Georissus
Georissus, also called minute mud-loving beetles, is the only genus in the beetle family Georissidae. They are tiny insects living in wet soil, often near water. They are found on every continent except Antarctica.
Udo Schmidt from Deutschland · CC BY-SA 2.0 · 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
- GeorissinaePBDB
- Motility
- actively mobilePBDB, for Arthropoda
- Environment
- terrestrialPBDB, for Insecta
Time the record covers
At least 5.2 million years on record.
The record covers at least 5.333 Mya to 129 ka. No occurrence read is dated outside 7.246 Mya to 11.7 ka.
8 occurrences of Georissus 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
8 occurrences- Miocene13%
- Pliocene13%
- Pleistocene75%
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
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The named rock units Georissus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Georissus and its relatives
PleistoceneWhere Georissus and its relatives were recorded in the Pleistocene.
Found in the same rock
573 taxa- Helophorus5 sites
- Stenus5 sites
- Aphodius4 sites
- Bembidion (Metallina) lampros4 sites
- Dyschiriodes globosus4 sites
- Phyllobius4 sites
- Sitona4 sites
- Aleocharinae3 sites
- Anotylus rugosus3 sites
- Bagous3 sites
- Bembidion (Trepanedoris) doris3 sites
- Bledius3 sites
- Bryaxis3 sites
- Byrrhus3 sites
- Carpelimus3 sites
- Cercyon3 sites
- Esolus parallelepipedus3 sites
- Helodidae3 sites
- Hydraena3 sites
- Hylesinus toranio3 sites
- Ilybius3 sites
- Limnichus pygmaeus3 sites
- Limnius volckmari3 sites
- Macronychus quadrituberculatus3 sites
The Paleobiology Database records 8 sites for Georissus, 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
6 references- Marine Isotope Stage 9 environments of fluvial deposits at Hackney, north London, UK3
- The paleoenvironment of the Olympia beds based on fossil beetles from Discovery Park, Seattle, Washington, U.S.A.1
- Stratigraphy, fossils, and age of sediments at the upper pit of the Lost Chicken gold mine: new information on the late Pliocene environment of east central Alaska1
- A Pliocene flora and insect fauna from the Bering Strait region1
- A Late Pleistocene fauna and flora from Upton Warren, Worcestershire1
- Note Complémentaire sur les insectes fossiles des Cinérites Pliocènes du Lac Chambon (Puy-de-Dôme)1
Each of the 8 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 Georissus
- Source
- Wikipedia/Commons
- Credit
- Udo Schmidt from Deutschland
- Licence
- CC BY-SA 2.0
- Commercial use
- the licence allows it
No 3D scan of Georissus 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
- Source
- Wikipedia, “Georissus”
- 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 itGeorissinae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Latreille 1809