Insecta
Insects are invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have an exoskeleton, a three-part body, three pairs of jointed legs, compound eyes, and a pair of antennae. Insects are the most diverse group of animals, with more than a million described species; they represent more than half of all animal species.

Chiswick Chap · 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- Also called
- insectPBDB
- Sits inside
- CercofilataPBDB
- Motility
- actively mobilePBDB, for Arthropoda
- Environment
- terrestrialPBDB
Time the record covers
At least 323 million years on record.
The record covers at least 323.6 Mya to 11.7 ka. No occurrence read is dated outside 326.9 Mya to 0 Mya.
12,000+ occurrences of Insecta on record. 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
12,000 occurrences read- Carboniferous5%
- Permian16%
- Early Triassicunder 1%
- Middle Triassic4%
- Late Triassic4%
- Early Jurassic8%
- Middle Jurassic1%
- Late Jurassic9%
- Early Cretaceous12%
- Late Cretaceous6%
- Paleocene2%
- Eocene17%
- Oligocene7%
- Miocene8%
- Plioceneunder 1%
- Pleistoceneunder 1%
- Holoceneunder 1%
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. The read hit its cap, so every figure above is a floor and the shares are of the occurrences read. More on what this infers.
Found in
at least 426 formations
- Karabastau Formation591
- Wellington Formation · Sumner Group534
- Florissant Formation520
- Posidonia Shale Formation464
- Madygen Formation374
- Green River Formation308
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The named rock units Insecta has been recovered from, largest first. Drawn where the rock is now, not where it formed. The read hit its cap, so each count is a floor. 402 further formations hold fewer occurrences each and are not listed. 2,589 occurrences have no formation on record, which is common for older literature.
Found in the same rock
6,606 taxa- Coleoptera23 sites
- Buratina19 sites
- Aves10 sites
- Bivalvia10 sites
- Gastropoda10 sites
- Osteichthyes10 sites
- Serpula9 sites
- Anura8 sites
- Theropoda8 sites
- Archirhyphus asiaticus7 sites
- Berenicea7 sites
- Blattodea7 sites
- Buratina lusitanica7 sites
- Cribrospongia7 sites
- Plantae7 sites
- Brachiopoda6 sites
- Crania6 sites
- Craticularia6 sites
- Cribrospongia reticulata6 sites
- Crocodylia6 sites
- Cypellia rugosa6 sites
- Diptera6 sites
- Kararhynchus occiduus6 sites
- Liostrea6 sites
The Paleobiology Database records at least 533 sites for Insecta, and this reads 240 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
at least 1,903 references- Les insectes fossiles des terrains oligocènes de France527
- Die Insektenfauna des Ostniedersachsischen Oberen Lias448
- The Tertiary Insects of North America434
- Mezozoiskie zhestkokryiye164
- Heer, 1853159
- Die Insekten der "Plattigen Steinmergels" von Brunstatt153
- Hymenoptera Apocrita of Mesozoic148
- Heer, 1847131
- Die Trichopteren des baltischen Bernsteins122
- Heer, 1849121
- Filogeniya ortopteroidnykh nasekomykh115
- Piton, 1940104
Each of the 12,000 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. That read hit its cap, so each count is a floor. 1,891 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 Insecta
- Source
- Wikipedia/Commons
- Credit
- Chiswick Chap
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Source
- Wikipedia, “Insect”
- 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 itCercofilata through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Linnaeus 1758)