Calyptraea

Calyptraea, commonly known as the Chinese hat snails, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae, a family which contains the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails.

Calyptraea

Georges Jansoone ( JoJan ) · CC BY 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
Also called
Chinese hat snailPBDB
Sits inside
CalyptraeidaePBDB
Diet
suspension feederPBDB
Life habit
epifaunalPBDB
Motility
facultatively mobile, attachedPBDB
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 100 million years on record.

The record covers at least 100.5 Mya to 129 ka. No occurrence read is dated outside 113.2 Mya to 0 Mya.

Early Cretaceous — about 2 of 860 occurrencesEarly CretaceousLate Cretaceous — about 13 of 860 occurrencesLate CretaceousPaleocene — about 44 of 860 occurrencesPaleoceneEocene — about 193 of 860 occurrencesEoceneOligocene — about 111 of 860 occurrencesOligoceneMiocene — about 292 of 860 occurrencesMiocenePliocene — about 115 of 860 occurrencesPleistocene — about 89 of 860 occurrences115–112 Mya — about 0.3 occurrences112–108 Mya — about 0.6 occurrences108–104 Mya — about 0.6 occurrences104–100 Mya — about 0.6 occurrences100–96 Mya — about 0.1 occurrences96–92 Mya — about 0.1 occurrences92–89 Mya — about 0.1 occurrences89–85 Mya — about 0.6 occurrences85–81 Mya — about 0.6 occurrences81–77 Mya — about 0.1 occurrences77–73 Mya — about 0.1 occurrences73–69 Mya — about 5 occurrences69–65 Mya — about 9 occurrences65–62 Mya — about 18 occurrences62–58 Mya — about 17 occurrences58–54 Mya — about 19 occurrences54–50 Mya — about 21 occurrences50–46 Mya — about 30 occurrences46–42 Mya — about 40 occurrences42–38 Mya — about 46 occurrences38–35 Mya — about 37 occurrences35–31 Mya — about 46 occurrences31–27 Mya — about 46 occurrences27–23 Mya — about 25 occurrences23–19 Mya — about 71 occurrences19–15 Mya — about 84 occurrences15–12 Mya — about 72 occurrences12–7.7 Mya — about 37 occurrences7.7–3.8 Mya — about 74 occurrences3.8–0 Mya — about 160 occurrences100.5 Mya129 ka115 Mya0 Mya

860 occurrences of Calyptraea on record, most of them in the Miocene. 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

