The Sheinwoodian age (433-431 Ma) occurs after the Telychian age and before the Homerian age.
433.4±0.8–430.5±0.7 Ma
Phanerozoic; Paleozoic; Silurian; Wenlock
Flora
Cooksonia barrandei, is the earliest known vascular plant (Libertin et al., 2018)
Fossils are from the Czech Republic dating to ~432 Ma