Dave Peters (davidrpeters@earthlink.net) wrote:
<Does anyone know of any Permian or Triassic diapsids in which metacarpals
II-V AND metatarsals II-V _decrease_ laterally? I ran across one and was
surprised. In both cases I is smaller than II. Just wondering what it's
relatives might be.>
Drepanosaurids *Drepanosaurus,* *Megalancosaurus,* and a specimen
mentioned by Renesto in 1999 have as their longest metacarpal III, and all
others decrease in length from their successively. Similarly, they possess
phalangeal formulae of 2-2-3-3-3, so this is even more distinctive.
Cheers,
=====
Jaime A. Headden
Little steps are often the hardest to take. We are too used to making
leaps in the face of adversity, that a simple skip is so hard to do. We
should all learn to walk soft, walk small, see the world around us rather
than zoom by it.
"Innocent, unbiased observation is a myth." --- P.B. Medawar (1969)
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