View Details:  Prev Record    Next Record
Clade
Subclade

Taxon
Taxon
Aetosauria
Nominal Author
Nicholson and Lydekker 1889
2nd Nominal Author
Taxon Status ACTIVE
Comments
First defined by Heckert and Lucas (2000), the active definition is a first-order revision that uses the nominotypical taxon Aetosaurus ferratus as an internal specifier, rather than Desmatosuchus haplocerus, and uses nested species from several other major clades as external specifiers (Rauisuchus tiradentes, Prestosuchus chiniquensis, Poposaurus gracilis, Crocodylus niloticus). In this manner the contents of the clade are stable realtive to other clades but newfound basal aetosaurians may be incorporated.
Potential Synonomy
Aethosauri (Jaekel 1911, spelling variant)

Active Phylogenetic Definition
Active Definition
The most inclusive clade containing Aetosaurus ferratus Fraas 1877 but not Prestosuchus chiniquensis Huene 1942, Rauisuchus tiradentes Huene 1942, Poposaurus gracilis Mehl 1915, Crocodylus niloticus (Laurenti 1768).
Shorthand
> Aetosaurus ferratus but not Prestosuchus chiniquensis, Rauisuchus triradentes, Poposaurus gracilis, Crocodylus niloticus.
Definitional Author
Sereno 2005
Definition Status checked
Definition Type STEM
Node-Stem Triplet NO
Other Triplet Taxa
Specifiers
Specifier(s) A
Aetosaurus ferratus
Specifier(s) B
Specifier(s) C
Prestosuchus chiniquensis, Rauisuchus triradentes, Poposaurus gracilis, Crocodylus niloticus
Qualifiers
+Taxon
-Taxon
Datum
Taxonomic Content
Publication Year Unknown
Unknown
Unknown
2000

Inactive Taxon Status
Rejection Criteria
Critique
 

Definitional History #1
Earliest Record
All crurotarsans more closely related to Desmatosuchus than the immediate sister group, recognizing that the sister group may be rauisuchians, prestosuchians or another suchian taxon.
Latest Record
Heckert and Lucas 2000:1544
Range (My)
Range (My)
Desmatosuchus, rauisuchians, prestosuchians, another suchian taxon
Range (My)

Definitional History #2
Earliest Record
Latest Record
Range (My)
Range (My)
Range (My)

Definitional History #3
Earliest Record
Latest Record
Range (My)
Range (My)
Range (My)

Definitional History #4
Earliest Record
Latest Record
Range (My)
Range (My)
Range (My)

Definitional History #5
Earliest Record
Latest Record
Range (My)
Range (My)
Range (My)

Definitional History #6
Earliest Record
Latest Record
Range (My)
Range (My)
Range (My)

Definitional History #7
Earliest Record
Latest Record
Range (My)
Range (My)
Range (My)

Definitional History #8
Earliest Record
Latest Record
Range (My)
Range (My)
Range (My)

Definitional History #9
Earliest Record
Latest Record
Range (My)
Range (My)
Range (My)

Definitional History #10
Earliest Record
Latest Record
Range (My)
Range (My)
Range (My)