HIST-1107EL Study Guide - Quiz Guide: Spirifer, Hydrogen Sulfide, Paleocene
5 Dec 2020
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Document Summary
Silurian, devonian, carboniferous, permian: the precambrian represents 4ga, the cenozoic epochs from oldest to youngest are; palaeocene, eocene, oligocene, Phylogenetics is the study of animal relationships based on genes: the earliest evidence for life comes from carbon isotopes. Greenland are 4. 1-3. 8ga and have a high c12 to c13 ratio, c12 is more commonly produced by living organisms although c13 is stable. The reason for the banding is unknown, it may be seasonal. Austral is southern latitudes and tethyan is tropical/southern: carboniferous ammonoids were goniatites with a simple wavy suture. Ceratitic ammonoids ranged from the late permian to the triassic and are slightly more complex. Defining features of a chordate are a notochord, pharyngeal slits, a dorsal nerve cord and a post-anal tail. Paleobotany is the study of fossilised plants and dendrology is the study of trees: the first animals to live on land were the arthropods (they appear on land around.
