Gerrinae

Gerrinae is a subfamily of water striders consists of thirteen extant genera in two tribes and three fossil genera. The subfamily includes some of the best-known species of Gerridae and the largest species, Gigantometra gigas.

Gerrinae

Hans Hillewaert · CC BY-SA 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
GerridaePBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At least 50 million years on record.

The record covers at least 51.1 Mya to 129 ka. No occurrence read is dated outside 56 Mya to 11.7 ka.

Paleocene — about 0 of 43 occurrencesEocene — about 38 of 43 occurrencesEoceneOligocene — about 2 of 43 occurrencesOligoceneMiocene — about 2 of 43 occurrencesMiocenePliocene — about 0 of 43 occurrencesPleistocene — about 1 of 43 occurrences57–55 Mya — about 3 occurrences55–53 Mya — about 6 occurrences53–51 Mya — about 6 occurrences51–50 Mya — about 6 occurrences50–48 Mya — about 5 occurrences48–46 Mya — about 0.9 occurrences46–44 Mya — about 0.5 occurrences44–42 Mya — about 0.5 occurrences42–40 Mya — about 0.2 occurrences38–36 Mya — about 4 occurrences36–34 Mya — about 4 occurrences34–32 Mya — about 1 occurrence32–30 Mya — about 0.3 occurrences30–29 Mya — about 0.3 occurrences29–27 Mya — about 0.3 occurrences27–25 Mya — about 0.4 occurrences25–23 Mya — about 0.4 occurrences17–15 Mya — about 0.2 occurrences15–13 Mya — about 0.6 occurrences13–11 Mya — about 0.6 occurrences11–9.5 Mya — about 0.2 occurrences9.5–7.6 Mya — about 0.2 occurrences7.6–5.7 Mya — about 0.2 occurrences5.7–3.8 Mya — about 0.0 occurrences1.9–0 Mya — about 1 occurrence51.1 Mya129 ka57 Mya0 Mya

43 occurrences of Gerrinae 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

43 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

12 formations

Fur — 56.92°N, 8.92°EFur — 56.89°N, 8.67°EFur — 56.95°N, 8.88°EFur — 56.90°N, 8.79°EØlst — 56.84°N, 9.00°ENiubao — 32.02°N, 89.77°ENiubao — 31.80°N, 87.76°EGreen River — 41.82°N, 110.76°WGreen River — 42.13°N, 110.13°WEifel — 50.11°N, 6.82°ETranquille — 50.13°N, 120.51°WAllenby — 49.45°N, 120.59°WNove Sedlo — 50.63°N, 14.16°ERott — 50.75°N, 7.26°EOlympia beds — 47.66°N, 122.43°WBouldnor — 50.74°N, 1.36°WMae Sot — 19.29°N, 99.63°E

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The named rock units Gerrinae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 10 occurrences have no formation on record, which is common for older literature.

Gerrinae and its relatives

Eocene

Where Gerrinae and its relatives were recorded in the Eocene.

Found in the same rock

1,474 taxa

The Paleobiology Database records 36 sites for Gerrinae, 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

15 references

Each of the 43 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. 3 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 Gerrinae

Credit
Hans Hillewaert
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Gerrinae 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 itGerridae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Leach 1815)