Smilosuchus gregorii

Nobu Tamura ( http://spinops.blogspot.com ) · CC BY 3.0 · via Wikidata/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
- SmilosuchusPBDB
- Diet
- carnivorePBDB, for Phytosauria
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Diapsida
Time the record covers
At most 32 million years on record.
Every occurrence read is dated to somewhere between 237 Mya and 205.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Smilosuchus gregorii 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
6 occurrences- Late Triassic100%
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
- Chinle Formation4
- Tecovas Formation · Chinle Group2
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The named rock units Smilosuchus gregorii has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Smilosuchus gregorii and its relatives
Late TriassicWhere Smilosuchus gregorii and its relatives were recorded in the Late Triassic.
Found in the same rock
25 taxa- Anaschisma browni3 sites
- Aetosauria2 sites
- Apachesaurus gregorii2 sites
- Arganodus dorotheae1 site
- Calyptosuchus wellesi1 site
- Colobodontidae1 site
- Hemicalypterus weiri1 site
- Lasalichthys1 site
- Leptosuchus1 site
- Neoselachii1 site
- Orectolobiformes1 site
- Otischalkia elderae1 site
- Plesioelliptio sp.1 site
- Postosuchus1 site
- Postosuchus kirkpatricki1 site
- Redfieldiidae1 site
- Rhynchosauridae1 site
- Shuvosauridae1 site
- Sphenodontidae1 site
- Spinosuchus1 site
- Spinosuchus caseanus1 site
- Trilophosaurus buettneri1 site
- Triodus moorei1 site
- Turseodus1 site
The Paleobiology Database records 6 sites for Smilosuchus gregorii, 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
3 references- Late Triassic (Carnian and Norian) Tetrapods from the Southwestern United States3
- Rotten Hill: A Late Triassic bonebed in the Texas Panhandle, USA2
- Studies of the phytosaurs Machaeroprosopus and Rutiodon1
Each of the 6 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 Smilosuchus gregorii
- Source
- Wikidata/Commons
- Credit
- Nobu Tamura ( http://spinops.blogspot.com )
- Licence
- CC BY 3.0
- Commercial use
- the licence allows it
No 3D scan of Smilosuchus gregorii was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itSmilosuchus through timeFormations of the Late TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Camp 1930)