Planaxis

Planaxis is a genus of small sea snails, marine gastropod molluscs in the family Planaxidae.

Planaxis

PD files · Public Domain · 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
PlanaxinaePBDB
Diet
grazerPBDB, for Planaxidae
Life habit
epifaunalPBDB, for Planaxidae
Motility
actively mobilePBDB, for Planaxidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 59 million years on record.

The record covers at least 59.24 Mya to 129 ka. No occurrence read is dated outside 61.66 Mya to 11.7 ka.

Paleocene — about 2 of 16 occurrencesPaleoceneEocene — about 1 of 16 occurrencesEoceneOligocene — about 0 of 16 occurrencesMiocene — about 1 of 16 occurrencesMiocenePliocene — about 4 of 16 occurrencesPleistocene — about 8 of 16 occurrences63–61 Mya — about 0.4 occurrences61–59 Mya — about 0.8 occurrences59–57 Mya — about 0.6 occurrences57–55 Mya — about 0.2 occurrences42–40 Mya — about 0.4 occurrences40–38 Mya — about 0.6 occurrences38–36 Mya — about 0.0 occurrences17–15 Mya — about 0.3 occurrences15–13 Mya — about 0.5 occurrences13–10 Mya — about 0.2 occurrences6.3–4.2 Mya — about 0.7 occurrences4.2–2.1 Mya — about 4 occurrences2.1–0 Mya — about 7 occurrences59.24 Mya129 ka63 Mya0 Mya

16 occurrences of Planaxis on record, most of them in the Pleistocene. 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

16 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

9 formations

Ewekoro — 6.92°N, 3.19°EAbisinia — 10.00°N, 63.00°WBowden — 17.88°N, 76.28°WPucangan — 7.49°S, 110.00°EFalmouth — 18.47°N, 77.40°WMare — 10.61°N, 63.52°WSables de Cresnes — 49.20°N, 2.02°ESondé — 8.00°S, 114.00°ESepultura — 28.55°N, 114.09°W

Loading coastlines…

The named rock units Planaxis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.

Planaxis and its relatives

Pleistocene

Where Planaxis and its relatives were recorded in the Pleistocene.

Found in the same rock

1,006 taxa

The Paleobiology Database records 9 sites for Planaxis, 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

13 references

Each of the 16 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. 1 further reference is 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 Planaxis

Credit
PD files
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Planaxis 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 itPlanaxinae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lamarck 1822