Maoricolpus

Maoricolpus, common name the "New Zealand screw shells", is a genus of sea snails, marine gastropod molluscs in the family Turritellidae, the Turritella snails.

Maoricolpus

H. Zell · 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
TurritellinaePBDB
Diet
suspension feederPBDB, for Turritellidae
Life habit
semi-infaunalPBDB, for Turritellidae
Motility
facultatively mobilePBDB, for Turritellidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 22 million years on record.

The record covers at least 23.04 Mya to 774 ka. No occurrence read is dated outside 27.3 Mya to 129 ka.

Oligocene — about 11 of 31 occurrencesOligoceneMiocene — about 19 of 31 occurrencesMiocenePliocene — about 0 of 31 occurrencesPleistocene — about 1 of 31 occurrencesPleistocene28–27 Mya — about 1.0 occurrences27–26 Mya — about 2 occurrences26–25 Mya — about 2 occurrences25–24 Mya — about 2 occurrences24–23 Mya — about 2 occurrences23–22 Mya — about 1 occurrence22–21 Mya — about 1 occurrence21–20 Mya — about 2 occurrences20–19 Mya — about 2 occurrences19–19 Mya — about 2 occurrences19–18 Mya — about 3 occurrences18–17 Mya — about 3 occurrences17–16 Mya — about 3 occurrences16–15 Mya — about 0.6 occurrences15–14 Mya — about 0.6 occurrences14–13 Mya — about 0.6 occurrences13–12 Mya — about 0.6 occurrences12–11 Mya — about 0.3 occurrences928 ka–0 Mya — about 1 occurrence23.04 Mya774 ka27.8 Mya0 Mya

31 occurrences of Maoricolpus on record, most of them in the Miocene. 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

31 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

12 formations

Otekaike Limestone — 44.79°S, 170.51°EOtekaike Limestone — 45.79°S, 170.51°EOtekaike Limestone — 44.99°S, 170.33°ERifle Butts — 45.03°S, 170.02°ERifle Butts — 45.12°S, 170.93°ERifle Butts — 45.08°S, 170.95°ENaseby Greensand — 45.02°S, 170.12°EMount Brown — 44.16°S, 171.10°EMount Brown — 44.03°S, 170.72°EWaikari — 44.16°S, 171.10°EWaikari — 43.98°S, 171.11°EFyansford — 38.10°S, 144.35°EFyansford — 38.22°S, 145.03°EIhungia — 40.27°S, 176.22°EColville Sandstone — 29.37°S, 127.12°EGellibrand — 38.57°S, 143.33°EMuddy Creek — 37.73°S, 142.02°EWaiomio — 40.03°S, 175.48°EPakaurangi — 36.22°S, 174.28°E

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The named rock units Maoricolpus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Maoricolpus and its relatives

Miocene

Where Maoricolpus and its relatives were recorded in the Miocene.

Found in the same rock

234 taxa

The Paleobiology Database records 7 sites for Maoricolpus, 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

9 references

Each of the 31 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 Maoricolpus

Credit
H. Zell
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Maoricolpus 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 itTurritellinae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Finlay 1926