Relacionar Columnas Butting HeadsVersión en línea ........ por Tea Cher 1 Sturdy 2 Creature 3 Layer 4 Ancient 5 Million years 6 Helmet 7 Relative 8 Unusual 9 Butting heads 10 Fossilized 11 Bones 12 Bashing hard parts of the body that make up the skeleton. a person who is related to you, such as a parent, child, sibling, or cousin. hard hat that is worn on the head to protect it from injury very old, often dating back to a time before recorded history. hitting something repeatedly with force. any living thing, such as an animal or a plant. not common or expected. fighting or arguing thin sheet of something, such as rock, soil, or clothing. 1,000,000 years strong and not easily broken. Plant or animal remains that are turned into stone