17 April 2015
The Russian born paleontologist and geologist Alejandro Mateievich Piatnitzky has been immortalized by being the namesake of an Argentinian dinosaur, Piatnitzkysaurus floresi. Named in 1979 (with remains collected in 1977, 1982, and 1983) by Napoleon Bonaparte, this Middle Jurassic dinosaur was a midsized carnivore that highly resembled Allosaurus. The resemblance was noted nearly twenty years ago, but it has not run into any kind potential lumping situations. We will have to look at this comparison during this week as we look at the story of the dinosaur and its history.
16 April 2015
15 April 2015
PeerJ flow chart makes a large deal out of is the shape of the bifurcation of the neural spines on the vertebrae. The Brontosaurus neural spines appear to have a sharper angle of bifurcation and a shorter vertebra as a whole. The Apatosaurus vertebrae are less acute in their neural spine angles and appear larger and flatter as a result. The heads of the two dinosaurs are believed to be extremely similar, perhaps identical. Their pelves have no significant differences either when viewed as a whole; smaller differences may exist on the individual bones of the pelvis of course. Those that read the paper yesterday are aware of the evidence that was used to describe the split between the two, so going in depth here should not be necessary.
14 April 2015
There are an absolute plethora of papers about Brontosaurus, Apatosaurus, and why they are and are not the same dinosaurs. The only paper that I am going to link and recommend to everyone today is the most recent paper that was published last week. The PeerJ article is available free online and has the ability for the reader to leave comments on different parts of the article. Enjoy the read, and definitely discuss below.
13 April 2015
12 April 2015
For the most part kids never actually lost Brontosaurus. Many of the sources for dinosaur information still listed Brontosaurus as a valid name or, at the very most listed it in parentheses as Apatosaurus (Brontosaurus). That is why the majority of sites that we can reference today mention or are titled Apatosaurus (with the exception of the misspelled "Apotosaurus" of KidsDigDinos). The New Zealand hosted Science Kids hosts a good encyclopedia style page and Animals for kids parallels and maybe even outdoes this. The black and white search of images turns up a plethora of coloring sheets that can be used to make your own thunder lizard.