Riojasuchus: Research Database
Archosauria (Ornithosuchidae) · Late Triassic (~210 MYA) · South America — Argentina
Research Note: Riojasuchus was an ornithosuchid archosaur from the Late Triassic of Argentina — significant for understanding early archosaur diversity and the evolutionary relationships of this major group of reptiles.
| Research Finding | Status | Grade | Year | Method | Citation | Impact |
|---|---|---|---|---|---|---|
Taborda & von Baczko 2022: New data on Riojasuchus and Triassic archosaurs Acta Palaeontologica Polonica | Confirmed | A | 2022 | Fossil | Taborda & von Baczko, Acta Palaeontologica Polonica | Taxonomy |
Müller & von Baczko 2019: Riojasuchus and archosaur diversity in the Triassic Acta Palaeontologica Polonica | Confirmed | B | 2019 | Fossil | Müller & von Baczko, Acta Palaeontologica Polonica | Morphology |
Status:
Confirmed Direct evidence
Grade:A Strong consensus
B Good evidence
What We Still Do Not Know About Riojasuchus
- Complete skeletal morphology.
- Phylogenetic relationships within Ornithosuchidae.
- Ecological role in the Triassic ecosystem.
In Depth
Riojasuchus is a genus of ornithosuchid pseudosuchian that lived during the late Triassic. At the time of writing the Ornithosuchidae is a small group of pseudosuchian archosaurs that aside from Riojasuchus, only contains Ornithosuchus and Venaticosuchus.
Further Reading
- Dos nuevas “faunas” de reptiles triasicos de Argentina [Two new reptilian “faunas” of the Argentine Triassic]. - Gondwana Stratigraphy (IUGS Symposium, Buenos Aires) 2:283-306. - J. F. Bonaparte - 1969.
