what was the plant life in the cambrian period
Algae. Plant life was limited to single and multi-celled green algae during the Cambrian period. Land was still a hostile environment so all plant species evolved in the sea. Single-celled algae grew together in colonies, giving them the appearance of being one plant.ave. The Cambrian period spanned the time between 543 to 490 million years ago. During the four billion years prior to the start of this period, the only life forms that had evolved were plankton, bacteria and multi-celled algae.