Pleurotomariidae

Pleurotomariidae, common name the "slit snails", is a family of large marine gastropods in the superfamily Pleurotomarioidea of the subclass Vetigastropoda. This family is a very ancient lineage; there were numerous species in the geological past. The genus includes several hundred fossil forms, mostly Paleozoic. It is one of the oldest gastropod families, commencing in the Cambrian.

Pleurotomariidae

Ryan Somma · CC BY-SA 2.0 · 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
PleurotomarioideaPBDB
Diet
carnivorePBDB
Life habit
epifaunalPBDB
Motility
actively mobilePBDB
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 447 million years on record.

The record covers at least 450.1 Mya to 2.58 Mya. No occurrence read is dated outside 459.7 Mya to 774 ka.

Ordovician — about 2 of 873 occurrencesSilurian — about 0 of 873 occurrencesDevonian — about 7 of 873 occurrencesDevonianCarboniferous — about 10 of 873 occurrencesCarboniferousPermian — about 63 of 873 occurrencesPermianEarly Triassic — about 4 of 873 occurrencesMiddle Triassic — about 43 of 873 occurrencesLate Triassic — about 118 of 873 occurrencesEarly Jurassic — about 169 of 873 occurrencesMiddle Jurassic — about 94 of 873 occurrencesLate Jurassic — about 106 of 873 occurrencesEarly Cretaceous — about 127 of 873 occurrencesEarly CretaceousLate Cretaceous — about 57 of 873 occurrencesPaleocene — about 19 of 873 occurrencesEocene — about 34 of 873 occurrencesOligocene — about 12 of 873 occurrencesMiocene — about 6 of 873 occurrencesPliocene — about 1 of 873 occurrencesPleistocene — about 1 of 873 occurrences469–453 Mya — about 1 occurrence453–438 Mya — about 0.7 occurrences422–406 Mya — about 0.8 occurrences406–391 Mya — about 1 occurrence391–375 Mya — about 4 occurrences375–359 Mya — about 1 occurrence359–344 Mya — about 4 occurrences344–328 Mya — about 2 occurrences328–313 Mya — about 2 occurrences313–297 Mya — about 4 occurrences297–281 Mya — about 11 occurrences281–266 Mya — about 15 occurrences266–250 Mya — about 37 occurrences250–234 Mya — about 58 occurrences234–219 Mya — about 51 occurrences219–203 Mya — about 45 occurrences203–188 Mya — about 130 occurrences188–172 Mya — about 56 occurrences172–156 Mya — about 140 occurrences156–141 Mya — about 54 occurrences141–125 Mya — about 51 occurrences125–109 Mya — about 50 occurrences109–94 Mya — about 42 occurrences94–78 Mya — about 24 occurrences78–63 Mya — about 27 occurrences63–47 Mya — about 20 occurrences47–31 Mya — about 23 occurrences31–16 Mya — about 13 occurrences16–0 Mya — about 5 occurrences450.1 Mya2.58 Mya469 Mya0 Mya

873 occurrences of Pleurotomariidae on record, most of them in the Early Jurassic. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

873 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

200 formations

Chari — 23.50°N, 70.50°EChari — 23.67°N, 69.00°EChari — 23.48°N, 69.37°EChari — 23.38°N, 69.13°ETrigonia clavellata — 50.80°N, 2.28°WTrigonia clavellata — 50.60°N, 2.45°WHierlatz Limestone — 47.25°N, 17.77°EHierlatz Limestone — 47.20°N, 17.87°EIsztimér Limestone — 47.18°N, 17.88°EIsztimér Limestone — 46.98°N, 17.30°ECassian — 46.57°N, 11.94°ECassian — 46.55°N, 11.93°ELuxembourg Sandstone — 49.74°N, 6.05°ELuxembourg Sandstone — 49.49°N, 6.33°ELuxembourg Sandstone — 49.56°N, 6.17°ELuxembourg Sandstone — 49.63°N, 6.01°EOkarahia Sandstone — 42.57°S, 173.52°EKieselkalk — 47.42°N, 9.90°EPerte du Rhône — 46.83°N, 6.52°ECastle Hayne — 34.64°N, 77.65°WCastle Hayne — 34.23°N, 77.94°WOpoka — 51.33°N, 21.97°EOpoka — 51.00°N, 21.00°EOpoka — 51.13°N, 21.77°EWargal — 32.47°N, 71.97°EWargal — 32.55°N, 71.77°EWargal — 32.63°N, 71.75°EWargal — 32.78°N, 71.58°EOsmington Oolite — 50.80°N, 2.28°WOsmington Oolite — 50.60°N, 2.45°WDhruma — 23.08°N, 46.33°EDhruma — 22.62°N, 46.00°EDhruma — 22.53°N, 46.17°EDhruma — 23.97°N, 46.17°EDhruma — 26.92°N, 44.00°EGrès verts helvétiques — 46.09°N, 6.76°EGrès verts helvétiques — 45.90°N, 6.34°EGrès verts helvétiques — 46.04°N, 6.62°EGrès verts helvétiques — 45.98°N, 6.78°ECapitan — 31.87°N, 104.90°WIsztimér — 47.20°N, 17.89°EIsztimér — 47.28°N, 17.84°EChhidru — 32.47°N, 71.97°EChhidru — 32.47°N, 71.95°EChhidru — 32.48°N, 71.85°EChhidru — 32.60°N, 71.82°EChhidru — 32.40°N, 72.10°EManiyara Fort — 23.46°N, 68.60°EManiyara Fort — 23.45°N, 68.67°EManiyara Fort — 23.45°N, 68.67°EVuache — 46.83°N, 6.52°ESobral — 64.25°S, 56.75°WBlue Lias — 50.00°N, 2.00°WBlue Lias — 51.00°N, 3.00°WGarschella — 47.42°N, 9.90°EHierlatz — 47.19°N, 17.87°E

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The named rock units Pleurotomariidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 176 further formations hold fewer occurrences each and are not listed. 394 occurrences have no formation on record, which is common for older literature.

Pleurotomariidae and its relatives

Early Jurassic

Where Pleurotomariidae and its relatives were recorded in the Early Jurassic.

Found in the same rock

2,574 taxa

The Paleobiology Database records 610 sites for Pleurotomariidae, and this reads 240 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

252 references

Each of the 873 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. 240 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 Pleurotomariidae

Credit
Ryan Somma
Licence
CC BY-SA 2.0
Commercial use
the licence allows it

No 3D scan of Pleurotomariidae 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 itPleurotomarioidea through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Swainson 1840