Retusa

Searched as Retusa cf. scutata. The Paleobiology Database treats Retusa as the accepted name.

Retusa is a genus of very small head-shield sea snails or barrel-bubble snails, marine gastropod molluscs in the family Retusidae.

Retusa

Yasunori Kano, Bastian Brenzinger, Alexander Nützel, Nerida G. Wilson & Michael Schrödl · 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
RetusidaePBDB
Diet
carnivorePBDB, for Retusidae
Life habit
epifaunalPBDB, for Retusidae
Motility
actively mobilePBDB, for Retusidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At most 17 million years on record.

Every occurrence read is dated to somewhere between 72.2 Mya and 56 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Cretaceous — about 1 of 2 occurrencesLate CretaceousPaleocene — about 1 of 2 occurrencesPaleoceneEocene — about 0 of 2 occurrences73–72 Mya — about 0.0 occurrences72–72 Mya — about 0.1 occurrences72–71 Mya — about 0.1 occurrences71–70 Mya — about 0.1 occurrences70–70 Mya — about 0.1 occurrences70–69 Mya — about 0.1 occurrences69–69 Mya — about 0.1 occurrences69–68 Mya — about 0.1 occurrences68–68 Mya — about 0.1 occurrences68–67 Mya — about 0.1 occurrences67–66 Mya — about 0.1 occurrences66–66 Mya — about 0.1 occurrences66–65 Mya — about 0.1 occurrences65–65 Mya — about 0.1 occurrences65–64 Mya — about 0.1 occurrences64–64 Mya — about 0.1 occurrences64–63 Mya — about 0.1 occurrences63–62 Mya — about 0.1 occurrences62–62 Mya — about 0.1 occurrences62–61 Mya — about 0.1 occurrences61–61 Mya — about 0.1 occurrences61–60 Mya — about 0.1 occurrences60–60 Mya — about 0.1 occurrences60–59 Mya — about 0.1 occurrences59–58 Mya — about 0.1 occurrences58–58 Mya — about 0.1 occurrences58–57 Mya — about 0.1 occurrences57–57 Mya — about 0.1 occurrences57–56 Mya — about 0.1 occurrences56–56 Mya — about 0.0 occurrences72.7 Mya55.5 Mya

2 occurrences of Retusa on record, most of them in the Late Cretaceous. 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

2 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

2 formations

Cerro Dorotea — 51.30°S, 72.32°WLefipan — 43.05°S, 69.35°W

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

Retusa and its relatives

Late Cretaceous

Where Retusa and its relatives were recorded in the Late Cretaceous.

Found in the same rock

2,271 taxa

The Paleobiology Database records 408 sites for Retusa, 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

2 references

Each of the 2 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content2

Picture of Retusa

Credit
Yasunori Kano, Bastian Brenzinger, Alexander Nützel, Nerida G. Wilson & Michael Schrödl
Licence
CC BY 4.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

Smithsonian Open Access and MorphoSource were 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 itRetusidae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Brown 1827