Plants that lived in the Mesozoic era include cycads, cycadeoids, ginkgoites, ginkophytes, conifers, glossopterids and angiosperms. At the beginning of the Mesozoic era, gymnosperms were dominant. At the end of the era, angiosperms started appearing.
The Mesozoic era is divided into three periods that saw the rise of many different types of plants. The first two periods, the Triassic and Jurassic periods, saw the rise of gymnosperms, which are plants that don't have seeds in their flowers, such as pine trees. During the Triassic period, 20 percent of the world's flora were cycads. Currently, there are only a few species of cycads left in the world. The glossopterids thrived during this time, though they became extinct before the Jurassic period.
During the Jurassic period, cycads still flourished, having many features of modern-day ferns. The cycadeoids also developed during the Jurassic period, and these plants were much like cycads but had some distinct reproductive differences. Ginkgophytes, which started right before the Mesozoic, began to diversify into 11 different species. Conifers also began to grow and spread.
The last period of the Mesozoic era, the Cretaceous period, saw the rise of angiosperms, or flowering plants. Today, most of the plant life on Earth is classified as angiosperms.