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