Multiview of a cervical vertebra of the Apatosaurus ajax holotype YPM 1860
September 3, 2013
I was recently bemoaning the lack of published diplodocid cervical illustrations in dorsal view. Subsequently I mentioned that Upchurch et al. (2005) had illustrated five cervicals of an Apatosaurus specimen.
I was overlooking one other paper that contains such an illustration. Which is a bit embarrassing, as it’s one of ours. In fact, it’s our most recent paper, Wedel and Taylor (2013) on sauropod neural spine bifurcation. The very first figure in that paper (the first of 25!) is relevant to my interests. So here it is:
Click through for glorious high-resolution goodness!
Upchurch, Paul, Yukimitsu Tomida, and Paul M. Barrett. 2005. A new specimen of Apatosaurus ajax (Sauropoda: Diplodocidae) from the Morrison Formation (Upper Jurassic) of Wyoming, USA. National Science Museum Monographs No. 26. Tokyo. ISSN 1342-9574.
Wedel, M.J., and Taylor, M.P. 2013. Neural spine bifurcation in sauropod dinosaurs of the Morrison Formation: ontogenetic and phylogenetic implications. Palarch’s Journal of Vertebrate Palaeontology 10(1): 1-34. ISSN 1567-2158.