[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
was Lu and Ji 2006/paedomorphic salamanders
While every study sheds light on the sticky subject of evolution,
think about what salamanders do when they go paedomorphic.
They become little rhipidistians or basal tetrapods (really the same
thing, right?), without the scales. That's about as basic and
pleisomorphic as you can go. No wonder they all converge!
Whether you want to call tiny pterosaurs tiny adults or tiny babies,
it doesn't matter to me what your religion is. The fact of the matter
is, when tiny pteros are included in a matrix relationships between
sister taxa become clarified, changes between sister taxa take on a
spectral blend and you get a single tree with crazy derived forms at
the tips of bushy branches and the metaphorical 'plain brown
sparrows' forming the backbone of the chain. Sharp beaks go with
sharp beaks. Horizontal teeth go with horizontal teeth. Small
pectoral complexes go with... well, you get the picture.
Surprising what can happen when you just let it happen without a