Dryopidae

Dryopidae is a family of beetles, commonly named long-toed water beetles, in the superfamily Byrrhoidea. It was described by Gustaf Johan Billberg in 1820.

Dryopidae

S.E. Thorpe · 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
Also called
long toed water beetlePBDB
Sits inside
DryopoideaPBDB
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 129 ka. No occurrence read is dated outside 37 Mya to 11.7 ka.

Eocene — about 4 of 31 occurrencesEoceneOligocene — about 1 of 31 occurrencesOligoceneMiocene — about 1 of 31 occurrencesMiocenePliocene — about 0 of 31 occurrencesPleistocene — about 25 of 31 occurrences38–36 Mya — about 0.7 occurrences36–35 Mya — about 2 occurrences35–34 Mya — about 2 occurrences34–33 Mya — about 0.1 occurrences28–26 Mya — about 0.2 occurrences26–25 Mya — about 0.3 occurrences25–24 Mya — about 0.3 occurrences24–23 Mya — about 0.2 occurrences16–15 Mya — about 0.4 occurrences15–14 Mya — about 0.6 occurrences14–13 Mya — about 0.0 occurrences3.8–2.5 Mya — about 0.1 occurrences2.5–1.3 Mya — about 0.9 occurrences1.3–0 Mya — about 24 occurrences33.9 Mya129 ka37.7 Mya0 Mya

31 occurrences of Dryopidae 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

31 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

3 formations

Highbury Silts and Sands — 51.56°N, 0.06°WFlorissant — 38.92°N, 105.28°WRandeck Maar — 48.57°N, 9.53°E

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The named rock units Dryopidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 14 occurrences have no formation on record, which is common for older literature.

Dryopidae and its relatives

Pleistocene

Where Dryopidae and its relatives were recorded in the Pleistocene.

Found in the same rock

739 taxa

The Paleobiology Database records 24 sites for Dryopidae, 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 31 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 content1

Picture of Dryopidae

Credit
S.E. Thorpe
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Dryopidae 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 itDryopoidea through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Billberg 1820