Chthonosaurus

Chthonosaurus is an extinct genus of eutherocephalian therapsids from the Late Permian Kutulukskaya Formation of Russia. The type species Chthonosaurus velocidens was named in 1955.

Chthonosaurus

Smokeybjb · 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
ChthonosauridaePBDB
Diet
carnivorePBDB, for Therocephalia
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At most 7.5 million years on record.

Every occurrence read is dated to somewhere between 264.28 Mya and 256.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Permian — about 2 of 2 occurrencesPermian264–264 Mya — about 0.0 occurrences264–264 Mya — about 0.1 occurrences264–264 Mya — about 0.1 occurrences264–263 Mya — about 0.1 occurrences263–263 Mya — about 0.1 occurrences263–263 Mya — about 0.1 occurrences263–263 Mya — about 0.1 occurrences263–262 Mya — about 0.1 occurrences262–262 Mya — about 0.1 occurrences262–262 Mya — about 0.1 occurrences262–261 Mya — about 0.1 occurrences261–261 Mya — about 0.1 occurrences261–261 Mya — about 0.1 occurrences261–261 Mya — about 0.1 occurrences261–260 Mya — about 0.1 occurrences260–260 Mya — about 0.1 occurrences260–260 Mya — about 0.1 occurrences260–259 Mya — about 0.1 occurrences259–259 Mya — about 0.1 occurrences259–259 Mya — about 0.1 occurrences259–259 Mya — about 0.1 occurrences259–258 Mya — about 0.1 occurrences258–258 Mya — about 0.1 occurrences258–258 Mya — about 0.1 occurrences258–257 Mya — about 0.1 occurrences257–257 Mya — about 0.1 occurrences257–257 Mya — about 0.1 occurrences257–257 Mya — about 0.0 occurrences264.8 Mya256.3 Mya

2 occurrences of Chthonosaurus 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

2 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

1 formation

Kutulukskaya — 51.68°N, 54.22°E

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The named rock units Chthonosaurus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Chthonosaurus and its relatives

Permian

Where Chthonosaurus and its relatives were recorded in the Permian.

Found in the same rock

28 taxa

The Paleobiology Database records 2 sites for Chthonosaurus, 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

1 reference

Each of the 2 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Chthonosaurus

Credit
Smokeybjb
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Chthonosaurus was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itChthonosauridae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Vjushkov 1955