Gervillia

Gervillia is an extinct genus of prehistoric bivalves belonging to the family Bakevelliidae.

Gervillia

Hectonichus · 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
BakevelliidaePBDB
Diet
suspension feederPBDB
Life habit
semi-infaunalPBDB
Motility
stationary, attachedPBDB
Vision
blindPBDB, for Bivalvia
Environment
marine,brackishPBDB, for Ostreida

Time the record covers

At least 264 million years on record.

The record covers at least 306 Mya to 41.03 Mya. No occurrence read is dated outside 323.4 Mya to 37.71 Mya.

Carboniferous — about 8 of 537 occurrencesCarboniferousPermian — about 21 of 537 occurrencesPermianEarly Triassic — about 23 of 537 occurrencesMiddle Triassic — about 85 of 537 occurrencesLate Triassic — about 167 of 537 occurrencesLate TriassicEarly Jurassic — about 55 of 537 occurrencesEarly JurassicMiddle Jurassic — about 26 of 537 occurrencesLate Jurassic — about 28 of 537 occurrencesEarly Cretaceous — about 60 of 537 occurrencesEarly CretaceousLate Cretaceous — about 63 of 537 occurrencesLate CretaceousPaleocene — about 1 of 537 occurrencesEocene — about 1 of 537 occurrencesOligocene — about 0 of 537 occurrences329–319 Mya — about 0.2 occurrences319–309 Mya — about 2 occurrences309–299 Mya — about 5 occurrences299–289 Mya — about 1 occurrence289–280 Mya — about 1 occurrence280–270 Mya — about 0.8 occurrences270–260 Mya — about 13 occurrences260–250 Mya — about 18 occurrences250–240 Mya — about 71 occurrences240–230 Mya — about 78 occurrences230–220 Mya — about 22 occurrences220–210 Mya — about 11 occurrences210–200 Mya — about 89 occurrences200–190 Mya — about 28 occurrences190–181 Mya — about 15 occurrences181–171 Mya — about 8 occurrences171–161 Mya — about 21 occurrences161–151 Mya — about 14 occurrences151–141 Mya — about 14 occurrences141–131 Mya — about 7 occurrences131–121 Mya — about 12 occurrences121–111 Mya — about 28 occurrences111–101 Mya — about 11 occurrences101–91 Mya — about 20 occurrences91–82 Mya — about 5 occurrences82–72 Mya — about 7 occurrences72–62 Mya — about 33 occurrences62–52 Mya — about 0.0 occurrences42–32 Mya — about 1 occurrence306 Mya41.03 Mya329 Mya32 Mya

537 occurrences of Gervillia on record, most of them in the Late Triassic. 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

537 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

155 formations

Cassian — 46.68°N, 12.15°ECassian — 46.54°N, 11.62°ECassian — 46.52°N, 11.96°ECassian — 46.54°N, 12.10°ECassian — 46.64°N, 12.20°ECassian — 46.55°N, 11.93°ECassian — 46.58°N, 12.25°ECassian — 46.57°N, 11.94°EKossen — 47.78°N, 13.80°EKossen — 47.66°N, 12.45°EKossen — 47.57°N, 11.77°EKossen — 47.75°N, 14.73°EKossen — 47.67°N, 12.70°EKossen — 47.79°N, 15.17°EKoessen — 47.00°N, 13.00°EKoessen — 47.71°N, 13.20°EKoessen — 47.67°N, 12.70°EQingyan — 26.33°N, 106.68°EQingyan — 26.92°N, 108.73°EChari — 23.50°N, 70.50°EAberhan Sinemur — 33.47°S, 70.75°WHornos-Siles — 38.38°N, 2.58°WHornos-Siles — 38.17°N, 2.75°WHornos-Siles — 38.20°N, 2.73°WFjerritslev — 56.56°N, 10.01°EAtherfield Clay — 50.61°N, 1.36°WAtherfield Clay — 50.60°N, 1.32°WNayband — 32.50°N, 57.35°ENayband — 33.00°N, 57.00°ENayband — 32.39°N, 57.45°ERiachuelo — 10.71°S, 37.18°WRiachuelo — 10.63°S, 37.03°WViganvar — 46.11°N, 18.18°EKiowa — 38.53°N, 97.90°WKiowa — 38.76°N, 97.75°WKiowa — 38.75°N, 97.79°WKiowa — 38.76°N, 97.86°WMancos Shale — 36.18°N, 109.88°WMancos Shale — 36.16°N, 109.84°WMancos Shale — 35.85°N, 109.83°WCephalopod Limestone — 10.30°S, 123.71°EKapp Toscana — 74.42°N, 19.16°EDogger — 54.41°N, 0.87°WDogger — 54.42°N, 0.83°WDogger — 54.50°N, 0.69°WProvidence — 31.84°N, 85.22°WProvidence — 31.75°N, 85.12°WCorsicana Marl — 29.59°N, 98.04°WCorsicana Marl — 31.30°N, 96.90°WNacatoch Sand — 32.59°N, 96.31°WNacatoch Sand — 32.10°N, 96.47°Wopoka — 51.32°N, 21.95°Eopoka — 51.13°N, 21.77°EDinwoody — 44.76°N, 112.30°WDinwoody — 43.63°N, 110.56°WDinwoody — 42.70°N, 108.56°WZechstein — 50.98°N, 12.43°EZechstein — 50.92°N, 12.45°EZechstein — 50.88°N, 12.34°ERaibl — 47.75°N, 12.74°ERaibl — 47.41°N, 11.06°E

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The named rock units Gervillia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 131 further formations hold fewer occurrences each and are not listed. 168 occurrences have no formation on record, which is common for older literature.

Gervillia and its relatives

Late Triassic

Where Gervillia and its relatives were recorded in the Late Triassic.

Found in the same rock

2,559 taxa

The Paleobiology Database records 418 sites for Gervillia, 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

186 references

Each of the 537 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. 174 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 content2

Picture of Gervillia

Credit
Hectonichus
Licence
CC BY-SA 3.0
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

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 itBakevelliidae through timeFormations of the Late TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Defrance 1820