Punctum

Punctum is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the subfamily Punctinae of the family Punctidae, the dot snails.

Punctum

Mikeydanger · CC BY-SA 3.0 · 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
PunctidaePBDB
Life habit
epifaunalPBDB, for Gastropoda
Motility
actively mobilePBDB, for Gastropoda
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 11 million years on record.

The record covers at least 12.75 Mya to 774 ka. No occurrence read is dated outside 13.82 Mya to 11.7 ka.

Miocene — about 4 of 7 occurrencesMiocenePliocene — about 0 of 7 occurrencesPliocenePleistocene — about 3 of 7 occurrencesPleistocene14–13 Mya — about 0.8 occurrences13–13 Mya — about 0.9 occurrences13–12 Mya — about 0.6 occurrences12–12 Mya — about 0.4 occurrences12–11 Mya — about 0.3 occurrences9.1–8.6 Mya — about 0.0 occurrences8.6–8.1 Mya — about 0.1 occurrences8.1–7.6 Mya — about 0.1 occurrences7.6–7.2 Mya — about 0.1 occurrences7.2–6.7 Mya — about 0.1 occurrences6.7–6.2 Mya — about 0.1 occurrences6.2–5.7 Mya — about 0.1 occurrences5.7–5.3 Mya — about 0.1 occurrences5.3–4.8 Mya — about 0.0 occurrences2.9–2.4 Mya — about 0.2 occurrences2.4–1.9 Mya — about 0.4 occurrences1.9–1.4 Mya — about 0.4 occurrences1.4–955 ka Mya — about 0.4 occurrences955 ka–477 ka Mya — about 0.8 occurrences477 ka–0 Mya — about 0.9 occurrences12.75 Mya774 ka14.3 Mya0 Mya

7 occurrences of Punctum on record, most of them in the Miocene. 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

7 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.

Punctum and its relatives

Miocene

Where Punctum and its relatives were recorded in the Miocene.

Found in the same rock

122 taxa

The Paleobiology Database records 5 sites for Punctum, 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

6 references

Each of the 7 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 Punctum

Credit
Mikeydanger
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Punctum 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 itPunctidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Morse 1864