We’ve been hinting about it for ages, coyly writing “Brachiosaurusbrancai in quotes and muttering darkly about things not being how we all tend to assume … now, finally, the paper is out.

The paper

Taylor, Michael P.  2009.  A re-evaluation of Brachiosaurus altithorax Riggs 1903 (Dinosauria, Sauropoda) and its generic separation from Giraffatitan brancai (Janensch 1914).  Journal of Vertebrate Paleontology 29(3):787-806.

… and its very unexciting nomenclatural correction in in Journal of Vertebrae Paleontology 31(3):727

Unofficial supplementary information online

The Nexus file and full-resolution figures.

SV-POW! posts about the paper

19 Responses to “Taylor (2009) on Brachiosaurus and Giraffatitan

  1. Chris Traxon Says:

    Hi could you please have a look at the following vertebra http://www.christraxon.pwp.blueyonder.co.uk/Vertid.htm and tell me what it might be from. I thought it might be Pliosaur but have been informed that id is not so i am now a little confused. It is from the Kimmeridge clay if East Yorkshire, and measures 2.5″ x 2.5″ x 2.5″.

    many thanks

    Chris


  2. [...] the name nor the specimen are exactly new as such, but this has to go to Giraffatitan. How many names prompt the author to put an apology in the acknowledgements of his [...]


  3. [...] 25, 2010 In no-long-quite-so-recent paper on Brachiosaurus and Giraffatitan, I gave as one of the autapomorphies of Brachiosaurus proper that the [...]


  4. [...] am sort of nonplused by this.  I’m certainly not saying that my 2009 paper is unassailable: as soon anyone comes along with evidence that Brachiosaurus and Giraffatitan [...]


  5. [...] of the few sauropods I am in anyway familiar with is Giraffatitan (formerly Brachiosaurus) and as a result I have developed more of an interest in the brachiosaurs [...]


  6. [...] change without warning at any time.  [The Brachiosaurus altithorax reconstruction above is from this paper.  White bones are ones that we know are definitely from that species; light grey probably are; [...]


  7. [...] Sauropoda) and its generic separation from Giraffatitan brancai (Janensch 1914) — published in [...]


  8. [...] “The giant Brachiosaurus finds of the Germans” are now, of course, Giraffatitan. [...]


  9. [...] my Brachiosaurus/Giraffatitan paper (Taylor 2009a), though, I subverted the usual structure by postponing the Systematic Palaeontology [...]


  10. [...] Start with an existing matrix, add constraints, re-run it, and see how the tree-length changes.  Since I am familiar with it, I started with the matrix from my 2009 paper on brachiosaurs. [...]


  11. [...] for once this really is Brachiosaurus and not Giraffatitan. Quite some time ago I put out a call for photos I could use on the Musings to help provide [...]


  12. [...] Tanzania. If you want to know why this animal is named Giraffatitan and not Brachiosaurus, here‘s your [...]


  13. [...] 1 (the sauropod-history review) was in the Geological Society dinosaur-history volume;  chapter 2 (the Brachiosaurus revision) was in JVP; chapter 3 (the Xenoposeidon description) was in Palaeontology; chapter 4 (the [...]


  14. […] next most-cited paper, the Brachiosaurus revision (Taylor 2009), is in the Journal of Vertebrate Palaeontology – unquestionably the flagship […]


  15. […] brancai is not Brachiosaurus“. (This of course was drawn from the work that became my subsequent paper on that subject, Taylor 2009) And as I was going through my photos to prepare the slides of that talk, I thought to […]


  16. […] House next autumn. I’ve been writing about [Brachiosaurus and Giraffatitan], and have read your 2009 study vindicating the proposal to separate them into two genera. [...] I know you consider Brachiosaurus […]


  17. […] in 2008, when I did the GDI of Giraffatitan and Brachiosaurus for my 2009 paper on those genera, I came out with estimates of 28688 and 23337 kg respectively. At the time I said […]


  18. […] mass estimates for the single specimen BM.R.2181 (formerly known as HMN SII), the paralectotype of Giraffatitan brancai, which is the basis of the awesome mounted skeleton in […]


  19. […] body breaks down among its constituent parts in Plateosaurus (from this post), Giraffatitan (from Taylor 2009), and Dreadnoughtus (based on my “tall neck and tail” GDI). Dreadnoughtus seems to have […]


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