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Rodents, Multis & Dino bones
I enjoyed Michel Chartier's thoughtful comments. I stand
over th e date of origin of the true rodents. It was a slip of
the pen (or keyborad) to say they originated in the Eocene. He
is quite right - the started in the l ate palaeocen. My comments
on the mammalian teeth in ALberta refered only to that site. I
found no Multituerculate teeth there when I was sieving soil,
only insectivore, so I guess I forgot the Multis. Bone gnawing
by them is certainly possible.
I wish y ou guys would stop writing "myr" for million years. In
scientific notation the prefix "m" means milli, so "myr" means
thousanths of a year. 100 myr would be justd o ver a month. The
correct way is to use "M" for Mega or million. And use the
inernational "a" for annum, not the anglocentric "yr" for year.
Sorry to be so didactic.
>From: David Brez Carlisle