'Tetrapods' presentation slideshows

PHYLUM CHORDATA SUBPHYLUM VERTEBRATA A SURVEY OF DIVERSITY

PHYLUM CHORDATA SUBPHYLUM VERTEBRATA A SURVEY OF DIVERSITY. BIO 122: Zoology Part 2 Amphibians, Reptiles & Birds. CLASS AMPHIBIA. Amphibians : include frogs, toads, salamanders & others Tetrapods (4 legs) Have a gelatinous egg covering Have a 3-chambered heart 2 atria, 1 ventricle.

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Amphibians Class Amphibia

Amphibians Class Amphibia. Amphibians. Animals that can live on land and in water Chinese Giant Salamander. Amphibians. First animals with four limbs Tetrapods : vertebrates that have four limbs. Acanthostega. Found in 360 million year-old rocks in Greenland

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Respiratory System

Respiratory System. Forms as an outpocketing from the pharynx region of the digestive tract Embryonically , all vertebrates possess a series of paired outgrowths of the gut tube projecting laterally to meet the ectoderm of the body wall.

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The Vertebrate Skull:

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Class Amphibia

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Tracing E volutionary History

Tracing E volutionary History. CHAPTER 15. 15.1. Fossils chronicle the evolutionary timeline Eras in geologic time Precambrian Paleozoic Mesozoic Cenozoic. Precambrian Era. 4.6 billion ya - 542 mya First fossils- prokaryotic cells (3.5 billion ya )

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Tetrapods: Origins & Radiation PART II

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Skeletal System I Axial Skeleton

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Chapter 33 Deuterostome Animals

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The Mississippian Period

The Mississippian Period . By Haillie Rost and Jenna Gordon . The Mississippian Period Time Span . The time span of the Mississippian period was about 35 million years and it lasted from 320 million years ago to 360 million years ago.

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Mammal-Like Reptiles

Mammal-Like Reptiles. Excavating Vertebrate Fossils Jeff Good. http://www.rareresource.com/photos/dinosaur-gallery/Dimetrodon5.jpg. Synapsids. Ancient ancestors of mammals Temporal fenestra Heterodont Fewer bones in jaw then reptiles Includes the Pelycosaurs and Therapsids.

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Prehistoric Sharks

Prehistoric Sharks. By Kelsey Hayes . How do we define sharks ?. sharks are a suborder of fish whose skeletons are made out of cartilage rather than bone distinguished by their streamlined , hydrodynamic shapes , sharp teeth , and sandpaper-like skin .

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Tetrapods: Origins & Radiation PART III

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Gradualism

Gradualism . One of the major components of the theory of evolution is that most changes happen slowly and that (thankfully) the earth has been around for a long time. Yet fully appreciating geological time is tricky.

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Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES

Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES. Fishes are related to tetrapods. Lungfishes are like Tetrapods: Has a separate blood circuit to the lungs. Skull bones are arranged in the same way as the fishes and so is the tooth enamel.

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