R. T. Bird

In our timeline he worked for the National Museum of Natural History, yes, the same one as in the Ben Stiller movie.  His article on the discovery of the tracks:

http://www.naturalhistorymag.com/master.html?http://www.naturalhistorymag.com/editors_pick/1941_02_pick.html

I noticed something interesting.  The tracks that Bird had his foot on in the previous weeks episode looks a whole lot like the foot tracks of a lamvin.  Hope I didn't spoil anything.   

Well, I drew those tracks based on photographs Bird himself took at the site. The difference between the 3-toed dino track and a lamviin track is that the dino's toes all point mostly forward, whereas a lamviin's are spread roughly 120 degrees apart from one another.

No spoiler here.

Scott:
     The lamvin shown on page 338, his right food inside, pointed at the 2nd box from the left shows a track that looks to me like a dinosaur track.

It may not be clear from this angle that Gokk is standing on his toes, which lamviin tend to do.