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Subclade |
Taxon | |
Taxon |
Chimaerasuchidae
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Nominal Author | Carvalho et al. 2004 |
2nd Nominal Author | |
Taxon Status | INACTIVE |
Comments | |
Potential Synonomy | Sphagesauridae |
Active Phylogenetic Definition | |
Active Definition | |
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Definitional Author | |
Definition Status | Unknown |
Definition Type | Unknown |
Node-Stem Triplet | Unknown |
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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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