The Paleozoic
Import from Icebergcharts.com (old website).

Trilobites
Permian triassic extinction
Cambrian explosion
Anomalocaris
Dimetrodon
Placoderms
Brachiopods
Crinoids
Giant insects
Tiktaalik
Sea scorpions
Great Ordovician biodiversification event
Capitanian extinction
Ordovician-Silurian extinction
Conodonts
Tully monster
Paleozoic evoluionary fauna
Carbeniferous rainforest collapse
Blastoids
Tabulates
Stenolaemata
Graptolites
Rugose corals
Ostracoderms
Isoxys
Cystoids
Saccorhytida
Hyoliths
Paleo-tethys
Megacheira
Fusulinids
Paleodictyon
Paleozoic ammonoids
Lapetus ocean
Taghanic event
Palaeonisciformes
Eocrinoids
Archaeochyatha
Edrioasteroidea
Romer's gap
Hederellids
Stromatoporoids
Acanthodii
Silurian minor extinctions
Typhloesus
Protocoleoptera
Thylacocephala
Paleozoic stomatopods
Giuyu oneiras
Euthycarcinoidea
Qikiqtania
Ediacaran survivors
Parablastoids
Paterinata
Paracrinoids
Timerellida
Bear gulch
Bradoriida
Bellerophontida
Serpukhovian extinction
Dasberg event
Gogo reef
Ceratid takeover of Ammonoid fauna
Tomotiids