An epoch is a geological age and not a specific time span. So “65-145 Mya” (million years ago) would be the appropriate label. I can’t seem to find a label for “million years” (other than megaannum, which is just an SI prefix for years, but I don’t think Ive ever heard that used?)
Except a millennium
milleniais a thousand years, not a million years.65-145 epochs ago might be the correct wording?“Mya” would be the correct term.
Edit: corrections from MBM, bisby.
If we’re being precise, it’s also one millennium or multiple millennia (knowing Latin plurals is a curse)
An epoch is a geological age and not a specific time span. So “65-145 Mya” (million years ago) would be the appropriate label. I can’t seem to find a label for “million years” (other than megaannum, which is just an SI prefix for years, but I don’t think Ive ever heard that used?)
Megaanum was also a common side effect of rear encounters with legendary adult performer John Holmes
You’re right — the first result I stumbled upon was the Simple wikipedia result which erroneously calls an epoch 1,000,000 years ( simple wiki link ).