Chapter 10: Reptiles and Thermoregulation

Review Questions for Chapter 10

The Reptile Radiation

• Yale's Peabody Museum Panorama from the Permian
• Excellent Background Details from the Permian Panorama
• Permian (and Earlier) Amniotes: Synapsids - Dimetridon and Moschops and Diapsids - Petrolacosaurus and Eudibamus
• An Overview of the Fossil Synapsids from the Russian Dinosaur Exposition Website in St. Louis
• Tree of Life Website Guide to the Synapsids
• Skull Characteristics of Synapsids
• Detailed Account of the Skeletal Novelties of Main Synapsid Lineages
• Children's FAQ on Extinct Synapsids (Mammal-like "Reptiles")
• Douglas Henderson's Cool Illustrations of Permian Reptiles

Pelycosaurs

• American Museum of Natural History Specimen of Dimetrodon with Accompanying Cladogram
• Image of Dimetrodon grandis
• Visual Comparison of Dimetrodon and Edaphosaurus
• Virtual "Devonian Garden" with Dimetrodon and Edaphosaurus (Requires Special Plug-in)
• Painting of Dimetrodon
• Make a Cut-out Dimetrodon
• An Herbivorous Pelycosaur, the Caseid Ennatosaurus

Thermoregulation in Reptiles

• Lecture Notes on Thermoregulation
• Temperature Regulation

Permian Changes

• Permian/Triassic Mass Extinction
• Possible Causes of the Permian/Triassic Mass Extinction
• Implications of Isotope Changes of the Permian/Triassic
• Cool Map of the Late Permian (255 Ma)
• Compare the Permian and Triassic Global Paleogeography or Permian and Triassic Paleogeography of the Southwestern US

Thermoregulation in Therapsids

• Tree of Life Website Guide to the Therapsids (Not much here but useful links 4/03)

Therapsid Evolution

• Cool Map of the Early Triassic (237 Ma)
• Images of Principle Group of Therapsids, the "Beast-Toothed" Theriodonts known as Gorgonopsians: the Large Predator Inostrancevia the Fish-eating Otter-like Annatherapsidus, and the Tiny Insectivorous Silphedosuchus
• News Release for the Discovery of First Complete Fossil Gorgonopsian (250 Ma) or Here
• Images of a Later (Triassic) Group of Theriodonts, the "Dog-toothed" Cynodonts, which is Sister Taxon of Mammals: the Omnivorous Dvinia and the Predatory Cynognathus
• Images of Therapsid Dinocephalians: the Moose-like "Crowned Crocodile" Estemmenosuchus, the Huge Herbivorous Ulemosaurus, and the Saber-Toothed Superpredator Titanophoneus
• Skull Details from Estemmenosuchus
• Images of Herbivorous Therapsid "Two-Fanged" Dicynodonts: Dicynodon and Lystrosaurus
• Douglas Henderson's Illustrations of Lystrosaurus and Other Triassic Reptiles, or Here, Here, or Here
• Ancient Forest Soils Littered with Bones of Lystrosaurus from Early Triassic, South Africa
• Buy Museum-quality Casts of a Synapsids

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