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Branch-based clade:
†
Protopyknosia
Nesbitt, Stocker, Chatterjee, Horner & Goodwin, 2021
(vertebrate)
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Hierarchy
Nomenclature
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Entity:
Archosauriformes (Clade)
..†Antarctanax (Genus)
..†Barberenasuchus (Genus)
..†Cuyosuchus (Genus)
..†Erythrosuchia (Order)
..Eucrocopoda (Clade)
..†Galtonia (Genus)
..†Heteropelta (Genus)
..†Koilamasuchus (Genus)
..†Lucianosaurus (Genus)
..†Marcianosuchus (Genus)
..†Protecovasaurus (Genus)
..†Proterosuchia (Order)
..†Sarmatosuchus (Genus)
..†Vigilosaurus (Genus)
..†Protopyknosia (Clade)
....†Kranosaura (Genus)
....†Triopticus (Genus)
Concise hierarchy
(Kingdom)
Animalia
-
(Phylum)
Chordata
-
(Class)
Reptilia
Current position
Archosauriformes
(Clade)
Gauthier 1994 [Gauthier 2020]
Ref:
PBDB
: 5 Mar 2021 (Nesbitt et al., 2021); Paleofile[19 Jun 2026].
Number of Subtaxa
2026
Available in Systema Naturae 2000
†2g
1989-present
Systema Naturae 2000
: 20 Jun 2026
[; †2g]
©2004-2026 Universal Taxonomic Services
Last updated:
28 Aug 2026