[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Tarsitano's challenges
Title: Re: Tarsitano's challenges
interesting to note a different form of challenge that Tarsitano has
presented recently. In the roundtable discussion after the SICB
1999 symposium, Tarsitano spoke up to say that (paraphrasing him,
IIRC) the structures on Longisquama do not look like the
predecessors to feathers, or feathers, or whatever. This seemed
to stun Martin and others who were advocating Longisquama's,
umm, things, as feathers/protofeathers/nonavian feathers.
Tarsitano has long advocated "thecodonts" such as
Megalancosaurus, but apparently not Longisquama, as
alternatives to the theropod theory. He is one of the few, if
not only, dissenters among the dissenters to the theropod
look closely at the some of dissenters' arguments (e.g. Ruben et
al.'s "dorsoventrally compressed" theropod body vs.
Feduccia's "mediolaterally compressed" theropod body) you
can find similar examples. They don't agree on everything but
they seem to overlook their disagreements, in contrast to theropod
theory backers who are happy to argue about any relevant detail.
John R. Hutchinson
Department of Integrative
Phone: (510) 643-2109
3060 Valley Life Sciences Bldg.
Fax: (510) 642-1822
University of California
Berkeley, CA 94720-3140