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fossils × 85paleontology × 36
geology × 17
rocks × 7
stratigraphy × 5
oceanography × 4
earth-history × 4
minerals × 4
dating × 4
identification-request × 4
sedimentology × 3
paleoclimatology × 2
terminology × 2
crystals × 2
fossil-fuel × 2
limestone × 2
evolution × 2
paleobotany × 2
amber × 2
climate-change × 1
atmosphere × 1
mineralogy × 1
planetary-science × 1
sea-level × 1
mountains × 1