dino notes

dino notes - 03/11/08 tetanurae found in rocks from the...

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03/11/08 tetanurae found in rocks from the early Jurassic right up tpo the K-T extinction very diverse clade that includes birds three or less fingers no theeth in back of mouth extra hole lightening skull hind limb even more adapted for running clade allosauroidae=subclade allosaurus "different lizard" late jurasssic, 150-145 ma, 60-70% of all theropods found from its time in NA excellent growth series, youn very fast. so many specimen, % variability due to size (age) has been calculated state fossils of Utah juvenile with scaly skin sjkull a ripper, kinetic like carnotaurus 40 ft long, 2+ tons likely a pack hunte, dash-and-slash style Acroncanthosaurus, Carcharodontosaurus Gin Cleveland-Lloyd dinosaur quarry oxbow lake predator trap 147 ma, lake slowly filled in, later coverted with volcanic ash, shallow sea deposits over 12,000 bones, 2/3 allosaurus also camarosaurus (sauropod),camtosaurus (iguanodant) stegosaurus what Al's brain tell us: hearing very croc like, not good- low frequencies and loud sounds
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dino notes - 03/11/08 tetanurae found in rocks from the...

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