腕龙科由 Taylor 对高胸腕龙与布氏长颈巨龙逐字符分离的研究表示；该属级修订不定义完整科级范围或每个腕龙科成员。
claim:taxon:brachiosauridae图谱首页 / 参考文献 / A re-evaluation of Brachiosaurus altithorax Riggs 1903 (Dinosauria, Sauropoda) and its generic separation from Giraffatitan brancai (Janensch 1914)
参考文献 / paperA re-evaluation of Brachiosaurus altithorax Riggs 1903 (Dinosauria, Sauropoda) and its generic separation from Giraffatitan brancai (Janensch 1914)
Taylor, M.P.
年份2009
来源角色primary-study
DOI / ID10.1671/039.029.0309
适用范围
taxonomy · 形态 · range · methods
Detailed specimen and character reassessment separating two historically conflated brachiosaurid genera; it does not establish a family-wide range.
主张账本
Brachiosauridae 仅以 154.8–145 Ma 展示为Brachiosaurus 与 Giraffatitan 晚侏罗世模式材料的比较区间，而非完整科级范围。该区间是来源限定的样本窗口，不是全球首现、末现、分化日期、连续占据或直接祖先断言。
claim:taxon:brachiosauridae:source-bounded-range-rc49