Procolophonidae
Procolophonidae is an extinct family of small, lizard-like procolophonian "parareptiles" known from the Late Permian to Late Triassic that were distributed across Pangaea, having been reported from Europe, North America, China, South Africa, South America, Antarctica, and Australia.

Marta Zaher, Robert A. Coram, Michael J. Benton · CC BY 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
- ProcolophonoideaPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Amniota
Time the record covers
At least 51 million years on record.
The record covers at least 256.8 Mya to 205.7 Mya. No occurrence read is dated outside 264.28 Mya to 174.7 Mya.
137 occurrences of Procolophonidae on record, most of them in the Early Triassic. 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
137 occurrences- Permian2%
- Early Triassic52%
- Middle Triassic21%
- Late Triassic25%
- Early Jurassicunder 1%
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
48 formations
- Katberg Formation · Beaufort Group16
- Burgersdorp Formation · Beaufort Group9
- Sanga do Cabral Formation · Rosário do Sul Group8
- Wolfville Formation · Chatham Group7
- Petropavlovka Formation5
- Fremouw Formation · Beacon Group4
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The named rock units Procolophonidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 24 further formations hold fewer occurrences each and are not listed. 20 occurrences have no formation on record, which is common for older literature.
Procolophonidae and its relatives
Early TriassicWhere Procolophonidae and its relatives were recorded in the Early Triassic.
Found in the same rock
446 taxa- Archosauriformes15 sites
- Procolophon trigoniceps13 sites
- Cynodontia9 sites
- Temnospondyli8 sites
- Prolacerta broomi7 sites
- Redfieldiidae7 sites
- Theropoda6 sites
- Archosauria5 sites
- Lepidosauria5 sites
- Lissodus5 sites
- Osteichthyes5 sites
- Sphenodontia5 sites
- Actinopterygii4 sites
- Archosauromorpha4 sites
- Hypsognathus fenneri4 sites
- Lonchidion humblei4 sites
- Lystrosaurus declivis4 sites
- Lystrosaurus murrayi4 sites
- Phaanthosaurus simus4 sites
- Phytosauria4 sites
- Procolophon4 sites
- Reptilia4 sites
- Semionotidae4 sites
- Thrinaxodon liorhinus4 sites
The Paleobiology Database records 88 sites for Procolophonidae, 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
81 references- Tetrapod localities from the Triassic of the SE of European Russia7
- Novye Dannye po Prokolofoninam SSSR [New data on Procolophonines of the USSR]6
- Late Triassic island dwarfs? Terrestrial tetrapods of the Ruthin fissure (South Wales, UK) including a new genus of procolophonid4
- Procolophonids from the Early Triassic of Poland4
- A re-evaluation of small tetrapods from the Middle Triassic Otter Sandstone Formation of Devon, England4
- Procolophonidae (Reptilia: Parareptilia) from the Upper Triassic Wolfville Formation of Nova Scotia, Canada4
- Tooth replacement in a new genus of procolophonid from the Early Triassic of China4
- New Procolophonids from the Triassic Cynognathus Zone of South Africa4
- The distribution of the Karroo vertebrate fauna4
- Bica São Tomé, um novo sítio fossilífero para o Triássico inferior do sul do Brasil3
- Cranial osteology of Hypsognathus fenneri, a latest Triassic procolophonid reptile from the Newark Supergroup of Eastern North America3
- The Triassic Reptile Procolophon in Antarctica3
Each of the 137 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. 69 further references are not listed. 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 Procolophonidae
- Source
- Wikipedia/Commons
- Credit
- Marta Zaher, Robert A. Coram, Michael J. Benton
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Procolophonidae indet. · NHMUK:PAL:PV R 38804
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 itProcolophonoidea through timeFormations of the Early TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Lydekker 1889