Retusa

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 least 161 million years on record.

The record covers at least 161.5 Mya to 11.7 ka. No occurrence read is dated outside 165.3 Mya to 0 Mya.

Middle Jurassic — about 5 of 544 occurrencesLate Jurassic — about 0 of 544 occurrencesEarly Cretaceous — about 0 of 544 occurrencesLate Cretaceous — about 7 of 544 occurrencesLate CretaceousPaleocene — about 59 of 544 occurrencesEocene — about 306 of 544 occurrencesEoceneOligocene — about 20 of 544 occurrencesMiocene — about 99 of 544 occurrencesMiocenePliocene — about 7 of 544 occurrencesPleistocene — about 34 of 544 occurrences169–163 Mya — about 3 occurrences163–157 Mya — about 2 occurrences101–96 Mya — about 2 occurrences96–90 Mya — about 2 occurrences90–84 Mya — about 1 occurrence84–79 Mya — about 1 occurrence79–73 Mya — about 0.8 occurrences73–67 Mya — about 0.4 occurrences67–62 Mya — about 27 occurrences62–56 Mya — about 31 occurrences56–51 Mya — about 53 occurrences51–45 Mya — about 65 occurrences45–39 Mya — about 113 occurrences39–34 Mya — about 77 occurrences34–28 Mya — about 16 occurrences28–22 Mya — about 4 occurrences22–17 Mya — about 19 occurrences17–11 Mya — about 55 occurrences11–5.6 Mya — about 24 occurrences5.6–0 Mya — about 49 occurrences161.5 Mya11.7 ka169 Mya0 Mya

544 occurrences of Retusa 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

544 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

110 formations

Cook Mountain — 31.29°N, 86.56°WCook Mountain — 31.31°N, 86.48°WCook Mountain — 31.25°N, 95.73°WCook Mountain — 32.32°N, 89.03°WCook Mountain — 32.17°N, 88.83°WCook Mountain — 32.32°N, 89.16°WCook Mountain — 32.04°N, 88.73°WCook Mountain — 32.35°N, 92.72°WCook Mountain — 32.10°N, 88.86°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 — 31.12°N, 95.90°WCook Mountain — 31.20°N, 95.73°WCook Mountain — 30.63°N, 96.55°WCook Mountain — 31.11°N, 96.28°WCook Mountain — 30.07°N, 97.08°WMoodys Branch — 32.85°N, 90.41°WMoodys Branch — 32.95°N, 90.17°WMoodys Branch — 32.23°N, 92.15°WMoodys Branch — 32.01°N, 92.00°WMoodys Branch — 32.33°N, 90.15°WMoodys Branch — 31.88°N, 88.69°WMoodys Branch — 31.84°N, 88.25°WMoodys Branch — 31.26°N, 93.82°WMoodys Branch — 31.67°N, 92.89°WMoodys Branch — 31.97°N, 88.53°WMoodys Branch — 32.98°N, 90.30°WLlajas — 34.31°N, 118.67°WLlajas — 34.32°N, 118.63°WLlajas — 34.23°N, 118.77°WLisbon — 31.53°N, 87.60°WLisbon — 31.84°N, 88.25°WLisbon — 31.50°N, 87.80°WLisbon — 31.76°N, 88.10°WLisbon — 31.30°N, 86.48°WLisbon — 31.53°N, 87.50°WLisbon — 31.82°N, 88.24°WGosport Sand — 31.52°N, 87.90°WGosport Sand — 31.54°N, 87.52°WGosport Sand — 31.50°N, 87.80°WGosport Sand — 31.53°N, 87.57°WGosport Sand — 31.13°N, 87.93°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°WKincaid — 31.28°N, 96.98°WKincaid — 31.67°N, 96.47°WKincaid — 30.80°N, 96.95°WKincaid — 31.37°N, 96.69°WKincaid — 31.10°N, 96.83°WKincaid — 31.29°N, 96.72°WWeches — 31.76°N, 93.09°WWeches — 30.67°N, 96.37°WWeches — 30.68°N, 96.58°WWeches — 31.21°N, 96.02°WWeches — 31.11°N, 96.28°WWeches — 30.18°N, 97.47°WWeches — 31.00°N, 96.83°WWeches — 31.59°N, 94.84°WWeches — 31.25°N, 96.12°WWeches — 30.01°N, 97.16°WWeches — 31.22°N, 96.06°WReklaw — 30.88°N, 95.38°WReklaw — 30.11°N, 97.32°WReklaw — 30.01°N, 97.26°WReklaw — 30.80°N, 96.72°WHatchetigbee Bluff — 32.08°N, 88.22°WHatchetigbee Bluff — 32.37°N, 88.68°WHatchetigbee Bluff — 31.93°N, 88.05°WHatchetigbee Bluff — 31.35°N, 86.08°WHatchetigbee Bluff — 31.32°N, 86.00°WAstoria — 46.19°N, 123.83°WAstoria — 44.73°N, 124.06°WAstoria — 43.40°N, 124.28°WBerada — 51.10°N, 5.80°ETuscahoma — 31.85°N, 87.53°WTuscahoma — 31.78°N, 87.42°WGatun — 9.26°N, 79.91°WGatun — 9.35°N, 79.83°WGatun — 9.36°N, 79.84°WNorwich Crag — 52.58°N, 1.38°EPorters Creek — 32.23°N, 88.00°WPorters Creek — 32.02°N, 87.43°WPorters Creek — 31.98°N, 87.28°WSanta Susana — 34.30°N, 118.68°WSanta Susana — 34.24°N, 118.74°WCrockett — 30.63°N, 96.54°WCrockett — 30.67°N, 96.37°WCrockett — 31.40°N, 93.70°WStone City — 30.53°N, 96.69°WFalun d'Auvers-Saint-Georges — 47.40°N, 4.45°ELellinge Greensand — 55.71°N, 12.60°EDry Creek Sands — 34.75°S, 138.68°EDry Creek Sands — 34.91°S, 138.56°ERoseburg — 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°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. 86 further formations hold fewer occurrences each and are not listed. 73 occurrences have no formation on record, which is common for older literature.

Retusa and its relatives

Eocene

Where Retusa and its relatives were recorded in the Eocene.

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

112 references

Each of the 544 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. 100 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 content4

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 scan

Licence
CC0 — this site’s default, not the record’s
Commercial use
the licence allows it
Specimen
Madrepora retusa

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Terebratulina retusa · usnm:Acc399724

3D model

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

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 EoceneThe world it lived on

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