Seymouria baylorensis

Uncredited · via Wikidata/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
- SeymouriaPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- brackish,freshwater,terrestrialPBDB, for Tetrapoda
Time the record covers
At most 16 million years on record.
Every occurrence read is dated to somewhere between 290.1 Mya and 274.4 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Seymouria baylorensis 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
5 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
3 formations
- Arroyo Formation · Clear Fork Group3
- Wellington Formation · Sumner Group1
- Vale Formation1
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The named rock units Seymouria baylorensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Seymouria baylorensis and its relatives
PermianWhere Seymouria baylorensis and its relatives were recorded in the Permian.
Found in the same rock
57 taxa- Captorhinus aguti3 sites
- Brachydectes newberryi2 sites
- Cacops aspidephorus2 sites
- Diadectes2 sites
- Dimetrodon giganhomogenes2 sites
- Diplocaulus2 sites
- Diplocaulus magnicornis2 sites
- Eryops2 sites
- Eryops megacephalus2 sites
- Isodectes obtusus2 sites
- Labidosaurus hamatus2 sites
- Acheloma1 site
- Anisodexis1 site
- Aspidosaurus1 site
- Aspidosaurus chiton1 site
- Brachydectes1 site
- Captorhinikos valensis1 site
- Captorhinoides valensis1 site
- Captorhinus1 site
- Cardiocephalus sternbergi1 site
- Casea broilii1 site
- Casea nicholsi1 site
- Dasyceps microphthalmus1 site
- Diadectes tenuitectes1 site
The Paleobiology Database records 3 sites for Seymouria baylorensis, 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- The Vale Formation (Lower Permian): Its Vertebrates and Paleoecology1
- Early Permian Vertebrates1
- American Permian Vertebrates1
- Cacops, Desmospondylus; new genera of Permian vertebrates1
- Permische Stegocephalen und Reptilien aus Texas1
Each of the 5 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 Seymouria baylorensis
- Source
- Wikidata/Commons
- Credit
- nobody named on the record
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
3D model
- Source
- Sketchfab
- Credit
- wildlifeandbones
- Licence
- CC Attribution-NonCommercial-ShareAlike
- Commercial use
- the licence does not allow it
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itSeymouria through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Broili 1904