Menetus

Menetus is a North American genus of freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ramshorn snails.

Menetus

via iDigBio · CC0 · 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
BulininaePBDB
Life habit
epifaunalPBDB, for Gastropoda
Motility
actively mobilePBDB, for Gastropoda
Vision
limitedPBDB, for Gastropoda
Environment
freshwaterPBDB, for Planorbidae

Time the record covers

At least 241 million years on record.

The record covers at least 241.464 Mya to 129 ka. No occurrence read is dated outside 248.6 Mya to 11.7 ka.

Permian — about 0 of 10 occurrencesEarly Triassic — about 0 of 10 occurrencesMiddle Triassic — about 1 of 10 occurrencesLate Triassic — about 0 of 10 occurrencesEarly Jurassic — about 0 of 10 occurrencesMiddle Jurassic — about 0 of 10 occurrencesLate Jurassic — about 0 of 10 occurrencesEarly Cretaceous — about 0 of 10 occurrencesLate Cretaceous — about 0 of 10 occurrencesPaleocene — about 0 of 10 occurrencesEocene — about 2 of 10 occurrencesEoceneOligocene — about 0 of 10 occurrencesMiocene — about 0 of 10 occurrencesPliocene — about 4 of 10 occurrencesPleistocene — about 3 of 10 occurrences254–245 Mya — about 0.5 occurrences245–237 Mya — about 0.5 occurrences59–51 Mya — about 0.5 occurrences51–42 Mya — about 0.8 occurrences42–34 Mya — about 0.8 occurrences8.5–0 Mya — about 7 occurrences241.464 Mya129 ka254 Mya0 Mya

10 occurrences of Menetus on record, most of them in the Pliocene. 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

10 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

4 formations

Truckee — 39.87°N, 118.75°WBurgersdorp — 31.00°S, 26.33°EShuler — 32.71°N, 96.71°WCareaga Sandstone — 34.74°N, 120.41°W

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The named rock units Menetus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Menetus and its relatives

Pliocene

Where Menetus and its relatives were recorded in the Pliocene.

Found in the same rock

128 taxa

The Paleobiology Database records 10 sites for Menetus, 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

7 references

Each of the 10 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 Menetus

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Menetus 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.

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 itBulininae through timeFormations of the PlioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Adams 1855