Nepomorpha

Nepomorpha is an infraorder of insects in the "true bug" order (Hemiptera). They belong to the "typical" bugs of the suborder Heteroptera. Due to their aquatic habits, these animals are known as true water bugs. They occur all over the world outside the polar regions, with about 2,000 species altogether. The Nepomorpha can be distinguished from related Heteroptera by their missing or vestigial ocelli. Also, as referred to by the obsolete name Cryptocerata, their antennae are reduced, with weak muscles, and usually carried tucked against the head.

Nepomorpha

Uncredited · 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
HeteropteraPBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At least 245 million years on record.

The record covers at least 245.19 Mya to 11.7 ka. No occurrence read is dated outside 247 Mya to 0 Mya.

Early Triassic — about 0 of 417 occurrencesMiddle Triassic — about 2 of 417 occurrencesLate Triassic — about 15 of 417 occurrencesLate TriassicEarly Jurassic — about 26 of 417 occurrencesEarly JurassicMiddle Jurassic — about 14 of 417 occurrencesLate Jurassic — about 79 of 417 occurrencesEarly Cretaceous — about 143 of 417 occurrencesEarly CretaceousLate Cretaceous — about 24 of 417 occurrencesLate CretaceousPaleocene — about 1 of 417 occurrencesEocene — about 17 of 417 occurrencesEoceneOligocene — about 39 of 417 occurrencesMiocene — about 40 of 417 occurrencesPliocene — about 4 of 417 occurrencesPleistocene — about 8 of 417 occurrences252–244 Mya — about 2 occurrences244–235 Mya — about 1.0 occurrences235–227 Mya — about 4 occurrences227–218 Mya — about 4 occurrences218–210 Mya — about 4 occurrences210–202 Mya — about 2 occurrences202–193 Mya — about 9 occurrences193–185 Mya — about 2 occurrences185–176 Mya — about 14 occurrences176–168 Mya — about 5 occurrences168–160 Mya — about 12 occurrences160–151 Mya — about 16 occurrences151–143 Mya — about 61 occurrences143–134 Mya — about 3 occurrences134–126 Mya — about 4 occurrences126–118 Mya — about 74 occurrences118–109 Mya — about 62 occurrences101–92 Mya — about 20 occurrences92–84 Mya — about 3 occurrences76–67 Mya — about 0.8 occurrences67–59 Mya — about 0.8 occurrences59–50 Mya — about 1 occurrence50–42 Mya — about 1 occurrence42–34 Mya — about 16 occurrences34–25 Mya — about 22 occurrences25–17 Mya — about 38 occurrences17–8.4 Mya — about 11 occurrences8.4–0 Mya — about 24 occurrences245.19 Mya11.7 ka252 Mya0 Mya

417 occurrences of Nepomorpha on record, most of them in the Early Cretaceous. 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

417 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

79 formations

Gurvan-Eren — 48.07°N, 91.65°EGurvan-Eren — 46.38°N, 93.95°EGurvan-Eren — 46.30°N, 93.90°EGurvan-Eren — 46.30°N, 93.80°EGurvan-Eren — 46.99°N, 95.46°EGurvan-Eren — 48.45°N, 92.27°ESolnhofen — 48.91°N, 11.14°ERott — 50.75°N, 7.26°ERott — 50.60°N, 7.25°ERott — 50.75°N, 7.26°ECrato — 7.13°S, 39.70°WKarabastau — 42.69°N, 70.41°EKarabastau — 42.90°N, 70.00°EYixian — 41.62°N, 120.83°EYixian — 41.53°N, 121.10°EYixian — 42.74°N, 125.37°EYixian — 41.19°N, 119.21°EZaza — 53.30°N, 112.09°EShanwang — 36.55°N, 118.71°EUlaan-Ereg — 45.59°N, 107.79°ELaiyang — 36.78°N, 120.67°ELaiyang — 37.03°N, 120.79°ESharteg — 44.13°N, 95.77°EFlorissant — 38.92°N, 105.28°WAnda-Khuduk — 45.39°N, 101.84°ELa Huérguina — 40.06°N, 1.88°WLa Huérguina — 40.13°N, 2.01°WBlackstone — 27.62°S, 152.75°ECharmouth Mudstone — 50.73°N, 2.92°WJiulongshan — 40.96°N, 117.61°EJiulongshan — 40.91°N, 118.32°EUpper Freshwater-Molasse — 47.67°N, 8.93°ECheremkhovskaya — 54.17°N, 100.31°ETremembé — 22.95°S, 45.54°WPosidonia Shale — 52.31°N, 10.62°EPosidonia Shale — 52.27°N, 10.68°EHaifanggou — 41.83°N, 120.78°EBakhar — 45.22°N, 99.17°ELa Cantera — 32.99°S, 66.88°W

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The named rock units Nepomorpha has been recovered from, largest first. Drawn where the rock is now, not where it formed. 55 further formations hold fewer occurrences each and are not listed. 89 occurrences have no formation on record, which is common for older literature.

Nepomorpha and its relatives

Early Cretaceous

Where Nepomorpha and its relatives were recorded in the Early Cretaceous.

Found in the same rock

5,646 taxa

The Paleobiology Database records 268 sites for Nepomorpha, and this reads 240 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

138 references

Each of the 417 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. 126 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 Nepomorpha

Credit
nobody named on the record
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Nepomorpha 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 itHeteroptera through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Popov 1971