Calyptraea mamillaris

Calyptraea mamillaris

Broderip, 1834 · CC0 · via Wikidata/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
CalyptraeaPBDB
Diet
suspension feederPBDB, for Calyptraea
Life habit
epifaunalPBDB, for Calyptraea
Motility
facultatively mobile, attachedPBDB, for Calyptraea
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 55 million years on record.

The record covers at least 56 Mya to 129 ka. No occurrence read is dated outside 66 Mya to 0 Mya.

Late Cretaceous — about 0 of 20 occurrencesPaleocene — about 1 of 20 occurrencesPaleoceneEocene — about 0 of 20 occurrencesOligocene — about 0 of 20 occurrencesMiocene — about 2 of 20 occurrencesMiocenePliocene — about 3 of 20 occurrencesPleistocene — about 14 of 20 occurrences67–65 Mya — about 0.1 occurrences65–63 Mya — about 0.2 occurrences63–61 Mya — about 0.2 occurrences61–58 Mya — about 0.2 occurrences58–56 Mya — about 0.2 occurrences56–54 Mya — about 0.0 occurrences25–22 Mya — about 0.1 occurrences22–20 Mya — about 0.4 occurrences20–18 Mya — about 0.8 occurrences18–16 Mya — about 0.7 occurrences6.7–4.5 Mya — about 0.5 occurrences4.5–2.2 Mya — about 3 occurrences2.2–0 Mya — about 13 occurrences56 Mya129 ka67 Mya0 Mya

20 occurrences of Calyptraea mamillaris 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

20 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

13 formations

Palos Verdes Sand — 33.80°N, 118.16°WPalos Verdes Sand — 33.74°N, 118.28°WFernando — 34.05°N, 118.25°WFernando — 34.05°N, 118.26°WSanta Barbara — 34.40°N, 119.69°WSan Pedro Sand — 33.74°N, 118.28°WLodo — 36.60°N, 120.69°WUnnamed — 33.24°N, 119.47°WJama — 0.18°S, 80.32°WArmuelles — 8.03°N, 82.92°WSan Diego — 32.49°N, 117.12°WPacific Muck — 8.93°N, 79.56°WTemblor — 35.88°N, 120.10°WTimms Point Silt — 33.73°N, 118.28°WOlcese — 35.45°N, 118.87°W

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The named rock units Calyptraea mamillaris 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.

Calyptraea mamillaris and its relatives

Pleistocene

Where Calyptraea mamillaris and its relatives were recorded in the Pleistocene.

Found in the same rock

881 taxa

The Paleobiology Database records 17 sites for Calyptraea mamillaris, 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

16 references

Each of the 20 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. 4 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 mamillaris

Credit
Broderip, 1834
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Calyptraea mamillaris 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.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itCalyptraea through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Broderip 1834)