The American spelling: capable of being turned into a fossil.
From fossilize (American spelling) + -able (Latin habilis 'able to be'). American English uses -ize while British English uses -ise.
Not everything that dies becomes fossilizable—soft-bodied creatures like jellyfish are incredibly rare as fossils because they decay too quickly, which is why most fossils are hard-shelled creatures and explains the huge gaps in the fossil record!
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