Skala waktu geologi: Perbedaan antara revisi

| rowspan="3" | [[Lycopodiophyta|pohon primitif ]] Besar, first [[Tetrapoda|land vertebrates]], and amphibious [[eurypterid|sea-scorpions]] live amid [[coal]]-forming coastal [[brackish water|swamps]]. Lobe-finned [[rhizodont]]s are big fresh-water predators. In the oceans, early [[Chondrichthyes|sharks]] are common and quite diverse; [[echinoderm]]s (esp. [[crinoid]]s and [[blastoid]]s) abundant. [[Coral]]s, [[bryozoa]], [[Goniatitida|goniatites]] and brachiopods ([[Productida]], [[Spiriferida]], etc.) very common. But [[Trilobit|trilobitestrilobit]]es Dan [[nautiloid]] decline. [[Glasiasi]] Di Timur [[Gondwana]].