unfossiliferous

adjective
un·​fos·​sil·​if·​er·​ous | \ ˌən-ˌfä-sə-ˈli-f(ə-)rəs How to pronounce unfossiliferous (audio) \

Definition of unfossiliferous

: not containing fossils : not fossiliferous a block of unfossiliferous limestone

First Known Use of unfossiliferous

1836, in the meaning defined above

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The first known use of unfossiliferous was in 1836

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