User:Nataliaalvarez583/Terrestrial ecosystem

Size and plants[edit]
Main article: Global biodiversity

Terrestrial ecosystems occupy 55,660,000 mi2 (144,150,000 km2), or 28.26% of Earth's surface. Major plant taxa in terrestrial ecosystems are members of the division Magnoliophyta (flowering plants), of which there are about 275,000 species, and the division Pinophyta (conifers), of which there are about 500 species. Members of the division Bryophyta (mosses and liverworts), of which there are about 24,000 species, are also important in some terrestrial ecosystems. Major animal taxa in terrestrial ecosystems include the classes Insecta (insects) with about 900,000 species, Aves (birds) with 8,500 species, and Mammalia (mammals) with approximately 4,100 species.

Common Types of Terrestrial Plants
Four main groupings for terrestrial plants are bryophytes, pteridophytes, gymnosperms, and angiosperms, have been existing for many years and have allowed diversity into our ecosystems.