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Re: *Longisquama* and Fossil "Ghost" Lineages -- Rehashing an Old Debate
In a message dated 6/26/00 5:59:02 PM Pacific Daylight Time, ELurio@aol.com
> The last common ancestor of grapholites and Cephalodiscus was the Ordovican
> at least.
Unless _Cephalodiscus_ could be shown to nest within the graptolites, that
is. But this does not appear to be the case, from what's been said on the