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Overview of Vertebrate and Invertebrate Chordates: From Tunicates to Mammals

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This comprehensive overview explores the various sub-phylums of chordates, including Urochordata (tunicates), Cephalachordata (lancelets), and Vertebrata, which encompasses a wide array of animals such as jawless fish, bony fish, amphibians, reptiles, birds, and mammals. Notable classes include Myxini (hagfish), Cephalaspidomorphi (lampreys), Chondrichthyes (sharks, rays, skates), and Osteichthyes (bony fish). Each group demonstrates unique adaptations, such as the double life of amphibians and the warm-blooded nature of mammals.

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Overview of Vertebrate and Invertebrate Chordates: From Tunicates to Mammals

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  1. Wakefield 2011-2012

  2. Sub-Phylum Urochordata(means tail-cord) • Tunicates • Sea Squirts

  3. Sub-Phylum Cephalachordata(means head-cord) • Lancelets

  4. Sub-Phylum Vertebrata • Super-Class Agnatha – means without jaws • Class – Myxini- (Hagfish) • Means slime • Class – Cephalaspidmorphi(Lampreys) • Means head shield form

  5. Sub-Phylum Vertebrata • Class Myxini • Hagfish

  6. Sub-Phylum Vertebrata • Class Cephalaspidomorphi • Lampreys

  7. Sub-Phylum Vertebrata • Super-Class Gnathostomata • Means jawed mouth • Class Chondrichthyes • Class Actinopterygii • Part of Osteichthyes • Class Sarcopterygii • Part of Osteichthyes • Class Amphibia • Class Reptilia • Class Aves • Class Mammalia

  8. Sub-Phylum Vertebrata • Class Chondrichthyes • Cartilaginous Fish • Sharks, Skates, Rays, Chimaeras

  9. Sub-Phylum Vertebrata • Class Actinopterygii • (Part of Osteichthyes – bony fish) • Ray Finned Fish

  10. Sub-Phylum Vertebrata • Class Sarcopterygii • (Part of Osteichthyes – bony fish) • Lobe Finned Fish • Example - Coelacanth

  11. Sub-Phylum Vertebrata • Class Amphibia • Means Double Life • Examples - • Frogs, Toads & Salamanders

  12. Sub-Phylum Vertebrata • Class Reptilia • Means To Creep • Examples – • Turtles, Lizards, Snakes, Alligators, Crocodiles

  13. Sub-Phylum Vertebrata • Class Aves • Means To Fly • Examples – • Birds

  14. Sub-Phylum Vertebrata • Class Mammalia • Means Breast Animal

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