Postosuchus alisonae

Postosuchus, Ancient Greek, meaning "Crocodile from Post", is an extinct genus of rauisuchid reptiles comprising two species, P. kirkpatricki and P. alisonae, that lived in what is now North America during the Late Triassic. Postosuchus is a member of the clade Pseudosuchia, the lineage of archosaurs that includes modern crocodilians. Its name refers to Post Quarry, a place in Texas where many fossils of the type species, P. kirkpatricki, were found.

Postosuchus alisonae

Dallas Krentzel · CC BY 2.0 · 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
PostosuchusPBDB
Diet
carnivorePBDB, for Pseudosuchia
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Diapsida

Time the record covers

At most 32 million years on record.

The one occurrence read is dated to somewhere between 237 Mya and 205.7 Mya, which is a dating window rather than a span.

Middle Triassic — about 0 of 1 occurrenceLate Triassic — about 1 of 1 occurrenceLate Triassic238–237 Mya — about 0.0 occurrences237–235 Mya — about 0.0 occurrences235–234 Mya — about 0.0 occurrences234–233 Mya — about 0.0 occurrences233–232 Mya — about 0.0 occurrences232–231 Mya — about 0.0 occurrences231–230 Mya — about 0.0 occurrences230–229 Mya — about 0.0 occurrences229–228 Mya — about 0.0 occurrences228–227 Mya — about 0.0 occurrences227–226 Mya — about 0.0 occurrences226–225 Mya — about 0.0 occurrences225–224 Mya — about 0.0 occurrences224–222 Mya — about 0.0 occurrences222–221 Mya — about 0.0 occurrences221–220 Mya — about 0.0 occurrences220–219 Mya — about 0.0 occurrences219–218 Mya — about 0.0 occurrences218–217 Mya — about 0.0 occurrences217–216 Mya — about 0.0 occurrences216–215 Mya — about 0.0 occurrences215–214 Mya — about 0.0 occurrences214–213 Mya — about 0.0 occurrences213–212 Mya — about 0.0 occurrences212–210 Mya — about 0.0 occurrences210–209 Mya — about 0.0 occurrences209–208 Mya — about 0.0 occurrences208–207 Mya — about 0.0 occurrences207–206 Mya — about 0.0 occurrences206–205 Mya — about 0.0 occurrences237.6 Mya205.1 Mya

1 occurrence of Postosuchus alisonae on record, most of them in the Late 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

1 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.

Postosuchus alisonae and its relatives

Late Triassic

Where Postosuchus alisonae and its relatives were recorded in the Late Triassic.

Found in the same rock

6 taxa

The Paleobiology Database records 1 site for Postosuchus alisonae, 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 reference

Each of the 1 occurrence 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content2

Picture of Postosuchus alisonae

Credit
Dallas Krentzel
Licence
CC BY 2.0
Commercial use
the licence allows it

Photogrammetry

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Postosuchus alisonae · NCSM:NCSM-VertPaleo:13731

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 itPostosuchus through timeFormations of the Late TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Peyer et al. 2008