Helophorus

Helophorus is the only genus in the beetle family Helophoridae within the Hydrophiloidea. They are small insects, found mainly in the Holarctic region, but two or three species also live in the Afrotropical region, Central America and one in the Indomalayan region.

Helophorus

Entomart · Attribution · 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
HelophoridaePBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At least 142 million years on record.

The record covers at least 143.1 Mya to 129 ka. No occurrence read is dated outside 149.2 Mya to 11.7 ka.

Late Jurassic — about 14 of 108 occurrencesEarly Cretaceous — about 7 of 108 occurrencesEarly CretaceousLate Cretaceous — about 0 of 108 occurrencesPaleocene — about 0 of 108 occurrencesEocene — about 0 of 108 occurrencesOligocene — about 0 of 108 occurrencesMiocene — about 3 of 108 occurrencesMiocenePliocene — about 0 of 108 occurrencesPleistocene — about 84 of 108 occurrences152–147 Mya — about 5 occurrences147–142 Mya — about 9 occurrences137–132 Mya — about 0.1 occurrences132–127 Mya — about 0.7 occurrences127–122 Mya — about 3 occurrences122–117 Mya — about 2 occurrences117–112 Mya — about 0.8 occurrences25–20 Mya — about 0.4 occurrences20–15 Mya — about 0.6 occurrences15–10 Mya — about 0.2 occurrences10–5.1 Mya — about 2 occurrences5.1–0 Mya — about 84 occurrences143.1 Mya129 ka152 Mya0 Mya

108 occurrences of Helophorus 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

108 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

19 formations

Titusville Till — 41.62°N, 79.64°WHighbury Silts and Sands — 51.56°N, 0.06°WSharteg — 44.14°N, 95.77°EKap København — 82.47°N, 23.66°WKap København — 82.45°N, 24.10°WGlushkovo — 51.71°N, 116.93°EGlushkovo — 51.92°N, 117.62°EGlushkovo — 51.65°N, 117.41°EGlushkovo — 52.00°N, 116.00°EKeremesit — 69.50°N, 158.50°EKeremesit — 69.17°N, 158.12°EZaza — 53.30°N, 112.09°EYixian — 41.62°N, 120.83°EOlympia beds — 47.66°N, 122.43°WOmbinsk — 56.12°N, 74.69°EImuruk Volcanics — 65.88°N, 163.13°WUkurei — 52.31°N, 117.04°EUstkarskaya — 52.71°N, 118.78°ETurga — 51.92°N, 118.86°EByankino — 50.76°N, 115.66°ETergen — 51.74°N, 117.36°ELeskovskaya — 51.70°N, 116.93°EOler — 69.50°N, 158.50°EQuadra Sand — 49.23°N, 122.78°W

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The named rock units Helophorus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 50 occurrences have no formation on record, which is common for older literature.

Helophorus and its relatives

Pleistocene

Where Helophorus and its relatives were recorded in the Pleistocene.

Found in the same rock

1,656 taxa

The Paleobiology Database records 74 sites for Helophorus, 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

22 references

Each of the 108 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. 10 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 Helophorus

Credit
Entomart
Licence
Attribution
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Helophorus was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itHelophoridae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Fabricius 1775