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