — about 0.1 occurrences42–41 Mya — about 0.1 occurrences41–40 Mya — about 0.4 occurrences40–40 Mya — about 0.4 occurrences40–39 Mya — about 0.4 occurrences39–38 Mya — about 0.4 occurrences38–38 Mya — about 0.4 occurrences38–37 Mya — about 0.1 occurrences48.07 Mya41.03 Mya56.5 Mya37.2 Mya

5 occurrences of Tympanotonos (Diptychochilus) on record, most of them in the Eocene. 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

5 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

Sables de Pierrefonds — 49.38°N, 3.00°ESables de Cresnes — 49.20°N, 2.02°E

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The named rock units Tympanotonos (Diptychochilus) has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Tympanotonos (Diptychochilus) and its relatives

Eocene

Where Tympanotonos (Diptychochilus) and its relatives were recorded in the Eocene.

Found in the same rock

83 taxa

The Paleobiology Database records 5 sites for Tympanotonos (Diptychochilus), 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

3 references

Each of the 5 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 Tympanotonos gradatus (Deshayes, 1833)

Source
GBIF
Credit
Natural History Museum Rotterdam
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. (Cossmann in Doncieux 1908)