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. Ron Chakrabarty. Mark . Juhn. Daniel Montgomery. Andrew Tung. Amphibians. Family . Amphibia. Amphibians – General/Unique Characteristics. Moist, glandular skin with no scales. Feet lack claws and are often webbed. 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. ·Our anatomy resembles the anatomy of other animals.. ·. Some of our features, . . , have similar structure and function of those of other animals.

 . What is a Reptile?. Reptiles have a well-developed skull, a backbone and tail, four limbs.. Snakes will be limbless and turtles have hard shells that are fused with their vertebrae.. All reptiles have dry, scaly skin, lungs, and eggs on land.. Jessica Brown. Miila. Hall. Cold-blooded. Tetrapods. , four appendages. Considered as the first animals on land with the ability to live and multiply on land (amniotic egg). Amniotic egg- . a shelled, water-like sac that enables reptiles to complete their life cycles on dry land.. Being safe at school, home and on holidays. About Snakes & Other Reptiles. Snakes . and other reptiles . . are not something to be feared, but . rather creatures . to be respected as . . fascinating . 2. Amniotic eggs have . membranes that protect the embryo from . desiccation, cushion the embryo, help with gas exchange, and store waste material.. 3. The amniotic eggs of reptiles and birds also have leathery or hard shells that protect the developing embryo, and a yolk that supplies food to them.. Click Here!. Can any of you . name. these three reptiles?. Objective: Today we are going to learn how to describe three basic characteristics of reptiles. . Click to Check out REPTILES!. Menu. Crocodiles. Justify the statement that “the amniotic egg provided solutions that made development apart from external watery environments possible.”. Compare amniote taxonomy before and after the application of cladistic methods.. Ectothermic. What type of circulatory system do reptiles have. Closed. Most reptiles . are. Carnivores. Herbivores. Isomores. omnivore. A. . Carni. v. ores. Tuatara numbers are decreasing as a result of its habitat being destroyed . 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?. 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 . Birds first appear, unambiguously, in the fossil record in the Jurassic (. ~. 150 mya). First . bird is . Archaeopteryx. .. Transitional form between reptiles and modern birds.. Possessed reptilian skull with teeth, long bony tail, and claws on digits, but had feathers just like modern birds..