class Pteridospermopsida

ریشه

From the Greek words 'pteris' meaning 'fern', 'sperma' meaning 'seed', and the Latin word 'opsida' meaning 'appearance'.

مثال

• Fossils of plants belonging to the Class Pteridospermopsida have been found in Carboniferous and Permian rock formations.
• The Class Pteridospermopsida is known for its fern-like leaves and reproductive structures.
• Pteridospermopsida plants were seed plants that resembled ferns.