12_Vertebrates - Instruction: View full-screen images in...

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Unformatted text preview: Instruction: View full-screen images in the Slide Show mode of display. Read the explanatory notes in the Normal View mode of display. FINISH Chapter 15. Next lecture: begin Chapter 16. Bony fish Tetrapods (amphibians) GEOLOGIC HISTORY OF VERTEBRATES (continued) synapsids flying reptiles Mammals Birds swimming reptiles dinosaurs Reptiles New Features: enamel scales, internal bony skeleton Feeding Habits: various Dominant during: late Phanerozoic time Examples: most modern fish Jawed Fish: Bony Fish ossified vertebrae Jawed Fish: Bony Fish: Ray-finned Fish rays of bones in fins highly successful today 99.9% of modern species Coelacanth Jawed Fish: Bony Fish: Lobe-finned Fish bony stump in the fin, some species with lungs mid-Paleozoic through today (Figure 15-12) ray-fin lobe-fin Bony fish Tetrapods (amphibians) GEOLOGIC HISTORY OF VERTEBRATES (continued) synapsids flying reptiles Mammals Birds swimming reptiles dinosaurs Reptiles Tetrapods tetrapods : 4-limbed vertebrates and their descendents...
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This note was uploaded on 02/25/2011 for the course GEO 303 taught by Professor Leon during the Spring '08 term at University of Texas.

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12_Vertebrates - Instruction: View full-screen images in...

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