Title: Post Darwinian Developments
1Post Darwinian Developments I. Physics A. The
Age of the Earth
2Post Darwinian Developments I .Physics A. The
Age of the Earth 1. 1862 - William Thompson
- "Lord Kelvin"
3Post Darwinian Developments I. Physics A. The
Age of the Earth 1. 1862 - William Thompson
- "Lord Kelvin" - molten Earth - 7000oF
4Post Darwinian Developments I. Physics A. The
Age of the Earth 1. 1862 - William Thompson
- "Lord Kelvin" - molten Earth - 7000oF -
Fourier analysis of heat loss
5Post Darwinian Developments I. Physics A. The
Age of the Earth 1. 1862 - William Thompson
- "Lord Kelvin" - molten Earth - 7000oF -
Fourier analysis of heat loss - Earth was 100
million years old
6Post Darwinian Developments I. Physics A. The
Age of the Earth 1. 1862 - William Thompson
- "Lord Kelvin" - molten Earth - 7000oF -
Fourier analysis of heat loss - Earth was 100
million years old
- Darwin thought it had to be at least 300
million to allow for evolution to occur.
7Post Darwinian Developments I. Physics A. The
Age of the Earth 1. 1862 - William Thompson
- "Lord Kelvin" 2. 1896 - Henri Becquerel
8Post Darwinian Developments I. Physics A. The
Age of the Earth 1. 1862 - William Thompson
- "Lord Kelvin" 2. 1896 - Henri Becquerel
- discovers emission of Uranium
9Post Darwinian Developments I. Physics A. The
Age of the Earth 1. 1862 - William Thompson
- "Lord Kelvin" 2. 1896 - Henri Becquerel
- discovers emission of Uranium 3. 1903 -
Pierre and Marie Curie - discover emission from
new element - Radium
10Post Darwinian Developments I. Physics A. The
Age of the Earth 1. 1862 - William Thompson
- "Lord Kelvin" 2. 1896 - Henri Becquerel
- discovers emission of Uranium 3. 1903 -
Pierre and Marie Curie - discover emission from
new element - Radium 4. 1904 - Ernst
Rutherford - "The discovery of the radio-active
elements, which in their disintegration liberate
enormous amounts of energy, thus increases the
possible limit of the duration of life on this
planet, and allows the time claimed by the
geologist and biologist for the process of
evolution."
11Post Darwinian Developments II. Geology A. The
Dynamic Earth
12Post Darwinian Developments II. Geology A. The
Dynamic Earth - why do coastlines fit?
13Post Darwinian Developments II. Geology A. The
Dynamic Earth 2. Disjunct Distributions? -
southern beech - marsupial fauna
14Post Darwinian Developments II. Geology A. The
Dynamic Earth Continental Drift - 1915 -
Alfred Wegener
15 - Not accepted until the 1960s and 1970s, when
sea floor spreading was observed, sonar was used
to map the ocean, and paleomagnetism demonstrated
where continents had been in the past relative to
magnetic north.
16 - North and South Atlantic and Indian Ocean
Basins.
17Post Darwinian Developments III.
Paleontology A. Intermediate Fossils
18FISH AMPHIBIANS
Ichthyostega
- Fins and gill covers (FISH) - Feet
(AMPHIBIANS) - After fish, before amphibians
(just where evolution predicts it should be)
XXX
19D. Devonian (417-354 mya) - Placoderms -
Sharks - Lobe-finned Fishes
365 mya
385 mya
20 21Eusthenopteron
22Panderichthys rhombolepis
23Tiktaalik roseae
24Acanthostega gunnari
25Ichthyostega sp.