Early Jurassic Subperiod
201.3 - 174.1 27.2

Hettangian Age 201.3 - 199.3 2 201.3 - 174.1 27.2 Mecochirus longimanatus, Europe 201.3 - 174.1 27.2 Sichuanobelus utatsuensis Japan & China 201.3 - 174.1 27.2 Protosuchus richardsoni 1st crocodile Americas  201.3 - 174.1 27.2 Emausaurus ernsti Germany  201.3 - 174.1 27.2 Oxynoticeras oxynotum, Europe & N America  201.3 - 0 Rimicaris exoculata, Atlantic ocean, Least Concern 201.3 - 145 56.3 Equisetites aequecaliginosus Worldwide, Jurassic 201 - 0 Averostra bird snouts most  theropod 2 groups, Ceratosauria & 2 groups Coelurosauria orionideans 1 subgroup maniraptoriformes, Aves, survived 201 - 185 16 Seitaad genus sauropodomorph S Utah, USA 200 - 0  Dot-lined white Artace cribraria 200 - 0 Menelaus blue morpho, Morpho menelaus S & C America 200 - 0 Liomera rugata Indian ocean Least concern 200 - 183 17 Massospondylus carinatus Longer vertebra 200 - 0  Yellow-striped pygmy eleuth Eleutherodactylus limbatus Cuba Least Concern 200 - 0  La Palma glass frog Hyalinobatrachium valerioi C America  Least Concern 200 Seitaad ruessi Navajo sandstone USA  200 - 0 Common rain frog Breviceps adspersus S Africa Least Concern 200 - 0 Purple frog Nasikabatrachus sahyadrensis S India Endangered 200 - 195 5 Anchisaurus polyzelus lizard Portland formaiton USA  200 - 0 Australian green tree frog Litoria caerulea N Australia  Least Concern 200 - 0  Southern flannel moth Megalopyge opercularis C America  200 - 0 Madagascan sunset moth, Chrysiridia rhipheus, Madagascar   200 - 195 5 Anchisaurus genus basal sauropodomorph red sandstone Portland Formation 200 - 195 5 Ngwevu intloko grey skull genus massospondylid sauropodomorph  Elliot Formation S Africa 200 - 191 9 Yizhousaurus genus basal sauropodiform Lower Lufeng Formation, Yunnan Province S China 200 - 195 5 Ledumahadi giant thunderclap Sesotho language genus lessemsaurid sauropodomorph Elliot Formation Free State Province, S Africa. 1Sp 1 incomplete postcranial. 1 of 1st giant sauropodomorphs, 12 tonnes / 26,000 lb despite no columnar limbs later huge relatives L. mafube 200 New Jersey Palisades steep cliffs along W lower Hudson River NE New Jersey & SE New York Nyack, New York, visible @ Haverstraw, New York. 90m/300' Weehawken, 160m/540' N Patcham Formation Patcham Island, India. Mesozoic Chari Formation India. Early Jurassic Zhenzhuchong Formation prosauropod Plesiosaur Lufengosaurus huenei footprints China  201.3 Triassic-Jurassic extinction whole classconodonts & 23-34% marine genera died.  land: all archosauromorphs  ( - crocodile) pterosaur   dinosaur some abundant:   aetosaur, mi phytosaur, mi rauisuchid 201 - 189 12 Bushveld Sandstone. 201 Tritylodon 3 cusped tooth genus tritylodonts, 1 of most advanced cynodont therapsids mi 201 - 0 Tetanurae theropod megalosauroids, allosauroids, tyrannosauroids, ornithomimosaurs, maniraptorans, birds. Closer to modern birds than  sister Ceratosaurus  Majority predatory dinosaur 201.3 Mammals Triassic-Jurassic ext mi 201 Atychodracon 200 - 190 10 Heterodontosaurus tucki Different toothed lizard Clarens formaiton S Africa 201 - 193 8 Dilophosauridae Family 4-7m 3-500kg 200 - 20/14 180 mi Tethys Ocean. 200 mi Flinders Chase National Park S Australia W Kangaroo Island  200 Pulanesaura genus basalsauropod Upper Elliot Formation Free State, S Africa 1Sp Pulanesaura eocollum 2 subadult to adults 200 proto-Amazon river. Oldest river bed. flowed W from mtns from separation S American & Africa plates. predates Gondwana break up extension proto-Congo river? 200 mi Red Rocks amphitheater 200 Sefapanosaurus herbivorous sauropodomorph S Gondwana 200 - 195 5 Pradhania genus massospondylid sauropodomorph Up Dharmaram Formation India 200 Ignavusaurus genus basal sauropodomorph Upper Elliot Formation Lesotho. 1 partial skeleton type species I. rachelis 200 - 0 Violin beetle Mormolyce phyllodes SE Asia Early Jurassic Kayentatherium tritylodontid cynodonts. 1/2 tritylodonts Kayenta Formation N Arizona, USA 200 - 195 5 Anchisaurus genus basalsauropodomorph red sandstone Portland Formation 2m/6'6" 27 kg/60lb mi Ammosaurus 2.5-4m 8'2"-13'1"  200 - 183 17 Adeopapposaurus far eating lizard, Prosauropod dinosaur, Cañón del Colorado Formation San Juan, Argentina. Like Massospondylus. 4 partial skeletons w/ 2 partial skulls. 200 - 183 17 Massospondylus long sauropodomorph *1st named dinosaur S Africa, Lesotho, Zimbabwe 1854 200 - 66 34 Ammonitida highly evolved ammonoid cephalopods 4 suborders: 1 Phylloceratina 2 Lytoceratina 3 Ancyloceratina 4 Ammonitina 201 Phylloceratina from Ceratitida. 201 Lytoceratina from Phylloceratina 145 Ancyloceratina highly specialized fm Lytoceratina 145 Ammonitina fm Phylloceratina & Lytoceratina 200 Antetonitrus genus sauropod 1Sp. 1 oldest sauropods quadrupedal herbivore, primitive  forelimbs grasp not weight support Elliot Formation S Africa.  Antetonitrus ingenipes. 199.6 - 175.6 24 Eocaecilia micropodia Dawn caecilia Arizona N America

