Perissodonta

Perissodonta is a genus of sea snails, marine gastropod mollusks in the family Struthiolariidae, the ostrich-foot snails.

Perissodonta

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
StruthiolariidaePBDB
Diet
grazerPBDB, for Stromboidea
Life habit
epifaunalPBDB, for Stromboidea
Motility
actively mobilePBDB, for Stromboidea
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 50 million years on record.

The record covers at least 61.66 Mya to 11.63 Mya. No occurrence read is dated outside 66 Mya to 7.246 Mya.

Late Cretaceous — about 0 of 28 occurrencesPaleocene — about 4 of 28 occurrencesPaleoceneEocene — about 23 of 28 occurrencesEoceneOligocene — about 0 of 28 occurrencesMiocene — about 1 of 28 occurrencesMiocene67–65 Mya — about 0.8 occurrences65–63 Mya — about 2 occurrences63–61 Mya — about 1 occurrence49–47 Mya — about 0.4 occurrences47–45 Mya — about 0.6 occurrences45–43 Mya — about 0.6 occurrences43–41 Mya — about 0.5 occurrences41–39 Mya — about 0.3 occurrences39–37 Mya — about 6 occurrences37–35 Mya — about 11 occurrences35–33 Mya — about 4 occurrences12–10 Mya — about 0.3 occurrences10–8.1 Mya — about 0.5 occurrences8.1–6.1 Mya — about 0.2 occurrences61.66 Mya11.63 Mya67 Mya6 Mya

28 occurrences of Perissodonta 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

28 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

7 formations

Submeseta — 64.25°S, 56.64°WSubmeseta — 64.24°S, 56.65°WSubmeseta — 64.24°S, 56.65°WSubmeseta — 64.26°S, 56.66°WWangaloa — 46.20°S, 169.92°EWangaloa — 46.20°S, 168.92°EJagüel — 38.13°S, 68.41°WOtaio Gorge Sandstone — 44.52°S, 170.93°EBroken River — 44.52°S, 170.93°ENavidad — 33.96°S, 71.87°WLa Meseta — 64.26°S, 56.62°W

Loading coastlines…

The named rock units Perissodonta has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Perissodonta and its relatives

Eocene

Where Perissodonta and its relatives were recorded in the Eocene.

Found in the same rock

110 taxa

The Paleobiology Database records 26 sites for Perissodonta, 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

5 references

Each of the 28 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 Perissodonta

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

No 3D scan of Perissodonta was found in Smithsonian Open Access and Sketchfab.

MorphoSource 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 itStruthiolariidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Marten 1878