Question

Vascular plants first developed on Earth during the _________ period.

Answer 1

Early Vascular Plants. The first detailed vascular plant fossils appear in rocks from middle Silurian, about 425 million years ago. The oldest of these, including a plant called Aglaophyton, appear to have possessed conducting cells similar to the hydroids of mosses.

Answer 2

Hey dude !!!

470 million years ago .....