Brachystomia

Brachystomia is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.

Brachystomia

Natural History Museum, Rotterdam · 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
PyramidellidaePBDB
Diet
carnivorePBDB, for Pyramidellidae
Life habit
epifaunalPBDB, for Pyramidellidae
Motility
actively mobilePBDB, for Pyramidellidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 47 million years on record.

The record covers at least 48.07 Mya to 129 ka. No occurrence read is dated outside 56 Mya to 11.7 ka.

Paleocene — about 0 of 35 occurrencesEocene — about 7 of 35 occurrencesEoceneOligocene — about 1 of 35 occurrencesOligoceneMiocene — about 5 of 35 occurrencesMiocenePliocene — about 5 of 35 occurrencesPleistocene — about 17 of 35 occurrences57–55 Mya — about 0.1 occurrences55–53 Mya — about 0.2 occurrences53–51 Mya — about 0.2 occurrences51–50 Mya — about 0.2 occurrences50–48 Mya — about 0.6 occurrences48–46 Mya — about 2 occurrences46–44 Mya — about 2 occurrences44–42 Mya — about 2 occurrences42–40 Mya — about 0.7 occurrences29–27 Mya — about 0.2 occurrences27–25 Mya — about 0.4 occurrences25–23 Mya — about 0.6 occurrences23–21 Mya — about 2 occurrences21–19 Mya — about 0.6 occurrences13–11 Mya — about 0.1 occurrences11–9.5 Mya — about 0.7 occurrences9.5–7.6 Mya — about 0.7 occurrences7.6–5.7 Mya — about 0.4 occurrences5.7–3.8 Mya — about 0.1 occurrences3.8–1.9 Mya — about 5 occurrences1.9–0 Mya — about 17 occurrences48.07 Mya129 ka57 Mya0 Mya

35 occurrences of Brachystomia on record, most of them in the Pleistocene. 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

35 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

13 formations

San Pedro Sand — 33.74°N, 118.28°WPalos Verdes Sand — 33.99°N, 118.45°WPalos Verdes Sand — 33.60°N, 117.88°WPalos Verdes Sand — 33.74°N, 118.28°WSelsey — 50.73°N, 0.78°WFalun de Saucats — 44.66°N, 0.57°WLillo — 51.27°N, 4.30°EEarnley — 51.08°N, 1.17°WFernando — 34.05°N, 118.25°WFernando — 34.05°N, 118.26°WLondon Clay — 50.89°N, 1.28°WMoin — 9.99°N, 83.04°WSwan Cay — 9.45°N, 82.30°WGram — 55.28°N, 9.00°EBranden Clay — 56.80°N, 9.04°EPalos Verdes — 33.63°N, 117.90°W

Loading coastlines…

The named rock units Brachystomia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Brachystomia and its relatives

Pleistocene

Where Brachystomia and its relatives were recorded in the Pleistocene.

Found in the same rock

1,544 taxa

The Paleobiology Database records 19 sites for Brachystomia, 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

19 references

Each of the 35 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. 7 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 Brachystomia

Credit
Natural History Museum, Rotterdam
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Brachystomia 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 itPyramidellidae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Monterosato 1884