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Introduction to Biology II. Biology 1312. Spring 2007. Dr. Brad Hoge. Vertebrates. Chordata. Chordate Characteristics. Notochord Hollow Dorsal Nerve Cord Pharyngeal Slits Muscular, Postanal Tail. Invertebrate Chordates. Urochordata Cephalochordata. Vertebrates. Jawless Vertebrates. - PowerPoint PPT Presentation
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Introduction to Biology IIBiology 1312
Dr. Brad Hoge
Spring 2007
Vertebrates
Chordata
Chordate Characteristics
• Notochord
• Hollow Dorsal Nerve Cord
• Pharyngeal Slits
• Muscular, Postanal Tail
Invertebrate Chordates
• Urochordata
• Cephalochordata
Vertebrates
Jawless Vertebrates
• Myxini (Hagfishes)
• Cephalaspidomorhi (Lampreys)
• Ostracoderms
Condrychthyes
Osteichthyes
Fishes
• Ray-Finned Fish (Actinopterygii)
• Lobe-Finned Fish (Actinistia)
• Lung Fish (Dipnoi)
Tetrapods
Amphibia
• Urodela
• Anura
• Apoda
Amniotes
• Synapsids
• Anapsids
• Diapsids
– Lepidosaurs– Archosaurs
Reptile Groups
• Early Anapsids
• Marine Reptiles
• Dinosaurs
• Pterosaurs
Modern Reptiles
• Testudines
• Sphenodontia
• Squamata
• Crocodilia
Birds
Wings and Feathers
Origin of Birds
Mammals
• Monotremes
• Marsupials
• Placentals
Primates
Humans
To Be Human
• Brain Size
• Jaw Shape
• Bipedal Posture
• Reduced Dimorphism
• Social Structure