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Re: Stegosaurus species
Tim Williams writes,
>There could be as many as three genera represented from among the Morrison
>material now called "Stegosaurus". _S. armatus_ (?including _S.
>ungulatus_), _S. stenops_, and _S. longispinus_ may each represent a
>separate genus. It's been suggested that _S. longispinus_ might be a N.
>American species of _Kentrosaurus_. Bakker put _stenops_ in the genus
>_Diracodon_, but this genus name shouldn't be used.
On the subject of species classification, do we need to have a certain number
of specimens uncovered until we have a good idea of where to draw the line
between each species? What I have noticed is that when dinosaurs were first
discovered centuries ago, there were dozens of new species described. Over the
past half-century, many of these "separate" species have been redefined and
sunk together under one or two names.
"History repeats itself. it has to. No one listens the first time around."