This lecture is 55 minutes long and is courtesy of Augustana College.
YouTube description:
"Dr. William Hammer, Fritiof Fryxell Chair in Geology, notes that 1841 marks the dawn of Antarctic exploration. British naval Captain James Ross, commanding HMS Erebus and HMS Terror, discovered what they named the Victoria Barrier, and would later be renamed the Ross Ice Shelf. Hammer is the discoverer of the first dinosaur remains unearthed in Antarctica."