Chroniosuchus
Chroniosuchus is an extinct genus of chroniosuchid from the upper Permian period. The genus was first named by Vjuschkov in 1957.

Dmitry Bogdanov · 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
- ChroniosuchidaePBDB
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- brackish,freshwater,terrestrialPBDB, for Tetrapoda
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 266.9 Mya and 256.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
14 occurrences of Chroniosuchus on record, most of them in the Permian. 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
14 occurrences- Permian100%
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
5 formations
- Kutuluk Formation2
- Kulchumovskaya Formation2
- Kutulukskaya Formation2
- Salarevo Formation2
- Isheevo Formation1
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The named rock units Chroniosuchus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.
Chroniosuchus and its relatives
PermianWhere Chroniosuchus and its relatives were recorded in the Permian.
Found in the same rock
71 taxa- Isadia aristoviensis6 sites
- Karpinskiosaurus secundus6 sites
- Toyemia blumentalis6 sites
- Dvinosaurus primus4 sites
- Annatherapsidus petri3 sites
- Inostrancevia latifrons3 sites
- Pareiasauridae3 sites
- Scutosaurus karpinskii3 sites
- Vivaxosaurus trautscholdi3 sites
- Dvinosaurus2 sites
- Elph borealis2 sites
- Isadia2 sites
- Pareiasauria2 sites
- Toyemia tverdochlebovi2 sites
- Acropholis stensioei1 site
- Anadontella1 site
- Boreolepis tataricus1 site
- Chthonosaurus velocidens1 site
- Cuneatochara1 site
- Darwinuloides svijazhicus1 site
- Dicynodontidae1 site
- Dvinia prima1 site
- Elginiidae1 site
- Esteria angulata1 site
The Paleobiology Database records 11 sites for Chroniosuchus, 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
5 references- Revision of the Late Permian Chroniosuchians (Amphibia, Anthracosauromorpha) from Eastern Europe7
- Upper Permian vertebrates and their sedimentological context in the South Urals, Russia3
- Permian and Triassic therocephals (Eutherapsida) of Eastern Europe2
- Type and reference sections of the Middle and Upper Permian of the Volga and Kama River Regions: A Field Guidebook of XVIII International Congress on Carboniferous and Permian1
- Permian and Triassic anthracosaurs from Eastern Europe1
Each of the 14 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 Chroniosuchus
- Source
- Wikipedia/Commons
- Credit
- Dmitry Bogdanov
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Chroniosuchus 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 itChroniosuchidae through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Vjuschkov 1957