Alopecognathus angusticeps
Alopecognathus is an extinct genus of therocephalian therapsids from the Late Permian of South Africa.

Christian F. Kammerer · 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
- AlopecognathusPBDB
- Diet
- carnivorePBDB, for Therocephalia
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Amniota
Time the record covers
At most 4.5 million years on record.
Every occurrence read is dated to somewhere between 264.28 Mya and 259.857 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Alopecognathus angusticeps 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
2 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 Group1
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The named rock units Alopecognathus angusticeps has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Alopecognathus angusticeps and its relatives
PermianWhere Alopecognathus angusticeps and its relatives were recorded in the Permian.
Found in the same rock
22 taxa- Pristerognathoides minor2 sites
- Pristerognathoides vanwyki2 sites
- Titanosuchus ferox2 sites
- Anningia megalops1 site
- Bradysaurus1 site
- Cynariognathus1 site
- Dicynodon1 site
- Diictodon feliceps1 site
- Emydops1 site
- Eriphostoma1 site
- Glanosuchus macrops1 site
- Jonkeria1 site
- Moschops1 site
- Moschops capensis1 site
- Pristerognathoides1 site
- Pristerognathoides parvus1 site
- Rhinesuchus whaitsi1 site
- Robertia broomiana1 site
- Scaloposauridae1 site
- Scymnosaurus1 site
- Struthiocephaloides cavifrons1 site
- Tapinocephalus atherstonii1 site
The Paleobiology Database records 2 sites for Alopecognathus angusticeps, 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
1 referenceEach of the 2 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content1
Picture of Alopecognathus angusticeps
- Source
- Wikipedia/Commons
- Credit
- Christian F. Kammerer
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Alopecognathus angusticeps was found in Sketchfab.
Smithsonian Open Access and MorphoSource were 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 itAlopecognathus through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Broom 1915