dnsr notes 22 Word Scramble
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Question | Answer |
What percentage of species in the ocean disappeared from the end-Triassic extinction? | 50% and over |
Which of the non-dinosaurian archosaurs lived through this extinction? | Crocodyliforms |
What does CAMP stand for and what happened there? | Central Atlantic Magmatic Province. Flood lavas happened. |
What was Pangaea doing during the Jurassic period? | Pangaea began to break apart leading up to the fragmented continents we see in the cretaceous and today. |
What helped Pangaea break up? | extensive rifting and volcanism |
The complex nature of the movements of continental plates resulted in periodic flooding of lower parts of the continents with shallow ----. (Shallow sea) | Epieric Seas |
What times in the Jurassic were covered with sand seas? What were these sand seas called? | Early and middle Jurassic. Ergs (Large sand dune) |
What stones came out of these ergs? | Wingate, Navajo, and Entrada sandstones. |
What happened to the ergs? | They were covered by shallow oceans |
Most of western North America was covered with broad semi-arid riverplain that produced sediments of what formation? | The Late Jurassic Morrison Formation |
What happened to the climate as Pangaea fragmented? | The large bodies from rising sea levels of water helped regulate temperature |
What caused rising sea levels? | The absence of polar ice caps and glaciers |
Which continents were flooded? | North America, Europe, and North Africa |
During the middle and late Jurassic, how was the climate? | Warm, equable though semi-arid climates. Not a lot of strong seasonality and temperatures due to the high sea levels. |
What plants were in the Triassic? | cycads, conifers, and ginkgoes. Ferns were abundant and to a lesser extant, seed-ferns |
What type of plant dominated? | Gymnosperms including conifers, club mosses, moss, cycadophytes |
What happened to herbivorous dinosaurs after the Triassic extinction? | They diversified and some reached gigantic size |
What happened to carnivorous dinosaurs? | Diversify and some grow quite large |
What "bit players" did the Jurassic ecosystem consist of? | insects, frogs, salamanders, turtles, lizards, snakes, crocodiles, small mammals. |
What insects lived in the Jurassic? | Leafhoppers, sawflies, plant bugs, and butterflies |
During the Jurassic, what happened to pterosaurs? What are the groups? | They greatly diversified into two different types. Rhamphorhyncoids, which have a long tail, and pterodactyloids, which have a short tail. |
When did Archaeopteryx appear? | Late Jurassic |
What developed in shallow, warm seas? | Coral reefs which marine ecosystems were based off of. |
What kind of animals lived in the coral reef? | bony fish and ammonites |
Which theropods lived in the Jurassic? | Ceratosaurs, allosaurs, and coelurosaurs |
Who were the "megaherbivores"? | Sauropods and they were the dominant primary consumer |
When did true sauropods appear? | Early Jurassic |
Which dinosaur groups started to appear in the Jurassic? | Thyreophorans and eventually the first stegosaurs and anklyosaurs. |
Which ornithiscian species were successful during the Late Jurassic? | Ornithopods such as camptosaurus, dryosaurus and othnellia |
What did sauropods develop to still digest plants that held chemicals? | gastric mill (elongate gastrointestinal track, including a large stomach in the front, and a vast intestine in the rear. Long digestion times and large bodies may have helped. |
Which herbivores lived during the Jurassic? | Large: some sauropods (brachiosaurus camarasaurus) - high browsers Medium: ornithopods (Camptosaurus, Othnellia) Stegosaurs (Stegosaurus) |
Which carnivores lived during the Jurassic? | Theropods (Allosaurus, ceratosaurus, and torvosaurus Medium and small: small theropods (marshosaurus, stokesosaurus, Ornitholestes) crocs, lizards, snakes |
Which animals during the Jurassic consumed insects, or were insectivores? | Ground: Snakes, lizards, frogs, amphibians, turtles, small theropods, mammals In Air: Pterosaurs, birds |
Which animals ate fish, or were piscivores? | Ammonites, pterosaurs, birds, turtles, crocs, dinosaurs, sharks, ichthyosaurs, and plesiosaurs |
Created by:
Chelseagirl2508
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