PPT-Archaeopteryx Missing link between reptiles and birds?

Refutation Two bird species living today the touraco and the hoatzin have claws which allow them to hold onto branches Other toothedbirds are also known to have lived in the same period Asymmetrical feathers prove that it was flying like modern birds. Chapter 6. Neornithes. Modern bird lineage. Approx 10,000 species. Originated 90-100 . Mya. in Cretaceous. Evolutionary History. 150 . Mya. dinosaurs & pterosaurs. 1860: single feather. 1861: skeletal remains. WEBQUEST10. th. grade. Index. Background Information. Introduction. Task. Resources. Time. Process. Conclusion. Rubric. Games. Q. What do dinosaurs have that no other reptiles have?. Background Information. ·Our anatomy resembles the anatomy of other animals.. ·. Some of our features, . . , have similar structure and function of those of other animals.

 . Javier G. Nevarez DVM, PhD. jnevarez@vetmed.lsu.edu. 225-578-9657. It’s all about metabolism!. Immediate Needs. Housing. Food. Housing. Well ventilated. Easy to clean and disinfect. Escape . resistant. Which of the following traits is shared by all vertebrates, at least in some developmental stages, except the lampreys?. notochord. vertebrae. cartilaginous skeleton. cranium (head). mouth with jaws. GROUP DIRECTIONS:. 1. cut out the mystery fossil bones.. 2. as a group, put together the skeleton of the animal.. 3. glue the bones on a large piece of paper.. 4. decide what the outside of the animal looked like. Was it covered with skin, fur, scales, something else? How large was it? What did it eat?. Fully adapted for life on land. All Amniotes – produce Amniotic Eggs. Dry, Scaly Skin. Ectothermic . More Efficient Circulatory and Respiratory Systems. Cloaca . Except for snakes, Reptiles have Paired limbs, most ending in 5 clawed toes . 1. cut out the mystery fossil bones.. 2. as a group, put together the skeleton of the animal.. 3. glue the bones on a large piece of paper.. 4. decide what the outside of the animal looked like. Was it covered with skin, fur, scales, something else? How large was it? What did it eat?. Shore Birds:. Also known as Waders. Feed on abundance of marine life in the intertidal zone. Size varies from as small as a sparrow to larger than a chicken. Group includes oyster catchers, tattlers, curlews, godwits, turnstones, sandpipers, jacanas, surfbird, phalaropes and inland species such as woodcocks. By:Bianca,David,Hector and Halle. Marine Reptiles. -The circulatory systems of reptiles are more advanced than a fishes . -circulation through the lungs is nearly completely separate from circulation through the rest of the body.. Fully adapted for life on land. All Amniotes – produce Amniotic Eggs. Dry, Scaly Skin. Ectothermic . More Efficient Circulatory and Respiratory Systems. Cloaca . Except for snakes, Reptiles have Paired limbs, most ending in 5 clawed toes . Fully adapted for life on land. All Amniotes – produce Amniotic Eggs. Dry, Scaly Skin. Ectothermic . More Efficient Circulatory and Respiratory Systems. Cloaca . Except for snakes, Reptiles have Paired limbs, most ending in 5 clawed toes . Chapter 26 Reptiles and Birds Reptiles Skin is smooth and dry, covered in scales Helps prevent the evaporation of water from its body. First vertebrates with adaptations that enabled them to survive on land only. 26.1 Amniotes. The amniotic sac contains everything an embryo needs to grow.. some develop inside mother’s body. some develop inside a tough, . semipermeable. . shell. The amniotic egg allowed vertebrates to reproduce on land.