Regisaurus

Regisaurus is an extinct genus of small carnivorous therocephalian. It is known from a single described species, the type species Regisaurus jacobi, from the Early Triassic Lystrosaurus Assemblage Zone of South Africa, although at least one undescribed species is also known.

Regisaurus

FunkMonk · CC BY-SA 3.0 · 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
BaurioideaPBDB
Diet
carnivorePBDB, for Therocephalia
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At most 5 million years on record.

Every occurrence read is dated to somewhere between 251.902 Mya and 247 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Permian — about 0 of 2 occurrencesEarly Triassic — about 2 of 2 occurrencesEarly TriassicMiddle Triassic — about 0 of 2 occurrences252–252 Mya — about 0.0 occurrences252–252 Mya — about 0.1 occurrences252–251 Mya — about 0.1 occurrences251–251 Mya — about 0.1 occurrences251–251 Mya — about 0.1 occurrences251–251 Mya — about 0.1 occurrences251–251 Mya — about 0.1 occurrences251–250 Mya — about 0.1 occurrences250–250 Mya — about 0.1 occurrences250–250 Mya — about 0.1 occurrences250–250 Mya — about 0.1 occurrences250–250 Mya — about 0.1 occurrences250–249 Mya — about 0.1 occurrences249–249 Mya — about 0.1 occurrences249–249 Mya — about 0.1 occurrences249–249 Mya — about 0.1 occurrences249–249 Mya — about 0.1 occurrences249–248 Mya — about 0.1 occurrences248–248 Mya — about 0.1 occurrences248–248 Mya — about 0.1 occurrences248–248 Mya — about 0.1 occurrences248–248 Mya — about 0.1 occurrences248–247 Mya — about 0.1 occurrences247–247 Mya — about 0.1 occurrences247–247 Mya — about 0.1 occurrences247–247 Mya — about 0.0 occurrences252.4 Mya246.5 Mya

2 occurrences of Regisaurus 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

2 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

1 formation

Katberg — 30.50°S, 26.00°E

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The named rock units Regisaurus 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.

Regisaurus and its relatives

Early Triassic

Where Regisaurus and its relatives were recorded in the Early Triassic.

Found in the same rock

14 taxa

The Paleobiology Database records 2 sites for Regisaurus, 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

2 references

Each 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 Regisaurus

Credit
FunkMonk
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Regisaurus 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 itBaurioidea through timeFormations of the Early TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Mendrez 1972