Re: Big Dinosaur Prints Found

[Carl Mehling <cosm@amnh.org>]

"Trace fossils are the only fossil, with the exception of an 
immutably autochthonous benthonic organism, that you can look at and 
know with certainty that the organism that left it was actually 
present on the bedding plane or bounding surface that you are now 
observing."

A few years back a dinosaur track was found on Long Island which was 
clearly brought in from Connecticut or elsewhere in the Conn. River 
Valley. Yes, the dinosaur was clearly present on the observed bedding 
plane, but the bedding plane was transported - a nightmare of 
reworking. Extinct Mesozoic dinosaurs can still migrate :)



Carl Mehling
National Center for Science Literacy, Education and Technology
American Museum of Natural History
Central Park West @79th Street
New York, N.Y.  10024
(212) 769-5849