Olkasuchus

Olkasuchus; Temporal range: Late Triassic ; ~227–213 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Archosauria
Clade:	Pseudosuchia
Order:	† Aetosauria
Family:	† Stagonolepididae
Genus:	† Olkasuchus ; Sotomayor et al., 2025
Species:	†O. walasto
Binomial name
	†Olkasuchus walasto; Sotomayor et al., 2025

Last updated November 02, 2025

Olkasuchus is an extinct genus of desmatosuchine aetosaur that lived in northwestern Argentina during the Norian stage of the Late Triassic.^[2]

References

↑ Kent, Dennis V.; Santi Malnis, Paula; Colombi, Carina E.; Alcober, Oscar A.; Martínez, Ricardo N. (2014). "Age constraints on the dispersal of dinosaurs in the Late Triassic from magnetochronology of the Los Colorados Formation (Argentina)". Proceedings of the National Academy of Sciences . 111 (22): 7958–7963. Bibcode:2014PNAS..111.7958K. doi: 10.1073/pnas.1402369111 . PMC 4050597 . PMID 24843149.
↑ Sotomayor, Juan C.; Leardi, Juan Martín; Desojo, Julia Brenda; Gaetano, Leandro Carlos; Otero, Alejandro; Apaldetti, Cecilia. "Olkasuchus walasto, a new taxon of Aetosauria (Archosauria; Pseudosuchia) from the Los Colorados Formation (Upper Triassic), Argentina". Historical Biology. 0 (0): 1–22. doi:10.1080/08912963.2025.2571751. ISSN 0891-2963.

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[1] Kent, Dennis V.; Santi Malnis, Paula; Colombi, Carina E.; Alcober, Oscar A.; Martínez, Ricardo N. (2014). "Age constraints on the dispersal of dinosaurs in the Late Triassic from magnetochronology of the Los Colorados Formation (Argentina)". Proceedings of the National Academy of Sciences . 111 (22): 7958–7963. Bibcode:2014PNAS..111.7958K. doi: 10.1073/pnas.1402369111 . PMC 4050597 . PMID 24843149.

[2] Sotomayor, Juan C.; Leardi, Juan Martín; Desojo, Julia Brenda; Gaetano, Leandro Carlos; Otero, Alejandro; Apaldetti, Cecilia. "Olkasuchus walasto, a new taxon of Aetosauria (Archosauria; Pseudosuchia) from the Los Colorados Formation (Upper Triassic), Argentina". Historical Biology. 0 (0): 1–22. doi:10.1080/08912963.2025.2571751. ISSN 0891-2963.

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