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Clade
Subclade

Taxon
Taxon
Dicraeosauridae
Nominal Author
Janensch 1929
2nd Nominal Author
Huene 1956
Taxon Status ACTIVE
Comments
The active definition is a first-order revision of that given by Sereno (1998), a definition also used by Upchurch et al. (2004:304).
Potential Synonomy

Active Phylogenetic Definition
Active Definition
The most inclusive clade containing Dicraeosaurus hansemanni Janensch 1914 but not Diplodocus longus Marsh 1878.
Shorthand
> Dicraeosaurus hansemanni but not Diplodocus longus.
Definitional Author
Sereno 2005
Definition Status checked
Definition Type STEM
Node-Stem Triplet STEM
Other Triplet Taxa
Flagellicaudata, Diplodocidae
Specifiers
Specifier(s) A
Dicraeosaurus hansemanni
Specifier(s) B
Specifier(s) C
Diplodocus longus
Qualifiers
+Taxon
-Taxon
Datum
Taxonomic Content
Publication Year Unknown
Unknown
Unknown
1998

Inactive Taxon Status
Rejection Criteria
Critique
 

Definitional History #1
Earliest Record
All diplodocoids closer to Dicraeosaurus than to Diplodocus.
Latest Record
Sereno 1998:63
Range (My)
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Dicraeosaurus, Diplodocus
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