unfossiliferous
adjective
un·fos·sil·if·er·ous ˌən-ˌfä-sə-ˈli-f(ə-)rəs 
: not containing fossils : not fossiliferous
a block of unfossiliferous limestone
Word History
First Known Use
1836, in the meaning defined above
- in quest of
- in question
- in quick succession
- in quotes
- in rapid succession
- in re
- in reach
- in reaction to
- in readiness
- in real life
- in reality
- in reason
- in record numbers
- in record time
- in reference to
- in regard to
- in regular use
- in rehearsal
- in relation to
- in rem
- in remission
- in repose
- in req
- in rerum natura
- in reserve