Assertion: tuatara's order | /r/AtLocation | the triassic period
Facets:
Source sentences:
text: The single species of tuatara is the sole surviving member of its order, which originated in the Triassic period around 240 million years ago  and which flourished during the Mesozoic era.
text: The single species of tuatara is the sole surviving member of its order, which originated in the Triassic period around 240 million years ago  and which flourished during the Mesozoic era.