Chapter 34

Subphylum Vertebrata

Chordate features as well as:

  1. Vertebral column
    • Series of cartilaginous or bony elements
  2. Cranium
  3. Endoskeleton or cartilage or bone
  4. Hox genes (lots of them)
  5. Neural crest

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Cyclostomes

Class Myxini

Class Cephalospidomorphi

Class Chondrichthyes

Class Osteichthyes

Tertapod: Gnathastomes

Class Amphibia

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Order Anura

Order Apoda

Order Urodela

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Amniotes

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Other Key Innovations of the Amniotes

Class Reptilia

Vertebrate Reproductive Modes

  1. Oviparous
    • Egg laying outside of the body
  2. Ovoviviparous
    • live baring wuth retention of eggs
    • No maternal connection
  3. Viviparous
    • live bearing with egg retained
    • Maternal connection

Class Aves

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Endothermic

Ectothermic

Class Mammalia

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Distinguishing Characteristics

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Order Primates

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Taxonomy of Humans


Revision #9
Created 28 January 2019 06:45:47 by Aaron Kimbrell
Updated 1 April 2019 05:09:42 by Aaron Kimbrell