Week 8: Reptile and Dino

• REPTILIAN BREATHING

  Aspiration pumping:

  • Air is no longer forced into lungs.
  • Buccal cavity no longer used to pump
  • Air pumped into lungs:
  • Glottis opens to trachea
  • Remains closed except in breathing
  • Separates respiratory apparatus from feeding apparatus
• Infraphylum Agnatha


  Jawless vertebrates

  
• Infraphylum Agnatha

  Ordovician Period, Paleozoic Era
• Ostracoderms

  • Cambrian Period; extinct
• Cyclostomes

  • Ordovician; living
• Class Myxini

  Infraphylum Agnatha
• Class Petromyzontiformes

  Infraphylum Agnatha
• Superclass Gnathostomata


  Jawed vertebrates

  
• Superclass Gnathostomata

  Ordovician/Silurian Period, Paleozoic Era

  
• Class Acanthodii

  • Ordovician Period; extinct
• Class Placodermi

  • Silurian Period; extinct
• Class Chondrichthyes

  Superclass Gnathostomata
• Class Chondrichthyes

  Ordovician
• Subclass Elasmobranchii

  Class Chondrichthyes
• Subclass Holocephali

  Class Chondrichthyes
• Class Osteichthyes


  Superclass Gnathostomata
• Class Osteichthyes

  Silurian
• Subclass Actinopterygii

  Class Osteichthyes
• Subclass Sarcopterygii

  Class Osteichthyes
• Superorder Rhipidistia

  Subclass Sarcopterygii
• Superorder Rhipidistia

  Devonian
• Class Amphibia

  Superclass Gnathostomata
• Subclass Labyrinthodontia

  Class Amphibia
• Order Icthyostegalia


  Subclass Labyrinthodontia
• Order Temnospondyli


  Subclass Labyrinthodontia
• SUBCLASS LISSAMPHIBIA

  ~200 MYA
• Subclass Lissamphibia

  Class Amphibia
• Order Gymnophiona

  Subclass Lissamphibia
• Order Urodela

  Subclass Lissamphibia
• Order Anura

  Subclass Lissamphibia
• AMNIOTES

  ~Carboniferous
• Class Reptilia

  Carboniferous, living
• Subclass Mesosauria

  • Carboniferous; extinct

  
• Subclass Parareptilia

  • Permian; extinct
• Subclass Eureptilia

  Class Reptilia
• Radiations

  Birds, reptiles, dinosaurs
• Infraclass Archosauromorpha

  Class Reptilia

  
• Superorder Archosauria

  Infraclass Archosauromorpha

  
• Order Crocodylia


  Superorder Archosauria

  
• Order Pterosauria


  Superorder Archosauria