Chilognatha
Chilognatha is a subclass of the class Diplopoda, which includes the vast majority of extant millipedes, about 12,000 species.

portioid · 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
- DiplopodaPBDB
- Motility
- actively mobilePBDB, for Arthropoda
Time the record covers
At least 426 million years on record.
The record covers at least 426.7 Mya to 11.7 ka. No occurrence read is dated outside 432.9 Mya to 0 Mya.
300 occurrences of Chilognatha on record, most of them in the Carboniferous. 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
300 occurrences- Silurian3%
- Devonian5%
- Carboniferous46%
- Permian3%
- Middle Triassicunder 1%
- Late Cretaceous15%
- Eocene7%
- Oligocene3%
- Miocene14%
- Plioceneunder 1%
- Pleistocene3%
- 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. More on what this infers.
Found in
32 formations
- Carbondale Formation · Kewanee Group56
- Kladno Formation31
- Cowie Formation · Stonehaven Group8
- Joggins Formation · Cumberland Group8
- Dundee Flagstone Formation · Arbuthnott-Garvock Group7
- Ballagan Formation7
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The named rock units Chilognatha has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 further formations hold fewer occurrences each and are not listed. 152 occurrences have no formation on record, which is common for older literature.
Chilognatha and its relatives
CarboniferousWhere Chilognatha and its relatives were recorded in the Carboniferous.
Found in the same rock
3,861 taxa- Euphoberia armigera9 sites
- Polydesmida9 sites
- Acantherpestes major6 sites
- Protosilvestria sculpta6 sites
- Salticinae6 sites
- Araneae5 sites
- Architarbus rotundatus5 sites
- Eucaenus ovalis5 sites
- Euphoberia ferox5 sites
- Euphoberia granosa5 sites
- Kampecaris forfarensis5 sites
- Palaeocampa anthrax5 sites
- Pleurojulus biornatus5 sites
- Eoscorpius carbonarius4 sites
- Marpissina4 sites
- Siphonophora4 sites
- Xyloiulus4 sites
- Yantaromyrmex geinitzi4 sites
- Ablator triguttatus3 sites
- Adiphlebia lacoana3 sites
- Albadesmus almondi3 sites
- Andrognathus burmiticus3 sites
- Aphantomartus pustulatus3 sites
- Apidae3 sites
The Paleobiology Database records 125 sites for Chilognatha, 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
83 references- Checklist of the Myriapoda in Cretaceous Burmese amber and a correction of the Myriapoda identified by Zhang (2017)28
- New Carboniferous Myriapoda from Illinois27
- Fritsch, 189919
- Millipeds from Dominican amber, with the description of two new species (Diplopoda: Siphonophoridae) of Siphonophora18
- Archipolypoda, a subordinal type of spined myriapods from the Carboniferous formation18
- The millipedes and centipedes of Chiapas amber15
- Fritsch, 189911
- Footnotes and taxonomic names, in Die im Bernstein befindlichen Crustaceen, Myriapoden, Arachniden und Apteren der Vorwelt11
- Morphology and taxonomy of Paleozoic millipedes (Diplopoda: Chilognatha: Archipolypoda) from Scotland8
- Mummified Palaeogene Spirostreptida and Julida (Arthropoda, Diplopoda) from southern France7
- A new terrestrial millipede fauna of earliest Carboniferous (Tournaisian) age from southeastern Scotland helps fill ‘Romer's Gap'7
- Canadian fossil insects, myriapods and arachnids, 3. Notes upon myriapods and arachnids found in sigillarian stumps in the Nova Scotia coal field7
Each of the 300 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. 71 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 Chilognatha
- Source
- Wikipedia/Commons
- Credit
- portioid
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Chilognatha 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, “Chilognatha”
- 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 itDiplopoda through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Latreille 1802)