Brentidae

Brentidae is a cosmopolitan family of primarily xylophagous beetles also known as straight-snouted weevils; they have sometimes been called "primitive weevils", but this name also applies to taxa such as the Belidae. The concept of this family has been expanded with the inclusion of three groups formerly placed in the Curculionidae; the subfamilies Apioninae, Cyladinae, and Nanophyinae, as well as the Ithycerinae, previously considered a separate family. They are most diverse in the tropics, but occur throughout the temperate regions of the world. They are among the families of weevils that have non-elbowed antennae, and tend to be elongate and flattened, though there are numerous exceptions.

Brentidae

Desmond W. Helmore · 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
CurculionoideaPBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At least 149 million years on record.

The record covers at least 149.2 Mya to 11.7 ka. No occurrence read is dated outside 154.8 Mya to 0 Mya.

Late Jurassic — about 2 of 143 occurrencesLate JurassicEarly Cretaceous — about 4 of 143 occurrencesEarly CretaceousLate Cretaceous — about 4 of 143 occurrencesLate CretaceousPaleocene — about 2 of 143 occurrencesEocene — about 62 of 143 occurrencesEoceneOligocene — about 12 of 143 occurrencesMiocene — about 26 of 143 occurrencesMiocenePliocene — about 0 of 143 occurrencesPleistocene — about 28 of 143 occurrences158–153 Mya — about 0.8 occurrences153–147 Mya — about 1 occurrence126–121 Mya — about 0.1 occurrences121–116 Mya — about 3 occurrences116–111 Mya — about 1 occurrence95–89 Mya — about 4 occurrences63–58 Mya — about 2 occurrences58–53 Mya — about 2 occurrences53–47 Mya — about 6 occurrences47–42 Mya — about 11 occurrences42–37 Mya — about 8 occurrences37–32 Mya — about 38 occurrences32–26 Mya — about 6 occurrences26–21 Mya — about 4 occurrences21–16 Mya — about 16 occurrences16–11 Mya — about 9 occurrences5.3–0 Mya — about 31 occurrences149.2 Mya11.7 ka158 Mya0 Mya

143 occurrences of Brentidae on record, most of them in the Eocene. 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

143 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

25 formations

Florissant — 38.92°N, 105.28°WFlorissant — 38.93°N, 105.24°WEifel — 50.11°N, 6.82°EHighbury Silts and Sands — 51.56°N, 0.06°WUpper Freshwater-Molasse — 47.67°N, 8.93°EShanwang — 36.55°N, 118.71°ERott — 50.75°N, 7.26°EGreen River — 39.46°N, 108.41°WGreen River — 39.53°N, 107.95°WShar-Tolgoy — 46.10°N, 100.68°EKarabastau — 42.90°N, 70.00°EMenat — 46.10°N, 2.90°EKlondike Mountain — 48.66°N, 118.75°WNiveau du gypse d'Aix — 43.52°N, 5.45°EKeremesit — 69.50°N, 158.50°EKeremesit — 69.17°N, 158.12°EOlympia beds — 47.66°N, 122.43°WZaza — 53.30°N, 112.09°ECrato — 7.13°S, 39.70°WSalt — 47.69°N, 7.53°ELa Toca — 19.22°N, 70.67°WTitusville Till — 41.62°N, 79.64°WMessel — 49.93°N, 8.75°EQuadra Sand — 49.29°N, 122.88°WArgiles d'lignite du Soissonnais — 49.33°N, 2.66°ETadushi — 44.26°N, 135.30°EDunstan — 45.08°S, 169.17°E

Loading coastlines…

The named rock units Brentidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. One further formation holds fewer occurrences and is not listed. 64 occurrences have no formation on record, which is common for older literature.

Brentidae and its relatives

Eocene

Where Brentidae and its relatives were recorded in the Eocene.

Found in the same rock

3,986 taxa

The Paleobiology Database records 87 sites for Brentidae, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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

57 references

Each of the 143 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. 45 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 Brentidae

Credit
Desmond W. Helmore
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Brentidae 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 itCurculionoidea through timeFormations of the EoceneThe world it lived on

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