Life Through the Ages
By Bertha Morris Parker
This little paperback has several nice color illustrations by an
uncredited artist*. Although the book was written
by Bertha Morris
Parker, a prolific author of childrens science and nature books, it was
"checked for scientific
accuracy by Carroll
Lane Fenton."

It is unfortunate that the illustrator[s] is/are not listed as a few of
the illustrations are quite nice, such as the cover illustration and
the illustration
of the Plesiosaur, above.
Added 8/2/09:
According to paleoartist Dan Varner:
"The artist is Frederick Seyfarth.
He was pretty much the in-house illustrator for Row Peterson's
education publications. These
are superb watercolors. The
publishers were based out of the Chicago area so Seyfarth studied
models at the Field Museum and
the Milwaukee Public Museum."
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