Bradysaurus
Bradysaurus is a genus of large, basal pareiasaur. They possessed a covering of armoured scutes, likely serving as defense against predators. Fossils of Bradysaurus are known from the Tapinocephalus Assemblage Zone of the South African Karoo. Along with the similarly large dinocephalia, the bradysaurs constituted the herbivorous megafauna of the late Middle Permian Period in the region.

Jonathan Chen · 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
- PareiasauriaPBDB
- Diet
- herbivorePBDB, for Pareiasauria
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Amniota
Time the record covers
At most 47 million years on record.
Every occurrence read is dated to somewhere between 298.9 Mya and 251.902 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
30 occurrences of Bradysaurus 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
30 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
1 formation
- Abrahamskraal Formation · Beaufort Group19
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The named rock units Bradysaurus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 occurrences have no formation on record, which is common for older literature.
Bradysaurus and its relatives
PermianWhere Bradysaurus and its relatives were recorded in the Permian.
Found in the same rock
43 taxa- Anteosaurus magnificus5 sites
- Brachyprosopus broomi3 sites
- Gorgonopsia3 sites
- Pareiasauria3 sites
- Titanosuchus ferox3 sites
- Embrithosaurus2 sites
- Emydops2 sites
- Rhinesuchus whaitsi2 sites
- Struthiocephalus whaitsi2 sites
- Alopecognathus angusticeps1 site
- Anningia megalops1 site
- Anteosaurus1 site
- Avenantia kruisvleiensis1 site
- Broomia perplexa1 site
- Cynariognathus1 site
- Dicynodon1 site
- Diictodon1 site
- Diictodon feliceps1 site
- Dinocephalia1 site
- Eriphostoma1 site
- Eriphostoma microdon1 site
- Jonkeria1 site
- Jonkeria haughtoni1 site
- Jonkeria ingens1 site
The Paleobiology Database records 15 sites for Bradysaurus, 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
6 references- The fauna of the Tapinocephalus Zone (Beaufort Beds of the Karoo)11
- Pareiasaurian studies. Part I. - An Attempt at a Classification of the Pareiasauria based on Skull Features10
- The distribution of the Karroo vertebrate fauna6
- The oldest procolophonoid (Amniota: Parareptilia) - new discovery from the lower beaufort of South Africa1
- A taxonomic revision of pareiasaurian reptiles: implications for Permian terrestrial paleoecology1
- Researches on the Structure, Organization, and Classification of the Fossil Reptilia. VII. Further Observations on Pareiasaurus1
Each of the 30 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 Bradysaurus
- Source
- Wikipedia/Commons
- Credit
- Jonathan Chen
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
Photogrammetry
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Bradysaurus baini · NHMUK:PAL:PV R 4066
The description on this site
- Source
- Wikipedia, “Bradysaurus”
- 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 itPareiasauria through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Watson 1914