1. Members: Elan Reyes Steffani Zelaya CRETACEOUS PERIOD

2. GEOLOGIC EVENTS it belongs to the Mesozoic Era ( 245 – 66 million years ago ) Continets move toward their position as south america splits from africa. Widespread volcanic activity occurs

3. DEVELOPMENT OF LIFE First flowering plants appear. Dinasours, including Tyrannosaurus rex, dominiate. First snakes appear. Mass extintion Mass extintion at end of period causes disappearance of many land and marine life forms, including dinasours

4. EVOLUTIONARY CHANGES Evolution in plant life, specifically flowerplants related to these appeared: Willow,Elm,Grape,Birch,Maple,Grass,SequoiaTree Insects :a form of a dragonfly Invertebrates: Nautilus,Sea Urchins Reptiles: Crocodiles, GiantTurtle No Mammals in this period Terrestrial organisms: arthropods(flies)

5. PLANTS ANIMALS AND OTHER ORGANISMS Paleontologists are constantly finding new information and artifacts.Theknowledge base grows all the time. There are active digsites around the world finding new information to study about plants and animals from the Cretaceous period. Amateurs find importantant fossils and help to bring additional information to the scientists

6. CLIMATE AND GEOGRAPHY During the early Cretaceous period, the inexorable breakup of the Pangaean supercontinent continued, with the first outlines of modern North and South America, Europe, Asia and Africa taking shape. Conditions were as hot and muggy as in the Jurassic,