Volvulella

Volvulella is a genus of gastropods belonging to the family Rhizoridae.

Volvulella

H. Zell · CC BY-SA 3.0 · 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
grazerPBDB
Life habit
epifaunalPBDB
Motility
actively mobilePBDB
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 65 million years on record.

The record covers at least 66 Mya to 11.7 ka. No occurrence read is dated outside 72.2 Mya to 0 Mya.

Late Cretaceous — about 2 of 242 occurrencesLate CretaceousPaleocene — about 2 of 242 occurrencesPaleoceneEocene — about 67 of 242 occurrencesEoceneOligocene — about 6 of 242 occurrencesOligoceneMiocene — about 118 of 242 occurrencesMiocenePliocene — about 31 of 242 occurrencesPleistocene — about 14 of 242 occurrences74–71 Mya — about 0.3 occurrences71–69 Mya — about 0.8 occurrences69–66 Mya — about 0.8 occurrences66–64 Mya — about 0.6 occurrences64–61 Mya — about 0.6 occurrences61–59 Mya — about 0.4 occurrences59–56 Mya — about 0.4 occurrences56–54 Mya — about 2 occurrences54–52 Mya — about 3 occurrences52–49 Mya — about 3 occurrences49–47 Mya — about 3 occurrences47–44 Mya — about 4 occurrences44–42 Mya — about 4 occurrences42–39 Mya — about 23 occurrences39–37 Mya — about 21 occurrences37–34 Mya — about 3 occurrences34–32 Mya — about 2 occurrences32–29 Mya — about 2 occurrences29–27 Mya — about 2 occurrences25–22 Mya — about 1 occurrence22–20 Mya — about 5 occurrences20–17 Mya — about 10 occurrences17–15 Mya — about 17 occurrences15–12 Mya — about 27 occurrences12–9.8 Mya — about 26 occurrences9.8–7.4 Mya — about 24 occurrences7.4–4.9 Mya — about 8 occurrences4.9–2.5 Mya — about 31 occurrences2.5–0 Mya — about 16 occurrences66 Mya11.7 ka74 Mya0 Mya

242 occurrences of Volvulella on record, most of them in the Miocene. 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

242 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

59 formations

Cook Mountain — 31.03°N, 95.63°WCook Mountain — 31.12°N, 95.90°WCook Mountain — 30.62°N, 96.56°WCook Mountain — 31.20°N, 95.73°WCook Mountain — 31.25°N, 95.72°WCook Mountain — 30.63°N, 96.54°WCook Mountain — 31.35°N, 95.52°WGatun — 9.38°N, 79.82°WGatun — 9.27°N, 79.92°WGatun — 9.35°N, 79.83°WReklaw — 30.88°N, 95.38°WReklaw — 30.11°N, 97.32°WReklaw — 30.01°N, 97.26°WReklaw — 30.80°N, 96.72°WShoal River — 30.72°N, 86.12°WShoal River — 30.69°N, 86.65°WEscudo de Veraguas — 9.09°N, 81.55°WEscudo de Veraguas — 9.10°N, 81.57°WSelsey — 50.73°N, 0.78°WRound Mountain Silt — 35.43°N, 118.81°WChipola — 30.44°N, 85.19°WOak Grove — 30.92°N, 86.57°WBowden — 17.88°N, 76.28°WCercado — 19.47°N, 71.08°WCercado — 19.52°N, 71.27°WCercado — 19.42°N, 71.08°WRio Banano — 9.91°N, 83.09°WRio Banano — 9.63°N, 82.82°WCayo Agua — 9.14°N, 82.01°WCayo Agua — 9.15°N, 82.03°WPalos Verdes Sand — 33.80°N, 118.16°WPalos Verdes Sand — 33.99°N, 118.45°WPalos Verdes Sand — 33.60°N, 117.88°WPalos Verdes Sand — 33.74°N, 118.28°WMare — 10.61°N, 63.52°WMare — 10.64°N, 64.11°WGosport Sand — 31.54°N, 87.52°WGosport Sand — 31.55°N, 87.91°WDry Creek Sands — 34.75°S, 138.68°EDry Creek Sands — 34.91°S, 138.56°EDry Creek Sands — 34.85°S, 138.60°EBerada — 51.10°N, 5.80°EWeches — 31.11°N, 96.28°WWeches — 31.00°N, 96.83°WProvidence — 31.73°N, 85.11°WCaloosahatchee — 26.89°N, 82.01°WCaloosahatchee — 27.77°N, 82.68°WBarton Clay — 50.74°N, 1.69°WJackson — 26.27°N, 98.82°WBohio — 9.18°N, 79.88°W

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The named rock units Volvulella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 35 further formations hold fewer occurrences each and are not listed. 39 occurrences have no formation on record, which is common for older literature.

Volvulella and its relatives

Miocene

Where Volvulella and its relatives were recorded in the Miocene.

Found in the same rock

3,720 taxa

The Paleobiology Database records 154 sites for Volvulella, 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

48 references

Each of the 242 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. 36 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 Volvulella

Credit
H. Zell
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Volvulella was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Newton 1891