Campeloma

Campeloma is a genus of gilled operculate freshwater snails in the family Viviparidae.

Campeloma

W. H. Dall (1845-1927) · Public Domain · 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
LioplacinaePBDB
Diet
omnivorePBDB, for Viviparidae
Life habit
epifaunalPBDB, for Viviparidae
Motility
actively mobilePBDB, for Viviparidae
Vision
limitedPBDB, for Gastropoda
Environment
freshwaterPBDB, for Viviparidae

Time the record covers

At least 113 million years on record.

The record covers at least 113.2 Mya to 11.7 ka. No occurrence read is dated outside 121.4 Mya to 0 Mya.

Early Cretaceous — about 2 of 21 occurrencesEarly CretaceousLate Cretaceous — about 9 of 21 occurrencesLate CretaceousPaleocene — about 9 of 21 occurrencesEocene — about 0 of 21 occurrencesOligocene — about 0 of 21 occurrencesMiocene — about 0 of 21 occurrencesPliocene — about 0 of 21 occurrencesPleistocene — about 0 of 21 occurrences124–120 Mya — about 0.3 occurrences120–116 Mya — about 0.7 occurrences116–111 Mya — about 0.5 occurrences111–107 Mya — about 0.2 occurrences107–103 Mya — about 0.2 occurrences103–99 Mya — about 0.1 occurrences87–83 Mya — about 0.3 occurrences83–78 Mya — about 1 occurrence78–74 Mya — about 1 occurrence74–70 Mya — about 3 occurrences70–66 Mya — about 4 occurrences66–62 Mya — about 4 occurrences62–58 Mya — about 3 occurrences58–54 Mya — about 1 occurrence4.1–0 Mya — about 1 occurrence113.2 Mya11.7 ka124 Mya0 Mya

21 occurrences of Campeloma on record, most of them in the Late Cretaceous. 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

21 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

6 formations

Ravenscrag — 49.70°N, 109.00°WRavenscrag — 49.57°N, 108.81°WRavenscrag — 49.40°N, 105.63°WRavenscrag — 49.13°N, 104.88°WRavenscrag — 49.70°N, 110.50°WRavenscrag — 49.51°N, 109.02°WHell Creek — 45.53°N, 101.63°WHell Creek — 46.90°N, 101.50°WHell Creek — 46.24°N, 107.38°WHell Creek — 47.57°N, 106.95°WShahai — 41.81°N, 121.99°EWahweap — 37.60°N, 111.60°WWahweap — 37.36°N, 111.56°WTwo Medicine — 48.63°N, 113.75°WLance — 41.57°N, 108.67°W

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The named rock units Campeloma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Campeloma and its relatives

Late Cretaceous

Where Campeloma and its relatives were recorded in the Late Cretaceous.

Found in the same rock

224 taxa

The Paleobiology Database records 20 sites for Campeloma, and this reads all 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

12 references

Each of the 21 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. 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 Campeloma

Credit
W. H. Dall (1845-1927)
Licence
Public Domain
Commercial use
the licence allows it

Laser scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Campeloma nebrascensis · YPM:IP:YPM IP 538094

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 itLioplacinae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Rafinesque 1819