Syodon

Syodon is an extinct genus of dinocephalian therapsids that lived approximately 267-260 million years ago during the middle Permian period of the Paleozoic era. These therapsids, discovered in Russia were initially believed to be true mammals. Syodon was first named by Stephan Kutorga in 1838.

Syodon

MikSed · 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
SyodontinaePBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At least 7.5 million years on record.

The record covers at least 274.4 Mya to 266.9 Mya. No occurrence read is dated outside 277.3 Mya to 259.857 Mya.

Permian — about 9 of 9 occurrencesPermian278–277 Mya — about 0.0 occurrences277–277 Mya — about 0.2 occurrences277–276 Mya — about 0.2 occurrences276–275 Mya — about 0.2 occurrences275–275 Mya — about 0.2 occurrences275–274 Mya — about 0.1 occurrences267–267 Mya — about 0.3 occurrences267–266 Mya — about 1 occurrence266–266 Mya — about 1 occurrence266–265 Mya — about 1 occurrence265–264 Mya — about 1 occurrence264–264 Mya — about 0.4 occurrences264–263 Mya — about 0.4 occurrences263–262 Mya — about 0.4 occurrences262–262 Mya — about 0.4 occurrences262–261 Mya — about 0.4 occurrences261–261 Mya — about 0.4 occurrences261–260 Mya — about 0.4 occurrences260–259 Mya — about 0.1 occurrences274.4 Mya266.9 Mya277.8 Mya259.4 Mya

9 occurrences of Syodon 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

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

2 formations

Amanakskaya — 53.37°N, 52.81°EAmanakskaya — 51.82°N, 54.99°EAmanakskaya — 52.66°N, 53.48°EAmanakskaya — 52.26°N, 54.85°EAmanakskaya — 51.59°N, 54.88°ESheshmian — 58.00°N, 56.32°ESheshmian — 52.24°N, 54.70°E

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The named rock units Syodon has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Syodon and its relatives

Permian

Where Syodon and its relatives were recorded in the Permian.

Found in the same rock

42 taxa

The Paleobiology Database records 9 sites for Syodon, 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

4 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 content2

Picture of Syodon

Credit
MikSed
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

Structured light scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Syodon biarmicum · NHMUK:PAL:PV R 4077

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 itSyodontinae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Kutorga 1838