GeologicTimescale

Numbers refer to end of time period, in millions of years before now. Is there a better way to format this?

NeogenePeriod

23 PalaeogenePeriod

65 MesozoicEra

CretaceousPeriod

146 JurassicPeriod

208 TriassicPeriod

245 PalaeozoicEra

PermianPeriod

290 CarboniferousPeriod

363 DevonianPeriod

409 SilurianPeriod

439 OrdovicianPeriod

510 CambrianPeriod

570 PrecambrianEra