Sinemurian Age 199.3 - 190.8 8.5 199 - 0 Armadillo girdled lizard, Ouroborus catanhractus W S America Least concern 199 - 188 11 Vulcanodon volcano tooth genus sauropod S Africa. 199 - 195 4  Portland FormationNE USA 199 - 6 3 Abrictosaurus 199 Leonerasaurus basal genus sauropodomorph 1Sp   L. taquetrensis 199.6 - 66 133.6 Thyreophora 199.6 - 66 133.6 Eocursor  Thyrapod Lower Elliot formation South Africa Ancestor Stegasaurus Triceratops, Iguanadon 199.3 - 66 23.3 Ceratosaurs Thyrapod 199 - 189 10 Lesothosaurus diagnosticus Lizard Upper Elliot formaiton Lesotho 199 - 0 Jaragua dwarf gecko Sphaerodactylus ariacae Dominican Republic Vulnerable 199 - 0 Satanic leaf-tailed gecko Uroplatus phantasticus N Madagascar Least concern 199 - 0 Bobrtail Skink Tiliqua rugosa Australia Least concern 199 flood basalts C Atlantic 199 - 189 10 Lesothosaurus diagnosticus Lesothosaurus  genus Thyrapod S Africa, Upper Elliot formation Lesotho 196 - 189 7 Yunnanodon Yunnan tooth genus non mammalian therapsids tritylodont, 1 of few non-mammalian therapsids survive Triassic - Jurassic extinction  Yunnan province China skulls 36-47mm/1.4/1.8"

Early Jurassic Subperiod
201.3 - 174.1 27.2

Sinemurian Age 199.3 - 190.88.5 196.5 - 183 13.5 Scelidosaurus Charmouth Dorset, England 194 - 88 6 Cryolophosaurus 197 Lycorhinus 197 - 190 7  Lufeng Formation  Yunnan, China 196.5 - 189.6 6.9 Echioceras raricostatum Europe & N America 196.5 - 66 130.5 Gravisauria sauropod dinosaurs consisting of some genera, Vulcanodontida, Eusauropoda. 196.5 - 183 13.5 Scelidosaurus harrisonii Limb lizard England 196 Scutellosaurus lawleri Little-shielded lizard Kayenta formation USA 196 Scutellosaurus ? Ichthyosaurus, Leptonectes, Bienotherium, Geranosaurus, Lusitanosaurus, Tatisaurus, Eretmosaurus 195 - 190 5 Dimorphodon macronyx 2 shapes tooth NW Europe 195 Hadrocodium 195 mi Aardonyx basalsauropodomorph dinosaur Aardonyx celestae Elliot Formation S Africa 195 mi Xingxiulong Xingxiu Bridge dragon genus bipedal sauropodiform China 195 - 185 10  Kayenta Formation Glen Canyon Group across Colorado PlateauN Arizona, NW Colorado, Nv, Ut 194 - 188 6 Cryolophosaurus Antarctica. 194 - 135 59 Penultimate Glacial Period 220 - 195 25 Kuehneotherium 190 Merosaurus 199.6 - 75.6 124 Plesiosaurus 193 Dilophosaurus N Arizona 194 Sarcosaurus 199.3 - 197.5 101.8 Saltriovenator 201 - 196 5 Sinosaurus 197 - 90 7 Bienosaurus 194 - 188 6 Cryolophosaurus ellioti Frozen crested lizard Hanson formation Ant 193 Dilophosaurus D. wetherilli 2 crested lizard Dilophosaurus, Dilophosauridae, Theropoda, Saurischia, Dinosaruia Kayenta formation USA 251.902 - 66 185.902 Kaladongar Formation Kachchh basin. Patcham isl, Kachchh, Gujarat, India. limestone, sandstone. intruded by olivine gabbroic baked, shattered overlying Limestone

