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re: running speeds

Please note: the actual paper on footprint doesn't give MAXIMUM speeds; it gives the speeds the animals were moving at the time it made those particular tracks.

Usain Bolt does not run most of the time, and racehorses mostly just walk around.

On 2016-01-30 17:38, Hammer wrote:
Yes - in the case of the recent posts on tyrannosaurs, looking at the
reproductions of these animals, the impression doesn't come across as
just some ambling, strolling toothy behemoths - a more dynamic
creature(s) is suggested.  And I seriously doubt that, if it was
possible, anyone would put their feet where their papers are by
testing it out with a live tyranno!  "Mmmm, once I spit out its
'feathers' it was pretty tasty!"

Thomas R. Holtz, Jr.
Email: tholtz@umd.edu   Phone: 301-405-4084
Geology Office: Geology 4106
Scholars Office: Centreville 1216
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
Fax: 301-314-9661

Faculty Director, Science & Global Change Program, College Park Scholars
Fax: 301-314-9843

Mailing Address:        Thomas R. Holtz, Jr.
                        Department of Geology
                        Building 237, Room 1117
                        University of Maryland
                        College Park, MD 20742 USA