Theodoxus

Theodoxus is a genus of nerites, small water snails with an operculum, some of which live in freshwater, and some in both freshwater and brackish water, aquatic gastropod mollusks in the family Neritidae, the nerites.

Theodoxus

Michal Maňas · CC BY 4.0 · 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
NeritininaePBDB
Diet
omnivore, grazerPBDB, for Neritidae
Life habit
epifaunalPBDB, for Neritidae
Motility
actively mobilePBDB, for Neritidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 61 million years on record.

The record covers at least 61.66 Mya to 129 ka. No occurrence read is dated outside 66 Mya to 11.7 ka.

Late Cretaceous — about 0 of 94 occurrencesPaleocene — about 1 of 94 occurrencesPaleoceneEocene — about 7 of 94 occurrencesEoceneOligocene — about 9 of 94 occurrencesOligoceneMiocene — about 66 of 94 occurrencesMiocenePliocene — about 8 of 94 occurrencesPleistocene — about 3 of 94 occurrences67–65 Mya — about 0.2 occurrences65–63 Mya — about 0.5 occurrences63–61 Mya — about 0.3 occurrences56–54 Mya — about 2 occurrences54–52 Mya — about 2 occurrences52–49 Mya — about 2 occurrences49–47 Mya — about 1.0 occurrences43–40 Mya — about 0.2 occurrences40–38 Mya — about 0.7 occurrences38–36 Mya — about 0.1 occurrences36–34 Mya — about 0.1 occurrences34–31 Mya — about 1 occurrence31–29 Mya — about 1 occurrence29–27 Mya — about 2 occurrences27–25 Mya — about 3 occurrences25–22 Mya — about 3 occurrences22–20 Mya — about 4 occurrences20–18 Mya — about 7 occurrences18–16 Mya — about 9 occurrences16–13 Mya — about 23 occurrences13–11 Mya — about 3 occurrences11–9.0 Mya — about 0.8 occurrences9.0–6.7 Mya — about 6 occurrences6.7–4.5 Mya — about 16 occurrences4.5–2.2 Mya — about 5 occurrences2.2–0 Mya — about 3 occurrences61.66 Mya129 ka67 Mya0 Mya

94 occurrences of Theodoxus on record, most of them in the Miocene. 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

94 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

17 formations

facies à Congeria — 45.05°N, 7.93°EKirchberg — 48.60°N, 10.72°EKirchberg — 48.62°N, 10.80°EKirchberg — 48.67°N, 10.98°EKirchberg — 48.45°N, 10.27°EKirchberg — 48.68°N, 10.82°EKirchberg — 48.57°N, 10.42°EKirchberg — 48.48°N, 10.48°EUpper Cyrena — 47.50°N, 19.08°EBorgloon — 50.80°N, 5.33°EBorgloon — 50.82°N, 5.46°EBorgloon — 51.00°N, 4.50°EReklaw — 30.88°N, 95.38°WReklaw — 30.80°N, 96.72°WBlackheath Beds — 51.43°N, 0.15°ETermofourà — 45.06°N, 7.82°EUpper Freshwater Molasse — 48.16°N, 10.11°EUpper Freshwater Molasse — 48.63°N, 11.80°ECalcaire de Mons — 50.45°N, 3.93°EVenta del Moro-Villatoya — 39.48°N, 1.35°WBarton Clay — 50.74°N, 1.69°WPielach — 48.18°N, 15.25°EVistula — 53.94°N, 19.33°EFalun de Saucats — 44.66°N, 0.57°WSkalica — 48.48°N, 16.65°EFeistring — 47.55°N, 15.25°EGrimmelfingen — 48.45°N, 10.27°E

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The named rock units Theodoxus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 42 occurrences have no formation on record, which is common for older literature.

Theodoxus and its relatives

Miocene

Where Theodoxus and its relatives were recorded in the Miocene.

Found in the same rock

1,504 taxa

The Paleobiology Database records 64 sites for Theodoxus, 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

31 references

Each of the 94 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. 19 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 Theodoxus

Credit
Michal Maňas
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.

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 itNeritininae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Monfort 1810