860 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

235 formations

Vaqueros — 34.04°N, 120.04°WVaqueros — 33.54°N, 117.78°WVaqueros — 33.68°N, 117.76°WVaqueros — 33.65°N, 117.81°WVaqueros — 33.64°N, 117.59°WVaqueros — 34.33°N, 118.83°WVaqueros — 34.07°N, 119.66°WVaqueros — 34.04°N, 118.88°WVaqueros — 34.06°N, 118.85°WVaqueros — 34.06°N, 118.91°WVaqueros — 34.38°N, 118.84°WVaqueros — 34.36°N, 118.91°WVaqueros — 34.45°N, 118.92°WVaqueros — 34.57°N, 119.05°WVaqueros — 34.59°N, 120.23°WVaqueros — 34.92°N, 119.13°WVaqueros — 34.98°N, 120.21°WVaqueros — 35.27°N, 120.60°WVaqueros — 35.31°N, 120.04°WVaqueros — 35.25°N, 120.05°WVaqueros — 35.25°N, 120.06°WVaqueros — 35.31°N, 120.16°WVaqueros — 35.34°N, 120.13°WVaqueros — 35.78°N, 121.06°WVaqueros — 36.18°N, 121.31°WByram — 32.41°N, 90.84°WPancho Rico — 36.24°N, 121.29°WPancho Rico — 36.25°N, 121.29°WPancho Rico — 36.18°N, 121.18°WPancho Rico — 36.06°N, 121.19°WPancho Rico — 35.89°N, 121.05°WPancho Rico — 35.90°N, 120.84°WPancho Rico — 35.99°N, 120.91°WPancho Rico — 36.00°N, 120.45°WPancho Rico — 35.74°N, 120.83°WPancho Rico — 36.13°N, 121.02°WPancho Rico — 36.19°N, 120.86°WPancho Rico — 36.10°N, 120.88°WPancho Rico — 35.94°N, 120.68°WPancho Rico — 35.97°N, 120.73°WPico — 34.36°N, 118.56°WPico — 34.33°N, 118.72°WPico — 34.43°N, 118.70°WPico — 34.34°N, 118.47°WTejon — 34.94°N, 118.82°WTejon — 34.99°N, 118.83°WTejon — 34.96°N, 118.87°WTejon — 34.89°N, 119.14°WTejon — 34.93°N, 118.87°WTejon — 46.41°N, 122.98°WGatun — 9.35°N, 79.83°WGatun — 9.38°N, 79.82°WGatun — 9.26°N, 79.92°WFalun de Jeurs — 48.48°N, 2.23°EFlournoy — 43.28°N, 123.08°WFlournoy — 43.26°N, 123.03°WFlournoy — 43.01°N, 123.91°WFlournoy — 43.46°N, 123.57°WJuncal — 34.78°N, 119.15°WJuncal — 34.40°N, 118.48°WJuncal — 34.56°N, 118.72°WJuncal — 34.55°N, 118.72°WJuncal — 34.56°N, 118.75°WTowsley — 34.36°N, 118.51°WTowsley — 34.34°N, 118.54°WShoal River — 30.72°N, 86.12°WShoal River — 30.63°N, 86.17°WShoal River — 30.69°N, 86.65°WCastilletes — 11.95°N, 71.31°WFalun de Pierrefitte — 48.50°N, 2.25°ESpringvale — 10.62°N, 61.05°WRound Mountain Silt — 35.44°N, 118.81°WRound Mountain Silt — 35.43°N, 118.89°WEugene — 44.05°N, 123.09°WEugene — 44.04°N, 123.04°WEugene — 44.98°N, 123.21°WOak Grove — 30.90°N, 84.58°WOak Grove — 30.92°N, 86.57°WOak Grove — 30.97°N, 86.46°WEtchegoin — 36.02°N, 120.27°WEtchegoin — 36.25°N, 120.31°WEtchegoin — 36.23°N, 120.33°WEtchegoin — 36.95°N, 120.16°WLlajas — 34.32°N, 118.63°WLlajas — 34.31°N, 118.70°WRoseburg — 43.31°N, 123.12°WRoseburg — 43.01°N, 123.91°WRoseburg — 43.23°N, 123.41°WSanta Susana — 34.29°N, 118.69°WSanta Susana — 34.24°N, 118.74°WCaloosahatchee — 25.95°N, 81.36°WCaloosahatchee — 26.89°N, 82.01°WCaloosahatchee — 26.77°N, 81.15°WCaloosahatchee — 27.77°N, 82.68°WCaloosahatchee — 26.96°N, 81.17°WChipola — 30.44°N, 85.19°WChipola — 30.43°N, 84.98°WCapay — 39.21°N, 121.78°WCapay — 38.77°N, 122.20°W

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The named rock units Calyptraea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 211 further formations hold fewer occurrences each and are not listed. 150 occurrences have no formation on record, which is common for older literature.

Calyptraea and its relatives

Miocene

Where Calyptraea and its relatives were recorded in the Miocene.

Found in the same rock

3,636 taxa

The Paleobiology Database records 619 sites for Calyptraea, and this reads 240 of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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

253 references

Each of the 860 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. 241 further references are 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 Calyptraea

Credit
Georges Jansoone ( JoJan )
Licence
CC BY 3.0
Commercial use
the licence allows it

No 3D scan of Calyptraea 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. Lamarck 1799