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RE: Ontogenetic stages in thyreophorans
Nick Gardner wrote:
Outside of the juvenile examples of stegosaurs described by Galton in the
80s (i.e. _Omosaurus_, _Stegosaurus_, "Astrodon"),
_Liaoningosaurus_ (Xu et al. 2001), the baby nodosaurid described by
Jacobs et al. (1996), _Pinacosaurus_ (? Hill et al 2003, I think), and
_Euoplocephalus_ (Coombs, 1986); are there any other examples of
_Anoplosaurus curtonatus_ is another, I believe. The lack of armour (the
reason behind the "anoplo" portion of the genus name) is possibly
ontogenetic. Suberbiola and Barrett (1999) find _A. curtonatus_ to be a
valid genus and species of ankylosaur...
Suberbiola, X.-P., and Barrett, P.M. (1999). A systematic review of
ankylosaurian dinosaur remains from the Albian of England. Special Papers in
Palaeontology 60: 177-208.