Synapsids Anapsids Diapsids

?

Lepidosaurs Archosaurs

Fig 12-3

Extinct Lepidosaurs

Ichthyosaurs

Plesiosaurs

Mosasaurs

Living Lepidosaurs - Sphenodontids - the tuatara of New Zealand

Living Lepidosaurs Squamates – Lizards, snakes and amphisbaenians Fig 13-1

Iguanas, chameleons, agamids

Skinks, alligator lizards,Snakes, amphisbaenians,Varanids, gila monsters,geckos

“Lizard” Locomotion

“Lizard” Feeding See this site: http://jan.ucc.nau.edu/~kiisa/lizardmovies.html

Lizard foraging mode and ecological/morphological traits Table 13.5

Sit and waitMitochondria, etc

Widely foragingMitochondria, etc

Horned lizard Whiptail

Where would Gila monsters fit?

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 ________________________________

Challenges of tubular body - getting enough food down a small mouth

2 Solutions

Subduing large prey when you have no limbs

Opisthoglyphous

Solenoglyphous

Proteroglyphous

“Lizard” reproduction