Retusa (Cylichnina)

Retusa (Cylichnina)

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
RetusaPBDB
Diet
carnivorePBDB, for Retusidae
Life habit
epifaunalPBDB, for Retusidae
Motility
actively mobilePBDB, for Retusidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 93 million years on record.

The record covers at least 93.9 Mya to 129 ka. No occurrence read is dated outside 100.5 Mya to 11.7 ka.

Early Cretaceous — about 0 of 274 occurrencesLate Cretaceous — about 4 of 274 occurrencesLate CretaceousPaleocene — about 10 of 274 occurrencesPaleoceneEocene — about 171 of 274 occurrencesEoceneOligocene — about 13 of 274 occurrencesOligoceneMiocene — about 71 of 274 occurrencesMiocenePliocene — about 4 of 274 occurrencesPleistocene — about 1 of 274 occurrences103–99 Mya — about 0.4 occurrences99–96 Mya — about 1 occurrence96–92 Mya — about 0.9 occurrences92–89 Mya — about 0.6 occurrences85–82 Mya — about 0.1 occurrences82–79 Mya — about 0.3 occurrences79–75 Mya — about 0.3 occurrences75–72 Mya — about 0.3 occurrences68–65 Mya — about 0.6 occurrences65–62 Mya — about 2 occurrences62–58 Mya — about 4 occurrences58–55 Mya — about 12 occurrences55–51 Mya — about 23 occurrences51–48 Mya — about 23 occurrences48–44 Mya — about 27 occurrences44–41 Mya — about 28 occurrences41–38 Mya — about 53 occurrences38–34 Mya — about 7 occurrences34–31 Mya — about 7 occurrences31–27 Mya — about 7 occurrences27–24 Mya — about 0.1 occurrences24–21 Mya — about 5 occurrences21–17 Mya — about 10 occurrences17–14 Mya — about 26 occurrences14–10 Mya — about 20 occurrences10–6.8 Mya — about 8 occurrences6.8–3.4 Mya — about 2 occurrences3.4–0 Mya — about 4 occurrences93.9 Mya129 ka103 Mya0 Mya

274 occurrences of Retusa (Cylichnina) on record, most of them in the Eocene. 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

274 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

70 formations

Cook Mountain — 32.35°N, 92.72°WCook Mountain — 32.10°N, 88.86°WCook Mountain — 32.32°N, 89.03°WCook Mountain — 32.36°N, 92.98°WCook Mountain — 30.62°N, 96.53°WCook Mountain — 31.26°N, 93.82°WCook Mountain — 30.90°N, 96.38°WCook Mountain — 32.51°N, 92.12°WCook Mountain — 31.49°N, 93.47°WCook Mountain — 32.32°N, 89.16°WCook Mountain — 31.20°N, 95.73°WCook Mountain — 31.25°N, 95.72°WCook Mountain — 30.63°N, 96.55°WCook Mountain — 30.07°N, 97.08°WLlajas — 34.31°N, 118.67°WLlajas — 34.32°N, 118.63°WLlajas — 34.23°N, 118.77°WJuncal — 34.77°N, 119.16°WJuncal — 34.47°N, 119.02°WJuncal — 34.40°N, 118.48°WJuncal — 34.55°N, 118.71°WJuncal — 34.56°N, 118.72°WAstoria — 46.19°N, 123.83°WAstoria — 44.73°N, 124.06°WAstoria — 43.40°N, 124.28°WReklaw — 30.80°N, 96.72°WReklaw — 30.01°N, 97.25°WGatun — 9.26°N, 79.91°WGatun — 9.35°N, 79.83°WGatun — 9.36°N, 79.84°WGosport Sand — 31.54°N, 87.52°WGosport Sand — 31.51°N, 87.89°WSanta Susana — 34.30°N, 118.68°WSanta Susana — 34.24°N, 118.74°WStone City — 30.53°N, 96.69°WRoseburg — 43.31°N, 123.12°WRoseburg — 43.02°N, 123.92°WRoseburg — 43.27°N, 123.45°WRoseburg — 43.24°N, 123.42°WFlournoy — 43.28°N, 123.08°WFlournoy — 43.26°N, 123.03°WFlournoy — 43.01°N, 123.91°WTyee — 43.74°N, 123.19°WTyee — 43.31°N, 123.08°WTyee — 42.99°N, 123.87°WTyee — 42.96°N, 123.85°WWeches — 30.68°N, 96.58°WWeches — 31.21°N, 96.02°WWeches — 30.18°N, 97.47°WWeches — 31.00°N, 96.83°WWeches — 31.25°N, 96.12°WEugene — 44.05°N, 123.09°WEugene — 44.04°N, 123.04°WSantiago — 33.77°N, 117.68°WSantiago — 33.76°N, 117.77°WSantiago — 33.72°N, 117.79°WMatilija — 34.54°N, 118.75°WMatilija — 34.54°N, 118.74°WSelsey — 50.73°N, 0.78°WFalun d'Auvers-Saint-Georges — 47.40°N, 4.45°EFalun de Jeurs — 48.48°N, 2.23°EBorgloon — 50.80°N, 5.33°EBorgloon — 51.00°N, 4.50°EPanoche — 35.88°N, 120.10°WPanoche — 37.21°N, 121.22°WTejon — 34.96°N, 118.87°WTejon — 34.92°N, 119.25°WTejon — 34.88°N, 118.87°WYegua — 30.24°N, 96.98°WYegua — 30.63°N, 96.51°WBateque — 26.75°N, 113.00°WBateque — 26.50°N, 112.73°W

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The named rock units Retusa (Cylichnina) has been recovered from, largest first. Drawn where the rock is now, not where it formed. 46 further formations hold fewer occurrences each and are not listed. 46 occurrences have no formation on record, which is common for older literature.

Retusa (Cylichnina) and its relatives

Eocene

Where Retusa (Cylichnina) and its relatives were recorded in the Eocene.

Found in the same rock

2,359 taxa

The Paleobiology Database records 200 sites for Retusa (Cylichnina), and this reads all 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

60 references

Each of the 274 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. 48 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 Retusa (Cylichnina)

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

No 3D scan of Retusa (Cylichnina) 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 through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Monterasato 1884)