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Clade
Subclade

Taxon
Taxon
Sebecidae
Nominal Author
Simpson 1937
2nd Nominal Author
Taxon Status INACTIVE
Comments
Potential Synonomy

Active Phylogenetic Definition
Active Definition
Shorthand
Definitional Author
Definition Status Unknown
Definition Type Unknown
Node-Stem Triplet Unknown
Other Triplet Taxa
Specifiers
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Specifier(s) B
Specifier(s) C
Qualifiers
+Taxon
-Taxon
Datum
Taxonomic Content
Publication Year Unknown
Unknown
Unknown

Inactive Taxon Status
Rejection Criteria other
Critique
The taxon has been used (e.g. Steel 1973) as a monotypic family and is redundant with the genus Sebecus (Steel 1973). More recently, Sebecidae was defined by Carvalho et al. (2004) based on Sebecus and Libycosuchus (they incorrecctly cited Colbert 1946 as author of the taxon rather than Simpson 1937). Sebecidae is regarded as inactive because the evidence specifically linking Sebecus icaeorhinus to any other crocodiliform is very weak, which has generated many hypotheses regarding its closest relatives (e.g. compare the phylogenies of Carvalho et al. 20004 with Buckley et al. 2000 and Clark 1994).
 

Definitional History #1
Earliest Record
The most recent common ancestor of Sebecus and Libycosuchus an all of their descendants.
Latest Record
Carvalho et al. 2004:997.
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Sebecus, Libycosuchus
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Definitional History #9
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Definitional History #10
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