alluvial
ancient
animal
archaeologist
artifact
bird
bone
brush
caveman
cenozoic
clean
deposits
desert
dinosaur
discovered
evidence
evolution
excavation
expedition
explorer
extinct
extract
femoral
field
find
fossil
fossilized
ground
history
link
male
man
mesozoic
missing
paleontologist
paleozoic
research
researcher
sample
sandstone
scientist
soil
stone
tibia