bearing or containing fossils, as rocks or strata.

1840–50; fossil + -i- + -ferous

nonfossiliferous, adjective
unfossiliferous, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
fossiliferous (ˌfɒsɪˈlɪfərəs)
(of sedimentary rocks) containing fossils

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

mid-19c., from fossil + + -ferous "producing, containing."
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
He gazes into a fossiliferous crystal ball to get an idea of what global warming will do to the world's biodiversity.
Composed of shale and much lesser fossiliferous limestone.
Two exposures of potentially fossiliferous rocks occur along the park's southern boundary.
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