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Clade
Subclade

Taxon
Taxon
Titanosauriformes
Nominal Author
Salgado et al. 1997
2nd Nominal Author
Taxon Status ACTIVE
Comments
First coined and defined as a node-based taxon by Salgado et al. (1997), Titanosauriformes has had similar definitions by subsequent authors. Using only two well known, nested species (Saltasaurus loricatus, Brachiosaurus brancai) creates the least ambiguous definition.
Potential Synonomy

Active Phylogenetic Definition
Active Definition
The least inclusive clade containing Brachiosaurus brancai Janensch 1914 and Saltasaurus loricatus Bonaparte and Powell 1980.
Shorthand
< Brachiosaurus brancai and Saltasaurus loricatus.
Definitional Author
Sereno 2005
Definition Status checked
Definition Type NODE
Node-Stem Triplet NODE
Other Triplet Taxa
Brachiosauridae, Somphospondyli
Specifiers
Specifier(s) A
Brachiosaurus brancai
Specifier(s) B
Saltasaurus loricatus
Specifier(s) C
Qualifiers
+Taxon
-Taxon
Datum
Taxonomic Content
Publication Year Unknown
Unknown
Unknown
1997

Inactive Taxon Status
Rejection Criteria
Critique
 

Definitional History #1
Earliest Record
The most recent common ancestor of Brachiosaurus brancai, Chubutisaurus insignis, Titanosauria, and all of its descendants.
Latest Record
Salgado et al. 1997:12
Range (My)
Range (My)
Brachiosaurus brancai, Chubutisaurus insignis, Titanosauria
Range (My)

Definitional History #2
Earliest Record
Brachiosaurus, Saltasaurus, their common ancestor, and all descendants, including by this definition Brachiosauridae and Somphospondylidae.
Latest Record
Wilson and Sereno 1998:51
Range (My)
Range (My)
Brachiosaurus, Saltasaurus
Range (My)

Definitional History #3
Earliest Record
Brachiosaurus, Saltasaurus, their most recent common ancestor and all descendants.
Latest Record
Sereno 1998:63
Range (My)
Range (My)
Brachiosaurus, Saltasaurus
Range (My)

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Definitional History #10
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