Life in the Cambrian & Ordovician ~542-444 mya | GEO GIRL
19:06
Geology of the Cambrian & Ordovician 542 - 444 Mya | GEO GIRL
21:53
When Diversity of Life on Earth Tripled! GEO GIRL
19:23
Life Before Mammals in the Late Paleozoic Era (When Animals Moved to Land!) | GEO GIRL
11:58
From the Cambrian Explosion to the Great Dying
26:17
Snowball Earth or Slushball Earths? 3 times Earth was covered in ice | GEO GIRL
20:48
Marine Life in Triassic & Jurassic / Why Life Recovered Slowly After Permian Extinction | GEO GIRL
1:15:11
Extraordinary soft-bodied fossils highlight the Cambrian explosion
24:12