Angonisaurus

Angonisaurus is an extinct genus of kannemeyeriiform dicynodont from the Middle Triassic of Africa between 247 and 242 million years ago. Only one species, Angonisaurus cruickshanki has been assigned to this genus. This genus is thought to have been widely spread but rare in southern Gondwana. Though few in number, the fossil record of Angonisaurus cruickshanki contains multiple specimens giving it a measurable stratigraphic range. Sexually dimorphic features are found in Angonisaurus which include presence or absence of tusks and difference is size and robustness of the temporal arch and the rostral.

Angonisaurus

via GBIF · CC0 · via GBIF. 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
KannemeyeriiformesPBDB
Diet
herbivorePBDB, for Dicynodontia
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At most 5.6 million years on record.

Every occurrence read is dated to somewhere between 247 Mya and 241.464 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Triassic — about 0 of 2 occurrencesMiddle Triassic — about 2 of 2 occurrencesMiddle Triassic247–247 Mya — about 0.1 occurrences247–247 Mya — about 0.1 occurrences247–246 Mya — about 0.1 occurrences246–246 Mya — about 0.1 occurrences246–246 Mya — about 0.1 occurrences246–246 Mya — about 0.1 occurrences246–246 Mya — about 0.1 occurrences246–245 Mya — about 0.1 occurrences245–245 Mya — about 0.1 occurrences245–245 Mya — about 0.1 occurrences245–245 Mya — about 0.1 occurrences245–244 Mya — about 0.1 occurrences244–244 Mya — about 0.1 occurrences244–244 Mya — about 0.1 occurrences244–244 Mya — about 0.1 occurrences244–244 Mya — about 0.1 occurrences244–243 Mya — about 0.1 occurrences243–243 Mya — about 0.1 occurrences243–243 Mya — about 0.1 occurrences243–243 Mya — about 0.1 occurrences243–242 Mya — about 0.1 occurrences242–242 Mya — about 0.1 occurrences242–242 Mya — about 0.1 occurrences242–242 Mya — about 0.1 occurrences242–242 Mya — about 0.1 occurrences242–241 Mya — about 0.1 occurrences247.5 Mya241 Mya

2 occurrences of Angonisaurus on record, most of them in the Middle 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

2 formations

Manda Beds — 10.32°S, 35.22°EFremouw — 84.28°S, 164.35°E

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The named rock units Angonisaurus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Angonisaurus and its relatives

Middle Triassic

Where Angonisaurus and its relatives were recorded in the Middle Triassic.

Found in the same rock

5 taxa

The Paleobiology Database records 2 sites for Angonisaurus, 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. 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 Angonisaurus

Source
GBIF
Credit
via GBIF
Licence
CC0
Commercial use
the licence allows it

Structured light scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Angonisaurus cruickshanki · NHMUK:PAL:PV R 9732

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 itKannemeyeriiformes through timeFormations of the Middle TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cox and Li 1983