In a TED talk about dinosaurs[1], Jack Horner claims that many dinosaur species are probably the same specimen at a different stage of development (baby, child, adult), but that paleontologists have classified them as separate partially because they had no way of telling at what stage of development a fossil is (for which he has a solution, which is looking at the inner structure of the fossilized bone), but also partially because every paleontologist wants to discover his or her own dinosaur.

I wonder if that applies here as well.

[1] http://www.ted.com/talks/jack_horner_shape_shifting_dinosaur...