RE: Hongshanornis Photo

[David Marjanovic <david.marjanovic@gmx.at>]

> De Ricqlès, Padian, Horner, Lamm and Myhrvold (2003, _JVP_
> 23[2]:373-386) described the histology of *Confuciusornis* and concluded
> that it was not fully endothermic, and this has been supported in part
> by retention of LAGs

Other than the correlation observed in extant animals, there is no 
evidence that slow, interrupted growth is caused by slow metabolism.

> and a proposed shortened maturation phase, resulting in small adult
> body size.

This is a separate observation that has to do with its small adult size 
(for a dinosaur) but not its metabolism.

> but these may have
> been like similar small mammals and needed to eat to stay warm.

That's almost the definition of endothermy, isn't it?

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