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Clade
Subclade

Taxon
Taxon
Chimaerasuchidae
Nominal Author
Carvalho et al. 2004
2nd Nominal Author
Taxon Status INACTIVE
Comments
Potential Synonomy
Sphagesauridae

Active Phylogenetic Definition
Active Definition
Shorthand
Definitional Author
Definition Status Unknown
Definition Type Unknown
Node-Stem Triplet Unknown
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Qualifiers
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-Taxon
Datum
Taxonomic Content
Publication Year Unknown
Unknown
Unknown

Inactive Taxon Status
Rejection Criteria junior synonym
Critique
Chimaerasuchidae was coined by Carvalho et al. (2004) and defined with a node-based definition to include Chimaerasuchus and Simosuchus. This group, in contrast, has not been supported by other analyses and is united on the basis of weak, homoplastic character evidence (Carvalho et al. 2004:988). The family Sphagesauridae Kuhn 1968 has precedence over Chimaerasuchidae Carvalho et al. 2004, and the existence of this derived clade is now very strong (Pol 2003). Nevertheless, these two taxa are not synonyms by definition; Chimaerasuchidae, defined using Simosuchus as an internal specifier (Carvalho et al. 2004), will circumscribe some as yet uncertain, larger clade (depending on the position of Simosuchus).
 

Definitional History #1
Earliest Record
The most recent common ancestor of Chimaerosuchus and Simosuchus and all of their descendants.
Latest Record
Carvalho et al. 2004:988
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