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Re: four winged Archaeopteryx
David Marjanovic wrote:
Are they? Last I checked *C.* had those faint impressions,
This is news to me. Do you have the reference which says that
_Compsognathus_ preserved some kind of hair/bristles/fuzz? I know Ostrom
(1978) mentioned some kind of "striations" present at various places in the
holotype (forearm, ischium, base of the tail); but these impressions could
represent internal soft tissue.
_Juravenator_ certainly doesn't preserve any feather-like structures. The
tail does preserve integumentary structures, in the form of the skin (made
up of small tubercles).
and a *Pterodactylus* specimen had goethite bristles that seem to have
replaced "hair" in fossilisation.
Again, news to me. I'm not saying you're wrong, BTW. But again, do you
have a ref for this?
Hot and dry.
Monsoonal and semiarid, was Solnhofen. So this would be right.