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Clade
Subclade Archosauria: Avemetatarsalia to Neornithes 
Taxon Feedback
Taxon Andesauridae 
Nominal Author Calvo and Bonaparte 1991 
2° Nominal Author Bonaparte and Coria 1993 
Taxon Status active
inactive
Comments  
Potential Synonomy Andesaurinae, Andesauroidea 
Active Phylogenetic Definition Feedback
Active Definition  
Shorthand  
Definitional Author  
Definition Status original
textual substitution
first-order revision
second-order revision
Definition Type node
stem
Node-Stem Triplet yes
no
Other Triplet Taxa  
Specifiers
Specifier A  
Specifier(s) B  
Specifier(s) C  
Qualifiers
+Taxon  
-Taxon  
Datum  
Taxonomic Content stem (entirely extinct)
crown (extant-bounded)
mixed (extant/extinct-bounded)
Publication Year  
Inactive Taxon Status Feedback
Rejection Criteria junior synonym
historically polyphyletic
incomplete definition
no definition
apomorphy-based
redundant
other 
Critique No definition has been proposed. Andesauridae was coined by Bonaparte and Coria (1993) to include Andesaurus delgadoi and Argentinosaurus huinculensis, two relatively poorly known forms with relationships that have not been clearly supported by cladistic analysis. 
 
Current Age Range Feedback
Earliest Record  
Latest Record  
Range (My)  
Basis for Range  
Additional Definitional History: None Available