Walking with... Timeline

The timeline of events that happened in the Walking with... series continuity.

Precambrian (4.5 Bya - 541 Mya)

4.5 Billion Years B.C

• The Earth is formed.

Cambrian (541 Mya - 485 Mya)

541 Million Years B.C

• Cambrian Explosion occurs, ushering the start of the Cambrian.

535 Million Years B.C

• Haikouichthys, one of the first vertebrates, appears.

530 Million Years B.C

• The first half of Water Dwellers occurs.

523 Million Years B.C

• First Trilobites appear.

Ordovician (485 Mya - 443 Mya)

488 Million Years B.C

• The Ordovician begins.

Silurian (443 Mya - 419 Mya)

443 Million Years B.C

• The Silurian begins.

Devonian (419 Mya - 358 Mya)

385 Million Years B.C

• Stethacanthus, the iron board Shark, first appears.

Carboniferous (358 Mya - 298 Mya)

358 Million Years B.C

• The start of the Carboniferous.

340 Million Years B.C

• Arthropleura, the giant cousin to the modern centipedes, first appears.

328 Million Years B.C

• Proterogyrinus first appears.

320 Million Years B.C

• Stethacanthus goes extinct.

318 Million Years B.C

• Proterogyrinus goes extinct.

305 Million Years B.C

• The giant Dragonfly Meganeura first appears.

303 Million Years B.C

• Edaphosaurus first appears.

302 Million Years B.C

• Petrolacosaurus first appears.

300 Million Years B.C

• The events of the first half of Reptile's Beginnings occurs.

Permian (298 Mya - 250 Mya)

• Dimetrodon first appears.

280 Million Years B.C

• The second half of Reptile's Beginnings occur.

265 Million Years B.C

• First Gorgonopsids and Therocephalians appear.

259 Million Years B.C

• Diictodon first appears.

255 Million Years B.C

• Lystrosaurus first appears.

254 Million Years B.C

• Diictodon goes extinct.
• Scutosaurus first appears.

250 Million Years B.C

• First half of Clash of Titans occurs.

Triassic (250 Mya - 201 Mya)

248 Million years B.C

• Euparkeria, a relative of Dinosauromorphs, first appears.
• Thrinaxodon, a Cynodont (Which will bring forth Mammals), first appears.
• Second half of Clash of Titans occurs

245 Million Years B.C

• Euparkeria goes extinct.
• Thrinaxodon goes extinct.

241 Million Years B.C

• Lystrosaurus goes extinct.

235 Million Years B.C

• Postosuchus first appears.

228 Million Years B.C

• Placerias first appears.

221 Million Years B.C

• Peteinosaurus, one of the first Pterosaurs, appears.

220 Million Years B.C

• Events of New Blood occur.

216 Million Years B.C

• Coelophysis first appears.

214 Million Years B.C

• Plateosaurus first appears.

210 Million Years B.C

• Sphenodontines, the Tuatara's family, first appears.

Jurassic Period  (201 Mya - 136 Mya)

169 Million Years B.C

• Eustreptospondylus first appears.

165 Million Years B.C

• Ophthalmosaurus first appears.

163 Million Years B.C

• Cryptoclidus first appears.

162 Million Years B.C

• Liopleurodon first appears.

161 Million Years B.C

• Cryptoclidus goes extinct.

157 Million Years B.C

• Metriorhynchus first appears.

155 Million Years B.C

• Allosaurus first appears.
• Dryosaurus first appears.
• Stegosaurus first appears.

154 Million Years B.C

• Sauropods Apatosaurus, Brachiosaurus, and Diplodocus first appears.
• Ornitholestes first appears.
• Eustreptospondylus goes extinct.

153 Million Year B.C

• Brachiosaurus goes extinct.

152 Million Years B.C

• Events of Time of the Titans occur.

150 Million Years B.C

• Pterosaurs Anurognathus and Rhamphorhynchus first appears.
• Ceratosaurus first appears.
• Sauropods Apatosaurus and Diplodocus go extinct.

149 Million Years B.C

• Events of Cruel Sea occur.

148 Million Years B.C

• The Pterosaurs Anurognathus and Rhamphorhynchus become extinct.

145 Million Years B.C

• The Allosaurus Big Al is born.
• Events of The Ballad of Big Al occur.
• Big Al dies from a toe infection.

Cretaceous (136 Mya - 65.5 Mya)

130 Million Years B.C

• Polacanthus first appears.

127 Million Years B.C

• Events of Giant of the Skies occurs.

126 Million Years B.C

• Iguanodon, one of the most famous of dinosaurs, first appears.
• Utahraptor, the largest "raptor" ever discovered, first appears, but shortly goes extinct.

125 Million Years B.C

• Iguanodon goes extinct.
• Polacanthus goes extinct.

112 Million Years B.C

• Ornithocheirus, a pterosaur, appears (Note that it didn't actually appear in the series, another pterosaur, Tropeognthus, went by the name.)

106 Million Years B.C.

• Events of Spirits of the Ice Forest occurs.

67 Million Years B.C.

• Tyrannosaurus rex, the most famous Dinosaur, first appears.

65.5 Million Years B.C

• Events of Death of a Dynasty occurs.
• A massive meteor strikes in the Yucatan peninsula, putting an end to the reign of non avian dinosaurs.

Palaeocene (65.5 Mya - 56 Mya)

56 Million Years B.C

• The bird Gastornis first appears.

Eocene (55 Mya - 33 Mya)

55 Million Years B.C

• Embolotherium first appears.

50 Million Years B.C

• Leptictidium first appears.

49 Million Years B.C

• Godinotia first appears.
• Propalaeotherium, a relative to the modern Horse, first appears.
• Events of New Dawn occur.

45 Million Years B.C

• Andrewsarchus, the largest carnivorous mammal, first appears.
• Gastornis goes extinct.

43 Million Years B.C

• Propalaeotherium goes extinct.

40 Million Years Ago

• Early whales such as Basilosaurus and Dorudon first appear.

36 Million Years B.C

• Apidium first appears.
• Moeritheriumfirst appears.
• Events of Whale Killer occurs.
• Andrewsarchus goes extinct.

33 Million Years B.C

• Moeritherium goes extinct.

Oligocene (33 Mya - 23 Mya)

30 Million Years B.C

• The Whales Basilosaurus and Dorudon become extinct.

25 Million Years B.C

• Events of Land of Giants occurs.

Miocene (23 Mya - 5 Mya)

Pliocene (5 Mya - 3 Mya)

3.8 Million Years B.C

• Events of Next of Kin occurs.

Pleistocene (3 Mya - 11,700 ya)

1 Million Years B.C

• Events of Sabre-Tooth occurs.

30,000 Years B.C

• Events of Mammoth Journey occurs.

Holocene (11,700 ya - Present)

1991 AD

• Big Al 's almost complete skeleton is uncovered in Shell, Wyoming.