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Re: Notarium question (ADDENDUM)
With reference to David Peters and Jame Headden part of this thread:
Jaime A. Headden" wrote:
> David Peters (email@example.com) wrote:
> 1. That funny new bone on top of the dorsal hump on Megalancosaurus.>
And Jaime Headden replied:
> Not sure this should be counted, or at least only with great
> reservations; the fusion of the distal ends of the neural spines of the
> second and third dorsals occurs only in *Megalancosaurus* among
> drepanosaurids, and only in the neural spines.
At 06.31 19/08/2003 -0500, David Peters wrote:
No, Jaime, I was referring to a _new_ bone. One _above_ the fused dorsals.
Don't have the Renesto reference at hand. Will try to find.
Sorry for late reply, I was "on the field" (but not for work ;-) ), anyway,
here it is:
Renesto S. 2000. Bird-like head on a chameleon body: New specimens of the
enigmatic diapsid reptile Megalancosaurus from the Late Triassic of
Northern Italy. Rivista Italiana di Paleontologia e Stratigrafia 106(2):
The bones quoted by David are indeed two thin bony sheets of triangular,
fan-like appearance that lie on top of the "hump" (enlarged neural spines)
of *three* different drepanosaurid genera: Megalancosaurus, Drepanosaurus
and the so called (invalid name) "Vallesaurus". Apparently they are
paired, i. e. a right and a left one. They are illustrated-for Meg. and
"V" -with drawings and photos in the paper above quoted .
Cheers to all...
A good traveler leaves no tracks.
Good speech lacks faultfinding.
A good counter needs no calculator.
A well-shut door will stay closed without a latch.
Skillful fastening will stay tied without knots.
Prof. Silvio Renesto
Department of Structural and Functional Biology
Università degli Studi dell'Insubria
via Dunant 3