Theriodontia

The theriodonts are a major group of therapsids which appeared during the Middle Permian and which includes the gorgonopsians and the eutheriodonts, itself including the therocephalians and the cynodonts.

Theriodontia

Mojcaj · 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
NeotherapsidaPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At least 18 million years on record.

The record covers at least 259.857 Mya to 241.464 Mya. No occurrence read is dated outside 266.9 Mya to 237 Mya.

Permian — about 8 of 9 occurrencesPermianEarly Triassic — about 0 of 9 occurrencesMiddle Triassic — about 1 of 9 occurrencesMiddle TriassicLate Triassic — about 0 of 9 occurrences267–266 Mya — about 0.0 occurrences266–265 Mya — about 0.1 occurrences265–264 Mya — about 0.1 occurrences264–263 Mya — about 0.8 occurrences263–262 Mya — about 0.8 occurrences262–261 Mya — about 0.8 occurrences261–260 Mya — about 0.8 occurrences260–259 Mya — about 1.0 occurrences259–258 Mya — about 1 occurrence258–257 Mya — about 1 occurrence257–256 Mya — about 0.5 occurrences256–255 Mya — about 0.3 occurrences255–254 Mya — about 0.3 occurrences254–253 Mya — about 0.1 occurrences253–252 Mya — about 0.1 occurrences252–251 Mya — about 0.0 occurrences242–241 Mya — about 0.2 occurrences241–240 Mya — about 0.2 occurrences240–238 Mya — about 0.2 occurrences238–237 Mya — about 0.2 occurrences237–236 Mya — about 0.1 occurrences259.857 Mya241.464 Mya267.5 Mya236.4 Mya

9 occurrences of Theriodontia on record, most of them in the Permian. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

9 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

5 formations

Kulchumovskaya — 51.66°N, 55.93°ELower Sakamena — 23.45°S, 45.08°EMalokinelskaya — 51.47°N, 55.14°EBukobay — 51.44°N, 55.52°EMalaya Kinel — 51.86°N, 56.20°E

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The named rock units Theriodontia 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.

Theriodontia and its relatives

Permian

Where Theriodontia and its relatives were recorded in the Permian.

Found in the same rock

22 taxa

The Paleobiology Database records 6 sites for Theriodontia, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

Each of the 9 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 Theriodontia

Credit
Mojcaj
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

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 itNeotherapsida through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Owen 1876)