Clade | |
Subclade |
Taxon | |
Taxon |
Avesuchia
|
Nominal Author | Benton 1999 |
2nd Nominal Author | |
Taxon Status | INACTIVE |
Comments | |
Potential Synonomy | Archosauria (crown clade definition) |
Active Phylogenetic Definition | |
Active Definition | |
Shorthand | |
Definitional Author | |
Definition Status | Unknown |
Definition Type | Unknown |
Node-Stem Triplet | Unknown |
Other Triplet Taxa | |
Specifiers | |
Specifier(s) A | |
Specifier(s) B | |
Specifier(s) C | |
Qualifiers | |
+Taxon | |
-Taxon | |
Datum | |
Taxonomic Content | |
Publication Year |
Unknown Unknown Unknown |
Inactive Taxon Status | |
Rejection Criteria |
junior synonym |
Critique | Avesuchia, originally coined by Benton (1999) and later partially defined (Benton 2004), is his replacement for crown archosaurs. Traditional use of Archosauria included a few basal stem taxa with an antorbital fenestra that lie outside the node joining extant Crocodylia and Neornithes. Benton (2004:8) prefered a form-qualified definition of Archosauria (although the one he presented was not a complete definition) using the antorbital fenestra, a character that is lost many times within the group. This usage is so close in taxonomic content to a slightly more restricted crown clade definition for the well known taxon Archosaruia (Gauthier 1986) that many have adopted the latter usage, including the present taxonomic compilation. |
Definitional History #1 | |
Earliest Record | Avemetatarsalia and Crurotarsi and all their descendants. |
Latest Record | Benton 1999:1440 |
Range (My) | |
Range (My) |
Avemetatarsalia, Crurotarsi |
Range (My) |
Definitional History #2 | |
Earliest Record | Avemetatarsalia and Crurotarsi (and sister taxa of Crurotarsi that are closer to Crocodylia than to Aves) and all their descendants. |
Latest Record | Benton 2004:14 |
Range (My) | |
Range (My) |
Avemetatarsalia, Crurotarsi |
Range (My) |
Definitional History #3 | |
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Definitional History #8 | |
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Definitional History #9 | |
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Definitional History #10 | |
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