Cylichnina petrosa

Cylichnina Monterosato, 1884, a relative of Cylichnina petrosa — not Cylichnina petrosa itself

Not Cylichnina petrosa. This is Cylichnina Monterosato, 1884, a relative — both are Retusidae.

Mr Arthur G. Wrigley · CC0 · via GBIF. 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
Retusa (Cylichnina)PBDB
Diet
carnivorePBDB, for Retusidae
Life habit
epifaunalPBDB, for Retusidae
Motility
actively mobilePBDB, for Retusidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At most 6.7 million years on record.

Every occurrence read is dated to somewhere between 20.45 Mya and 13.82 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Miocene — about 9 of 9 occurrencesMiocene21–20 Mya — about 0.0 occurrences20–20 Mya — about 0.1 occurrences20–20 Mya — about 0.1 occurrences20–20 Mya — about 0.1 occurrences20–19 Mya — about 0.1 occurrences19–19 Mya — about 0.1 occurrences19–19 Mya — about 0.1 occurrences19–19 Mya — about 0.1 occurrences19–18 Mya — about 0.1 occurrences18–18 Mya — about 0.1 occurrences18–18 Mya — about 0.1 occurrences18–18 Mya — about 0.1 occurrences18–17 Mya — about 0.1 occurrences17–17 Mya — about 0.1 occurrences17–17 Mya — about 0.1 occurrences17–17 Mya — about 0.1 occurrences17–16 Mya — about 0.1 occurrences16–16 Mya — about 0.1 occurrences16–16 Mya — about 0.4 occurrences16–16 Mya — about 0.8 occurrences16–15 Mya — about 0.8 occurrences15–15 Mya — about 0.8 occurrences15–15 Mya — about 0.8 occurrences15–15 Mya — about 0.8 occurrences15–14 Mya — about 0.8 occurrences14–14 Mya — about 0.8 occurrences14–14 Mya — about 0.8 occurrences14–14 Mya — about 0.0 occurrences20.9 Mya13.3 Mya

9 occurrences of Cylichnina petrosa on record, most of them in the Miocene. 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

9 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

1 formation

Astoria — 46.19°N, 123.83°WAstoria — 44.73°N, 124.06°WAstoria — 43.40°N, 124.28°W

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

Cylichnina petrosa and its relatives

Miocene

Where Cylichnina petrosa and its relatives were recorded in the Miocene.

Found in the same rock

42 taxa

The Paleobiology Database records 2 sites for Cylichnina petrosa, 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

2 references

Each of the 9 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 Cylichnina Monterosato, 1884

Source
GBIF
Credit
Mr Arthur G. Wrigley
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Cylichnina petrosa was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itRetusa (Cylichnina) through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Conrad 1848)