2:11:54

Lecture 20 – Cenozoic Life

2:14:00

Lecture 12 - Precambrian Earth and Life History The Hadean and the Archean Eon

30:03

Silk Road Sunken Treasures

59:40

Lecture 13 – Precambrian Earth and Life History The Proterozoic Eon Part 1

2:00:38

Lecture 5 - Plate Tectonics

1:19:24

Lecture 16 - Mesozoic Earth History Part 1

2:11:10

Lecture 19 – Cenozoic Earth History Quaternary Version 2

1:09:19

Lecture 14 - Paleozoic Earth History Part 1