Desmatosuchus
Desmatosuchus is an extinct genus of archosaur belonging to the order Aetosauria. It lived in North America and potentially India during the Late Triassic.

Evolutionnumber9 · CC BY-SA 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
- DesmatosuchiniPBDB
- Diet
- herbivorePBDB
- 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.
14 occurrences of Desmatosuchus 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
14 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
8 formations
- Chinle Formation6
- Bluewater Creek Formation · Chinle Group2
- Cooper Canyon Formation · Dockum Group1
- Tecovas Formation · Dockum Group1
- San Pedro Arroyo Formation · Chinle Group1
- Garita Creek Formation · Chinle Group1
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The named rock units Desmatosuchus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Desmatosuchus and its relatives
Late TriassicWhere Desmatosuchus and its relatives were recorded in the Late Triassic.
Found in the same rock
97 taxa- Archosauria4 sites
- Mystriosuchinae4 sites
- Phytosauria4 sites
- Archosauriformes3 sites
- Calyptosuchus wellesi3 sites
- Metoposauridae3 sites
- Poposaurus gracilis3 sites
- Stagonolepididae3 sites
- Acaenasuchus geoffreyi2 sites
- Anaschisma2 sites
- Apachesaurus gregorii2 sites
- Crocodylomorpha2 sites
- Dicynodontia2 sites
- Dinosauriformes2 sites
- Drepanosauridae2 sites
- Dromomeron gregorii2 sites
- Herrerasauridae2 sites
- Leptosuchus2 sites
- Ornithischia2 sites
- Postosuchus kirkpatricki2 sites
- Reptilia2 sites
- Rutiodon2 sites
- Shuvosaurus inexpectatus2 sites
- Stagonolepis2 sites
The Paleobiology Database records 13 sites for Desmatosuchus, 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
9 references- Description of new material of the aetosaur Desmatosuchus spuriensis (Archosauria: Suchia) from the Chinle Formation of Arizona and a revision of the genus5
- The tetrapod fauna of the Upper Triassic lower Chinle Group (Adamanian: latest Carnian) of the Zuni Mountains, west-central New Mexico2
- First occurrence of Doswellia cf. D. kaltenbachi (Archosauriformes) from the Late Triassic (middle Norian) Chinle Formation of Arizona and its implications on proposed biostratigraphic correlations across North America during the Late Triassic1
- A new species of the Late Triassic aetosaur Desmatosuchus (Archosauria: Pseudosuchia)1
- Late Triassic microvertebrates from the lower Chinle Group (Otischalkian-Adamanian: Carnian), southwestern U.S.A.1
- The beginning of the age of dinosaurs in Wyoming1
- Triassic stratigraphy in the Lucero Uplift, Cibola, Valencia and Socorro Counties, New Mexico1
- Paleontology and vertebrate biochronology of the Upper Triassic Garita Creek Formation, east-central New Mexico1
- Preliminary description of a new suborder of phytosaurian reptiles with a description of a new species of Phytosaurus1
Each of the 14 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 content3
Picture of Desmatosuchus
- Source
- Wikipedia/Commons
- Credit
- Evolutionnumber9
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Desmatosuchus haplocerus · UCMP:V:27408
3D model
- Source
- Sketchfab
- Credit
- DeinonychusBlue
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
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 itDesmatosuchini through timeFormations of the Late TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Case 1920