Summary of Paleozoic Bioevents
Invertebrates
Vertebrates
Plants
Permian: Large mass extinction event affect the invertebrates
-------------

Pennsylvanian: Fusulinids (Protista, foraminifera) diversiffy

-------------

Mississippian: Crinoids, bryozoans, and blastoids become abundant

Renewed adaptive radiation following the extinction of reefs

-------------
Devonian: Extinction of may reef building invertebrates near the end of Devonian

Reef building continues

Eurypterids abundant

-------------

Silurian: Major reef building

Diversity of Invertebrates remains high

-------------

Ordovician: Extinctions of a number of marine invertebrates near the end of the Ordovician

Major adaptive radiation

Suspension feeders dominant

-------------

Cambrian: Many trilobites becomes extinct near the end of the Cambrian 

Trilobites, brachiopods, and archaeocyathids are abundant

Permian: Acanthodians, placoderms, and Pelycosaurs become extinct

Therapsids and Pelycosaurs are the dominant reptiles

-------------

Pennsylvanian: Amphibians abundant and diverse 

-------------

Mississippian: Reptiles evolve

-------------

Devonian: Age of Fish. All major groups of fish are present

-------------

Silurian: Ostracoderms common

Acanthodians: first jawed fish evolve

-------------

Ordovician: Ostracoderms diversify

-------------

Cambrian: Earliest vertebrates: jawless fish called ostracoderms

Permian: Gymnosperms diverse and abundant
-------------

Pennsylvanian: Coal swamps with flora of seedless vascular plants and gymnosperms

-------------

Mississippian: Gymnosperms appear: many have evolved during the upper Devonian?

-------------

Devonian: First seeds evolve

-------------

Seedless vascular plants diversify

-------------

Silurian: Early plants: seedless vascular plants

-------------

Ordovician: Plants move on land

-------------