Bembidion

Bembidion is the largest genus of beetles in the family Carabidae by number of species. All species are small and move very fast. Most of them live close to water. The genus has a biantitropical distribution, meaning they are found in both the Northern and Southern Hemispheres, but not in the tropics. In warmer regions it is substituted by closely related Tachys and other genera.

Bembidion

Siga · 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
BembidiiniPBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At least 33 million years on record.

The record covers at least 33.9 Mya to 11.7 ka. No occurrence read is dated outside 37.71 Mya to 0 Mya.

Eocene — about 3 of 216 occurrencesEoceneOligocene — about 0 of 216 occurrencesMiocene — about 14 of 216 occurrencesMiocenePliocene — about 0 of 216 occurrencesPleistocene — about 197 of 216 occurrences38–37 Mya — about 0.4 occurrences37–36 Mya — about 1 occurrence36–35 Mya — about 1 occurrence35–33 Mya — about 0.6 occurrences21–19 Mya — about 1 occurrence19–18 Mya — about 1 occurrence18–17 Mya — about 1 occurrence17–15 Mya — about 0.6 occurrences13–12 Mya — about 0.1 occurrences12–10 Mya — about 1 occurrence10–9.0 Mya — about 1 occurrence9.0–7.7 Mya — about 1 occurrence7.7–6.4 Mya — about 3 occurrences6.4–5.1 Mya — about 3 occurrences3.8–2.6 Mya — about 1 occurrence2.6–1.3 Mya — about 62 occurrences1.3–0 Mya — about 136 occurrences33.9 Mya11.7 ka38.5 Mya0 Mya

216 occurrences of Bembidion 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

216 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

14 formations

Kap København — 82.47°N, 23.66°WKap København — 82.45°N, 24.10°WKap København — 82.32°N, 23.85°WKap København — 82.35°N, 24.05°WHighbury Silts and Sands — 51.56°N, 0.06°WTitusville Till — 41.62°N, 79.64°WOlympia beds — 47.66°N, 122.43°WEdoma — 69.50°N, 158.50°EImuruk Volcanics — 65.88°N, 163.13°WShanwang — 36.55°N, 118.71°EOler — 69.50°N, 158.50°EKeremesit — 69.50°N, 158.50°EKeremesit — 69.17°N, 158.12°ENogami — 33.21°N, 131.15°ESaijo — 34.38°N, 132.72°EQuadra Sand — 49.29°N, 122.88°WScarborough — 43.70°N, 79.24°WTsumori — 32.79°N, 130.86°E

Loading coastlines…

The named rock units Bembidion has been recovered from, largest first. Drawn where the rock is now, not where it formed. 72 occurrences have no formation on record, which is common for older literature.

Bembidion and its relatives

Pleistocene

Where Bembidion and its relatives were recorded in the Pleistocene.

Found in the same rock

1,489 taxa

The Paleobiology Database records 91 sites for Bembidion, 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

27 references

Each of the 216 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. 15 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 Bembidion

Credit
Siga
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

Photogrammetry

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Bembidion Bembidion compactum · ETHZ:ENT:0577233

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 itBembidiini through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Latreille 1802