ammonite
analyzing
ancient
anthropology
archaeologist
archeology
brushing
digging
discovery
dust
earth
evolution
examining
extinct
extinct animal
female
fossil
geologic time scale
ground
hat
historic
history
human
human hands
invertebrate
jurassic
native
oceanographer
old
one woman only
outdoors
paleonthology
paleontologist
past
person
prehistoric
prehistoric era
prehistory
research
revealing
rock
sand
scientist
shell
sign
spiral
symbol
unrecognizable person
vertical
woman