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Clade
Subclade

Taxon
Taxon
Plateosauridae
Nominal Author
Marsh 1895
2nd Nominal Author
Taxon Status ACTIVE
Comments

The taxon is shown by some to be monospecific (e.g. Yates 2003). In this case, however, all closely related taxa were not included. Other cladistic analyses have shown this clade to be more speciose (Galton and Upchurch 2004). Sereno (1999:fig. 1) accidentally listed Plateosauridae for the node that was intended for Massospondylidae, and visa versa.

The definition is a first-order revision of that given by Sereno (1998) and includes a second external specifier (Saltasaurus loricatus) to ensure that the name will be used only for a clade that does not include Sauropoda. This taxon approximates the content of the discarded taxa Sellosauridae (Huene 1908) and Zanclodontidae.

Potential Synonomy

Active Phylogenetic Definition
Active Definition
The most inclusive clade containing Plateosaurus engelhardti Meyer 1837 but not Massospondylus carinatus Owen 1854 or Saltasaurus loricatus Bonaparte and Powell 1980.
Shorthand
> Plateosaurus engelhardti but not Massospondylus carinatus, Saltasaurus loricatus.
Definitional Author
Sereno 2005
Definition Status checked
Definition Type STEM
Node-Stem Triplet STEM
Other Triplet Taxa
Plateosauria, Massospondylidae
Specifiers
Specifier(s) A
Plateosaurus engelhardti
Specifier(s) B
Specifier(s) C
Massospondylus carinatus, Saltasaurus loricatus
Qualifiers
+Taxon
-Taxon
Datum
Taxonomic Content
Publication Year Unknown
Unknown
Unknown
1998

Inactive Taxon Status
Rejection Criteria
Critique
 

Definitional History #1
Earliest Record
All plateosaurs closer to Plateosaurus than to Massospondylus.
Latest Record
Sereno 1998:63
Range (My)
Range (My)
Plateosaurus, Massospondylus
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Definitional History #2
Earliest Record
All taxa more closely related to Plateosaurus than to Yunnanosaurus or Massospondylus.
Latest Record
Galton and Upchurch 2004:252
Range (My)
Range (My)
Plateosaurus, Yunnanosaurus, Massospondylus
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