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Synapsids Anapsids Diapsids ? Lepidosaurs Archosaurs Fig 12-3
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Extinct Lepidosaurs Ichthyosaurs Plesiosaurs Mosasaurs
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Living Lepidosaurs - Sphenodontids - the tuatara of New Zealand
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Living Lepidosaurs Squamates – Lizards, snakes and amphisbaenians Fig 13-1 Iguanas, chameleons, agamids Skinks, alligator lizards, Snakes, amphisbaenians, Varanids, gila monsters, geckos
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“Lizard” Locomotion
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“Lizard” Feeding See this site: http://jan.ucc.nau.edu/~kiisa/lizardmovies.html
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Lizard foraging mode and ecological/morphological traits Table 13.5 Sit and wait Mitochondria, etc Widely foraging Mitochondria, etc Horned lizard Whiptail Where would Gila monsters fit?
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1.A sit and wait predatory lizard would likely be territorial/nonterritorial, And would have more/less mitochondria than a wide-ranging lizard. 2.Gila monsters cool their body through evaporative cooling from what structure? 3.What is the function of the left-to right shunt in a turtle? 4.How does a turtle cause blood to shift from left to right? 5.Nest predation in painted turtles was related to rainfall. When there was lots of Rain, nest predation was higher/lower, presumably because _____________ ___________________
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Challenges of tubular body - getting enough food down a small mouth 2 Solutions
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Subduing large prey when you have no limbs Opisthoglyphous Solenoglyphous Proteroglyphous
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“Lizard” reproduction
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