>> If anyone knows of any references that discuss the origins of nervous
> tissue/nervous systems I would be much obliged. Much of what I have
> found focuses on the evolution of _mammalian_ nervous systems or some
> such. I am interested in the earliest structures. Thanks ...
Try:
Northcutt and Gans, 1983, Quart.Rev.Biol.58 1-28,
Lacalli et al. 1994 Phil.Trans.R.Soc.Lond.B. 344, 165-185
Lacalli, 1996 same journal, 351: 243-263
and watch out for a Northcutt paper (1996) that is going
to appear in the Israel Journal of Zoology ("The origin of
craniates..)
if you're interested in craniate CNS evolution
Helmut
