Question

mention 4 classes of pteridophyles​

Answer 1

Answer:

But the discovery of pteridophytes (seed bearing ferns) broke down this artificial classification. In 1935, Sinnott introduced term Tracheophyta to include all vascular plants. Tracheophyta are further divided into four main groups : Psilopsida, Lycopsida, Sphenopsida and Pteropsida.

Answer 2

αnѕwєr

the discovery of pteridophytes (seed bearing ferns) broke down this artificial classification. In 1935, Sinnott introduced term Tracheophyta to include all vascular plants. Tracheophyta are further divided into four main groups : Psilopsida, Lycopsida, Sphenopsida and Pteropsida.

hσpє ít hєlpѕ