What are the ferns left over from ancient times to the present?

One of the earliest plants on the earth, this is a kind of tree fern that lived in high-altitude swamps during the Carboniferous period. It propagated in large quantities through spore transmission and produced offspring. Dryopteris is its offspring, and it still continues this way of reproduction.

The tallest tree on the earth. This is the scale wood that lived 400 million years ago. They were 45 meters high and were the tallest trees on the earth at that time. Equisetum equisetum, a fern now living in swamps, is their offspring.

Fraxinidae

Tree fern was widely distributed on the earth in Mesozoic, but now its distribution area is shrinking.

As for others, you can refer to rare ferns.