Page 110 - The Restless Earth Fossils

index 10

by carbonization, 27–28 Sprigg, Reg, 54
low temperatures and, 23–24 Steno, Nicolaus, 9, 12, 14
by mummification, 24–25 Sternberg family, 30–31
in tar pits, 25, 27 Stewart, John, 18
principle of original horizontality, 14 strata and fossils, 41
principle of superposition, 14 stromatolites, 52, 54
The Principles of Geology (Lyell), 40 superposition, principle of, 14
Proterozoic Era, 54 Sykes, Brian, 88
Protoceratops, 11
pseudomorphs, 32 T
Psittacosaurus, 11 T. rex and the Crater of Doom
Purgatoire River, Colorado, 34 (Alvarez, Walter), 64
pygmy race fossils, 19–20, 84–85 tar pits, 25, 27, 61
teeth, 12
R temperatures, 23–24, 44–47
radioactivity, 45–47 Terrible Lizard (Cadbury), 15
radium, 45–47 Tertiary Period, 52, 63
Rancho La Brea Tar Pits, 27, 61, 77 tetrapods, 55
recordkeeping, 73 Theory of the Earth (Hutton), 38
relative time, 43 theropods, 34
replacement, 29–32 Thompson, William, 45, 46, 47
Rich, Thomas, 75 time
Rocky Mountains (U.S.), 61 absolute scale for, 44
Roman Catholic Church, 9, 14 geological divisions, 47, 50–51
Romans, ancient, 8, 9 index fossils as markers of
Royal Saskatchewan Museum, relative, 43
Canada, 36 Toba eruption, 89
Rutherford, Ernest, 45–47 tongue stones, 12
Rynie, Scotland, 55 trace fossils, 33–34
tracks
s casts of, 34
Sadiman (volcano), 83 dinosaur, 34, 36, 71
sandstone formations, 34, 71 hominin, 82, 83–84
sauropods, 34, 59 Triassic Period, 52
search image development, 69 Triceratops, 36
The Seashell on the Mountaintop trilobites
(Cutler), 9 evolution of, 55
seashells, 12–14 as index fossils, 43
sedimentary rocks, 47 molds of, 32–33
sedimentation, 41 Troll, Ray, 71
See also deposition Tyrannosaurus rex, 36
sediments and water, 14 Tyson, Edward, 80
shale layers, 27
Shark Bay, Australia, 54 U
shells, 12–14, 32 Under a Green Sky (Ward), 64
Sloan, Christopher, 82–83 Uniformitarianism, 40–41
sloth skeletons, 25 United States Geological Service
Smith, William, 41–42 (USGS), 43, 67
Smithsonian Intimate Guide to Human United States Geological Surveys, 18
Origins (Sloan), 82–83 uplift, 40, 41
snakestones, 15 uranium, 45, 46–47

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