Penion marwicki

Penion marwicki is an extinct species of marine snail or whelk, belonging to the true whelk family Austrosiphonidae.

Penion marwicki

Auckland Museum · 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
PenionPBDB
Diet
carnivorePBDB, for Neogastropoda
Life habit
epifaunalPBDB, for Neogastropoda
Motility
actively mobilePBDB, for Neogastropoda
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 17 million years on record.

The record covers at least 18.7 Mya to 1.63 Mya. No occurrence read is dated outside 23.04 Mya to 340 ka.

Oligocene — about 0 of 11 occurrencesMiocene — about 10 of 11 occurrencesMiocenePliocene — about 0 of 11 occurrencesPleistocene — about 1 of 11 occurrencesPleistocene24–23 Mya — about 0.0 occurrences23–22 Mya — about 0.1 occurrences22–21 Mya — about 0.4 occurrences21–20 Mya — about 0.5 occurrences20–20 Mya — about 0.5 occurrences20–19 Mya — about 0.5 occurrences19–18 Mya — about 2 occurrences18–17 Mya — about 2 occurrences17–16 Mya — about 2 occurrences16–16 Mya — about 2 occurrences2.4–1.6 Mya — about 0.0 occurrences1.6–785 ka Mya — about 0.6 occurrences785 ka–0 Mya — about 0.3 occurrences18.7 Mya1.63 Mya23.5 Mya0 Mya

11 occurrences of Penion marwicki 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

11 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

Rifle Butts — 45.03°S, 170.02°ERifle Butts — 45.12°S, 170.93°ERifle Butts — 45.08°S, 170.95°EIhungia — 40.27°S, 176.22°EIhungia — 40.30°S, 176.28°EMount Brown — 44.16°S, 171.10°EMount Brown — 44.03°S, 170.72°ETainui Shell Bed — 39.95°S, 174.98°E

Loading coastlines…

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

Penion marwicki and its relatives

Miocene

Where Penion marwicki and its relatives were recorded in the Miocene.

Found in the same rock

54 taxa

The Paleobiology Database records 2 sites for Penion marwicki, 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 11 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 Penion marwicki

Credit
Auckland Museum
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Penion marwicki 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 itPenion through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Finlay 1930)