ANTH 011 Lecture Notes - Lecture 21: Principle Of Faunal Succession, Biological Anthropology, Relative Dating
29 Sep 2020
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Blue bone (bottom of mountain) is older than the red bone (top of mountain) If you go out and you find rock layers that are at a 45 degree angle says that"s not how those were laid down. If rock layers are at 45 degrees they must not have occurred like that. Layers must have originally been horizontal but then later tilted. Sediments are laid out in laterally continuous sheets. Only later earth processes broke them up. Looking at a lake basin from the side and you cut it in half. Younger layers get laid on top of older layers. If your laying down layers and layers the newer layers are on the top and the older layers are on the bottom. Accumulated paleontological knowledge about when and where fossils occur. How we can use the known ranges of fossil record to find how old other fossil are. Know the known ranges of species and compare.
