'It was the first of the 3 periods that make up the Mesozoic Era'
the Triassic
TRI ME: It was the first of the 3 periods that make up the Mesozoic Era
It was the first of the 3 periods that make up the Mesozoic Era
It was the first of the 3 periods that make up the Mesozoic Era
"TRI" ME
the Triassic
"TRI" ME