Clade | |
Subclade |
Taxon | |
Taxon |
Brachiosauridae
|
Nominal Author | Riggs 1904 |
2nd Nominal Author | |
Taxon Status | ACTIVE |
Comments | Brachiosauridae was first defined as a stem-based taxon by Wilson and Sereno (1998) and Sereno (1988) using Brachiosaurus and Saltasaurus as specifiers. The active definition is a first-order revision that uses species and includes two additional external specifiers (Euhelopus zdanskyi, Camarasaurus lentus) to ensure that these will be excluded should they prove more closely related to Brachiosaurus brancai. Camarasaurus lentus is used rather than the type species Camarasaurus supremus, as it is represented by clearly associated skulls and skeletons and is the species most often used to represent Camarasaurus in phylogenetic analysis (either explicitly or implicitly). |
Potential Synonomy |
Active Phylogenetic Definition | |
Active Definition |
The most inclusive clade containing Brachiosaurus brancai Janensch 1914 but not Saltasaurus loricatus Bonaparte and Powell 1980, Euhelopus zdanskyi Wiman 1929, Camarasaurus lentus Marsh 1889.
|
Shorthand |
> Brachiosaurus brancai but not Saltasaurus loricatus, Euhelopus zdanskyi, Camarasaurus lentus. |
Definitional Author |
Sereno 2005 |
Definition Status | checked |
Definition Type | STEM |
Node-Stem Triplet | STEM |
Other Triplet Taxa |
Titanosauriformes, Somphospondyli |
Specifiers | |
Specifier(s) A |
Brachiosaurus brancai |
Specifier(s) B | |
Specifier(s) C |
Saltasaurus loricatus, Euhelopus zdanskyi, Camarasaurus lentus
|
Qualifiers | |
+Taxon | |
-Taxon | |
Datum | |
Taxonomic Content | |
Publication Year |
Unknown Unknown Unknown 1998 |
Inactive Taxon Status | |
Rejection Criteria | |
Critique | |
Definitional History #1 | |
Earliest Record | Titanosauriforms more closely related to Brachiosaurus than to Saltasaurus, including, by this definition, the French “Bothriospondylus” madagascarensis (i.e., not the material from Madagascar), Brachiosaurus, Eucamerotus, and Pleurocoelus. |
Latest Record | Wilson and Sereno 1998:20-21 |
Range (My) | |
Range (My) |
Brachiosaurus than to Saltasaurus, including, by this definition, the French “Bothriospondylus” madagascarensis, Brachiosaurus, Eucamerotus, Pleurocoelus |
Range (My) |
Definitional History #2 | |
Earliest Record | All titanosauriforms closer to Brachiosaurus than to Saltasaurus. |
Latest Record | Sereno 1998:63 |
Range (My) | |
Range (My) |
Brachiosaurus, Saltasaurus |
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Definitional History #10 | |
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