I think this was meant to be a cartoon featuring paleontologists, not that the greater public will always make such finer shades of distinction.  (Reminds me of a visit we made, when I was a kid, to Dinosaur National Monument.)  Perhaps there are visual cues in the hatwear:

Pith Helmet = Paleontologist (and in other contexts, Big White Hunter)
Fedora = Archaeologist
Any others?   
;)

Marty
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-------------- Original message -------------- 
From: geoff carver <[log in to unmask]> 

> Not sure how long this link will be valid, but here's another cartoon 
> dealing with archaeology (sort of; somehow T. Rex found his way in there, 
> too, so maybe more reflective of the public's general perceptions of our 
> "discipline"): 
> http://www.uclick.com/client/nyt/po/