石化した
ages
aggressive
ancestor
ancient
animal
archaeology
archaic
beak
bird
bones
carbonised
claws
cretaceous
dead
decayed
detailed
dig
dinosaur
discovery
display
extinct
eye socket
find
herbivore carnivore
history
lizard
mammal
mammoth
massive
mouth
predator
preserved
proof
quadruped
rare
remains
sharp
skeleton
skull
spine
structure
teeth
tyrannical