Maoricrypta

Maoricrypta is a genus of small to medium-sized sea snails, marine gastropod molluscs in the family Calyptraeidae, the slipper snails, cup and saucer shells and Chinese hat shells.

Maoricrypta

GrahamBould · 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
CalyptraeidaePBDB
Diet
suspension feederPBDB, for Calyptraeidae
Life habit
epifaunalPBDB, for Calyptraeidae
Motility
facultatively mobile, attachedPBDB, for Calyptraeidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 36 million years on record.

The record covers at least 37.71 Mya to 1.63 Mya. No occurrence read is dated outside 41.03 Mya to 340 ka.

Eocene — about 2 of 26 occurrencesEoceneOligocene — about 10 of 26 occurrencesOligoceneMiocene — about 12 of 26 occurrencesMiocenePliocene — about 1 of 26 occurrencesPleistocene — about 1 of 26 occurrences42–40 Mya — about 0.2 occurrences40–39 Mya — about 0.4 occurrences39–38 Mya — about 0.4 occurrences38–36 Mya — about 0.4 occurrences36–35 Mya — about 0.4 occurrences35–33 Mya — about 0.3 occurrences28–27 Mya — about 2 occurrences27–25 Mya — about 3 occurrences25–24 Mya — about 3 occurrences24–22 Mya — about 2 occurrences22–21 Mya — about 0.5 occurrences21–20 Mya — about 0.7 occurrences20–18 Mya — about 2 occurrences18–17 Mya — about 3 occurrences17–15 Mya — about 2 occurrences15–14 Mya — about 0.4 occurrences14–13 Mya — about 0.4 occurrences13–11 Mya — about 0.5 occurrences11–9.8 Mya — about 0.7 occurrences9.8–8.4 Mya — about 0.7 occurrences8.4–7.0 Mya — about 0.7 occurrences7.0–5.6 Mya — about 0.7 occurrences5.6–4.2 Mya — about 0.5 occurrences4.2–2.8 Mya — about 0.5 occurrences2.8–1.4 Mya — about 0.3 occurrences1.4–0 Mya — about 0.8 occurrences37.71 Mya1.63 Mya41.8 Mya0 Mya

26 occurrences of Maoricrypta 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

26 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

11 formations

Naseby Greensand — 44.98°S, 170.28°ENaseby Greensand — 45.02°S, 170.12°ERifle Butts — 45.12°S, 170.93°EDry Creek Sands — 34.75°S, 138.68°EDry Creek Sands — 34.95°S, 138.57°EOtekaike Limestone — 44.24°S, 170.69°EOtekaike Limestone — 45.79°S, 170.51°EOtekaike Limestone — 44.84°S, 170.52°EMount Brown — 44.16°S, 171.10°EMount Brown — 44.03°S, 170.72°EChatton — 45.99°S, 169.91°ETapui Glauconitic Sandstone — 44.96°S, 170.65°EWilson Bluff — 32.07°S, 126.10°EFyansford — 38.22°S, 145.03°ETainui Shell Bed — 39.95°S, 174.98°EBuckingham — 25.70°N, 80.40°W

Loading coastlines…

The named rock units Maoricrypta 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.

Maoricrypta and its relatives

Miocene

Where Maoricrypta and its relatives were recorded in the Miocene.

Found in the same rock

195 taxa

The Paleobiology Database records 6 sites for Maoricrypta, 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

10 references

Each of the 26 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 Maoricrypta

Credit
GrahamBould
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Maoricrypta 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 itCalyptraeidae through timeFormations of the MioceneThe world it lived on

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