Page 9 - The Restless Earth Fossils
P. 9

Fossils


                         blade, and a tail vertebra, all belonging to the meat-eating dino-
                         saur Tyrannosaurus rex. Fickle’s dog did not get to chew on the
                         bones, but Fickle got to chew on an unsettling thought: The world
                         was once a vastly different place from what it is today.
                             What other fossil mysteries lie buried in the Earth awaiting
                         discovery?  Can  these  fragments  of  former  lives  serve  as  a  lens
                         through which prehistoric worlds come into focus again?
                             Ancient Romans would have called anything dug up from the
                         ground  a  fossilium.  That  word  became  fossile  in  French,  which
                         came  to  refer,  with  a  similar  meaning,  to  everything  from  a
                         miner’s  gold  nugget  to  a  burrowing  crab.  People  often  puzzled
                         over peculiar “formed stones” that looked like giant or misshapen
                         versions of familiar—or not so familiar—shells, bones, and ani-
                         mals. Naturalists eventually reserved the word fossil to describe
                         such lifelike stones. Fossils are clues to old mysteries that demand
                         explanations: When did this creature live? What did it look like
                         when it lived? Why did it become extinct?


                         Fossils, Myths, and Monsters
                         Citizens of the classic civilizations of ancient Greece and Rome
                         often answered such questions with myths and stories. The Greek
                         city-states  that  nestled  around  the  northeastern  shores  of  the
                         Mediterranean  Sea  roughly  2,500  years  ago  produced  enough
                         wealth  to  allow  some  of  their  citizens  the  time  and  means  to
                         travel within Greece, to Mediterranean islands, and to more dis-
                         tant lands where they encountered the fossilized bones of giant
                         creatures.
                             Sometimes these fossils resembled smaller living species; but,
                         sometimes, they appeared to be quite different. After Greeks had
                         first seen living African elephants around 300 b.c., they correctly
                         identified the bones of ice-age mastodons as oversized versions of
                         elephants. Before that time, the hole in elephant skulls where the
                         trunk attaches may have looked like a giant eye socket and given
                         rise to legends about monstrous, one-eyed men called Cyclopes.
                         Often, oversized bones were interpreted as the remains of heroes
                         from  Greek  mythology  and  placed  in  temples  or  reburied  with








        RE_Fossils2print.indd   8                                                              3/17/09   8:58:24 AM
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