Discovery Miracle Planet Disc 4: Extinction And Rebirth (2005)

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Peter's DVD rating: 4 stars
3:10 Permian limestones mark boundary of Permian extinction 4:00Douglas Erwin (National Museum of Natural History, Smithsonian Institution), Yugan Jin: Early Triassic paper-thin bivalves (NOT crinoids as shown in the caption) indicate low oxygen (Zhejiang Province, southern China) 5:00 2-mile thick lava beneath oil fields due to Permian volcanic eruptions (west Siberia)
10:20 Supercontinent Pangea formed 300 MYA, surrounded by deep ocean trench, causing lava dome to rise 12:00 Drilling for methane hydrate frozen in deep ocean (off Japan) 13:30 carbon 12 released by melting of methane hydrate at Permian boundary indicates global warming and decreased oxygen (Zhejiang Province, southern China)
17:40 Berthierine mineral indicates low oxygen in early Triassic (10%) from death of plants and methane reacting with oxygen (Transantarctic Mountain Range, Antarctica) 19:50 Cynodont managed to survive 20:40Plans and dinosaurs returned
20:50 Apatosaurus 20:55 Allosaurus 23:00 Dinosaurs had air sac respiratory system like birds for efficient breathing in low oxygen
29:20 Thrinaxodon ribcage covered only its chest, can support a diaphram for breathing, and twist for nursing 32:00 Mammal mother and offspring fossil side by side indicated care of young (South Africa) 32:40 Mammal fossil with placenta 125 MYA (China)
34:50 Asteroid strike wiped out dinosaurs 65 MYA 37:10 Carpolestes had opposable thumb like primates 56 MYA 38:20 Diatryma was a ferocious predator, almost 2 meters tall (Europe and Americas, Africa, Antarctica, but not Asia)
44:10 Hyaenodontids predatory mammals had 3 sets of teeth and were fast runners; evolved in Asia 46:00 After ice melted, mammals moved across land bridge to North America; Hyaenodontids hunted down Diatryma   
Permian limestones
3:10 Permian limestones
bivalves
4:00 paper-thin bivalves
Permian eruptions
5:00 2-mile thick lava beneath oil fields due to Permian volcanic eruptions
Pangea
10:20 Supercontinent Pangea
lava dome
10:20 lava dome
methane hydrate
12:00 Drilling for methane hydrate
carbon 12
13:30 carbon 12
methane hydrate
13:30 melting of methane hydrate
berthierine
17:40 Berthierine mineral
oxygen
17:40 low oxygen in early Triassic (10%)
Cynodont
19:50 Cynodont
dinosaurs
20:40 dinosaurs
Apatosaurus
20:50 Apatosaurus
Allosaurus
20:55 Allosaurus
air sacs
23:00 Dinosaurs had air sac respiratory system
Thrinaxodon
29:20 Thrinaxodon
mammal fossil
32:00 Mammal mother and offspring fossil side by side
mammal placenta
32:40 Mammal fossil with placenta
asteroid strike
34:50 Asteroid strike
Carpolestes
37:10 Carpolestes
thumb
37:10 opposable thumb like primates
Diatryma
38:20 Diatryma
Hyaenodontids
44:10 Hyaenodontids
land bridge
46:00 After ice melted, mammals moved across land bridge
Hyaenodontids Diatryma
46:00 Hyaenodontids hunted down Diatryma
   

Index Feb 21, 2010 CC BY 4.0 Peter Chen 2.0