1 Brachiosauridae PT Defined by Wilson and Sereno (1998) as the clade of all organisms more closely related to _Brachiosaurus_ than to _Saltasaurus_. z39.50s://example.zthes.z3950.org:3950/dino title 23 BT 2 Titanosauriformes PT NT 3 Brachiosaurus PT NT 4 Sauroposeidon PT 2 Titanosauriformes PT Defined by Salgado et al. (1997), and revised by Wilson and Sereno (1998) as the least inclusive clade containing _Brachiosaurus_ and _Saltasaurus_. NT 1 Brachiosauridae PT 3 Brachiosaurus PT Erected by Riggs (1903) with type species B. altithorax BT 1 Brachiosauridae PT NT 5 Brachiosaurus altithorax PT NT 6 Brachiosaurus brancai PT 4 Sauroposeidon PT Erected by Wedel et al. (2000) with type species S. proteles BT 1 Brachiosauridae PT NT 7 Sauroposeidon proteles PT 5 Brachiosaurus altithorax PT Erected by Riggs (1903) on type specimen FMNH P25107 BT 3 Brachiosaurus PT 6 Brachiosaurus brancai PT Erected by Janensch (1914) on type specimen HMN SII BT 3 Brachiosaurus PT 7 Sauroposeidon proteles PT Erected by Wedel et al. (2000) on type specimen OMNH 53062 BT 4 Sauroposeidon PT