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Reply to Arkansas trackway

In reply to a message I recieved 8-22-95 but unfortunity lost the e-mail 
address for...

location: Arkansas, Howard County, near Nashville 
site: Briar site (open gypsum quarry)
track names: Brontopodus birdi
possible maker: Pleurocoelus (sauropoda, brachiosauridae)
formation: De Queen Formation (equiv. to Glen Rose in Texas) 
age: lower Cretaceous (lower Albian)

note: another trackway can be found 10 miles away at the Highland Quarry, 
Pike County, Arkansas...also made by sauropods same age.

ref: Pittman,J.G. 1984. Geology of the De Queen Formation of Arkansas.
       Gulf Coast Assoc. Geol. Soc. Trans. 34:201-209.
     Pittman,J.G. and Gillette,D.D., 1989. The Briar Site: a new 
       sauropod dinosaur tracksite in Lower Cretaceous Beds of 
       Arkansas, USA. p.313-332. in Gillette & Lockley (eds.) Dinosaur 
       Tracks and Traces.     

P.S. I'll see what I can dig up on Arkansaurus fridayi...

---John Schneiderman (dino@revelation.unomaha.edu)