• bisby@lemmy.world
    link
    fedilink
    English
    arrow-up
    4
    ·
    5 months ago

    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?)