Diplocaulus Magnicornis Diplocaulus Was a Large Newt-Like Time: 300-250 Million Amphibian That Lived Between 300 and Years Ago 250 Million Years Ago

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Diplocaulus Magnicornis Diplocaulus Was a Large Newt-Like Time: 300-250 Million Amphibian That Lived Between 300 and Years Ago 250 Million Years Ago

Crazy Creatures Diplocaulus magnicornis Diplocaulus was a large newt-like Time: 300-250 million amphibian that lived between 300 and years ago 250 million years ago. Diplocaulus was similar to many Period: Carboniferous amphibians living today. It could live on land and in water. It was around 1m long, The making it much larger than most Boomerang amphibians today, and had a very unusual head! Newt Your task 1: Draw Diplocaulus. It had: A bony head shaped like a boomerang A cylindrical body A long thin tail Smooth skin Your task 2: Diplocaulus was an amphibian. How many other amphibians alive today can you name? Creature Fact! Your task 3: Humans use objects with similar shapes to Diplocaulus' head to help them move quickly on top of water. Diplocaulus What might these be? swam using a Hint:something you might take to the very long flexible beach tail – moving a bit like an Eel does today! Your task 4: Diplocaulus had a very unusual head with two long horns or bony lumps at the back of it's skull. With little eyes and tiny nostrils this gave it a very strange face! Draw a close up here! Your task 5: What kind of things do you think Diplocaulus would have eaten? Your task 6: We know Diplocaulus was an amphibian. Do some research to find out 4 facts about how amphibians live. Diplocaulus might have lived the same way! 1. 2. 3. 4. Research key words: Amphibian Salamander Vertebrate Tetrapod CRAZYOMETER! How weird do you think this creature was? Boring! Yeah Ok A bit weird Really weird! Woah! By Camelops - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=56961326.

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L IBHAHY OF THE UNIVERSITY Of ILLINOIS a 550.5 FI o v.10.11 Gtoioii* UNIVERSITY OF ILLINOIS LIBRARY ATURBANA-CHAMPAIGN GEOLOGY Return this book on or before the Latest Date stamped below. GEOLOGY LIBRARY University of Illinois Library 198 III sm »ah»§ \ \ 0EC2 9ti«8 ^ FEB 3 1967 MAY 172004 ml l*W JUL j j JS68 1972 NOV 2 ')98fi nvjf 1980 •f 5V Wj« 982 L161—H41 DIPLOCAULUS A STUDY IN GROWTH AND VARIATION EVERETT CLAIRE OLSON Research Associate, Division of Paleontology Associate Professor of Vertebrate Paleontology, University of Chicago FIELDIANA: GEOLOGY VOLUME 11, NUMBER 2 Published by CHICAGO NATURAL HISTORY MUSEUM JANUARY 12, 1951 IHfc LMRART OF WE FE* H u51 PRINTED IN THE UNITED STATES OF AMERICA BY CHICAGO NATURAL HISTORY MUSEUM PRESS CONTENTS PAGE List of Illustrations 59 List of Tables 59 Introduction 61 I. Problems and Methods 65 General Problems 65 The Problem of Measurements 76 Effect of Asymmetry of the Skull 87 II. Review of Diplocaulus 89 Homologies of the Dermal Elements 89 Review of Named Species of Diplocaulus 91 III. Species and Genus 95 Species 95 Analysis of Characters 96 The Bearing of Ecological Considerations on Group Differentiation . 104 Taxonomy 110 Genus 113 Introduction and Methods 113 Analyses of Diplocaulus 116 Comparison of Genera 119 IV. Growth and Variation 133 Methods 133 Growth of Skull 136 Analysis of Growth 136 Discussion of Changes in Skull Shape 140 The Problem of Variability 144 References 149 57 LIST OF ILLUSTRATIONS PLATES 1-6. Diplocaulus magnicornis Cope. 7. Diplocaulus brevirostris sp. nov. TEXT FIGURES PAGE Scatter diagrams of Tests 1 to 3 77 Scatter diagrams of Tests 4 to 7 78 Scatter diagrams of Tests 8 to 12 79 Scatter diagrams of Tests 13 and 14 80 Scatter diagrams of Tests 15 to 18 81 Scatter diagrams of Tests 19 to 21 82 Scatter diagrams of Tests 22 to 24 83 Scatter diagram of ratios of Ski/Pmxi on Ski 99 Scatter diagram of Ski/Hi on Ski 101 Mean growth stages of Diplocaulus reconstructed from estimating equa- tions.
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