Matching Pairs Butting HeadsOnline version ........ by Tea Cher 1 Relative 2 Sturdy 3 Bashing 4 Bones 5 Helmet 6 Layer 7 Million years 8 Creature 9 Butting heads 10 Fossilized 11 Ancient 12 Unusual thin sheet of something, such as rock, soil, or clothing. 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 hitting something repeatedly with force. 1,000,000 years hard parts of the body that make up the skeleton. very old, often dating back to a time before recorded history. Plant or animal remains that are turned into stone fighting or arguing not common or expected. any living thing, such as an animal or a plant. strong and not easily broken.