Early Jurassic Subperiod
201.3 - 174.1 27.2

Sinemurian Age 199.3 - 190.8 8.5 Calizas de Lychnus Formation  NC Spain. genus level Dinosaurs

Pliensbachian Age 190.8 - 182.7 8.1 190 - 0 Chinese pond turtle, Mauremys reevesii, E Asia, Endangered 190 - 0 Big-headed turtle Platysternon megacephalum Madagascar, Endangered 190 - 0 Alligator snapping turtle, Macrochelys temminckii, USA Vulnerable 190 - 0 Thorny devil, Moloch horridus, Aus Least concern 190 - 0 Philippine sailfin lizard Hydrosaurus pustulatus Philipines Vulnerable 190 - 0 Sulawesi lined gliding lizard, Draco spilonotus, Sulawesi is Near threatened 190 - 0 Desert horned lizard, Phrynosoma platyrhinas, W&N America Least concern 190 - 0 Frilled-neck lizard, Chlamydosaurus kingii Least concern 190 Lufengosaurus huenei Lufeng lizard Lower Lufeng formation Ch 190 Yimenosaurus Yiman reptile plateosaurid sauropodomorph Ch 195 Lufengosaurus Lufeng lizard genus massospondylid dino collagen in rib SW China 189.6 - 175.6 14 Siderops kehli Australia 189.6 - 0 Lamellibrachia luymesi, Gulf of Mexico, Least concern 189.6 - 0 Giant tube worm, Riftia pachyptila, Pacific Least concern Amaltheus oxyconic ammonite open umbilicus, serrated keel, slightly sigmoidal ribs 196 - 189 6 Obsuse star ammonite, Asteroceras obtusum, Eurasia 189 - 183 6 Glacialisaurus hammeri Frozen lizard Hanson fomration Antarctica   189 - 183 6 Pleuroceras spinatum Sp ammonite fast nektoniccarnivore. Pleuroceras spinatum Shell  D45–54mm/1.8-2.1" Fr, Grm, Hun, It, Ser-Mont, Sp, UK The Wave sandstone rock Az near Utah. Coyote Buttes Paria Canyon Vermilion Cliffs Wilderness 190 - 0  Giant malaysian stick mantis Paratoxodera cornicollis Indonesia 190 Coyote Buttes Dinosaur Tracks 1K+ footprints Paria Canyon-Vermilion Cliffs SC Utah, NC Arizona w/ Eubrontes, Anchisauripus, Grallator, 1 Sauropodomorph 190 - 182 8 Clarens Formation Lesotho, Free State, KwaZulu-Natal, E Cape S Africa. Top of 3 formations Stormberg Group greater Karoo Supergroup rocks final phase Karoo Basin 189 - 83 6 Glacialisaurus genus massospondylid sauropodomorph. C Transantarctic Mts Antarctica.  partial hind limb & L femur

Early Jurassic Subperiod
201.3 - 174.1 27.2

Pliensbachian Age 190.8 - 182.7 8.1 182.7 - 176 7 Whitby Mudstone Toarcian of Lias Group, Cleveland, Worcester Basins, E Midlands Shelf Yorkshire, Worcestershire, UK 182.7 Karoo, Ferrar Large Igneous Provinces LIPs 2 large igneous provinces S Africa & Antarctica break-up of Gondwanasupercontinent flood basalt S Af, Ant, S Am, India, Aus N Zealand 182.7 Toarcian turnover fm Pliensbachian 7th-largest extinction marine:  mi mollusk: ammonite, belemnites, gastropod, bivalve, radiolarian, foraminifera, calcareous nannoplankton, brachiopod, ostracod, crinoid, crustacean, marine reptile,  fish. Karoo-Ferrar eruptions warms climate spreads anoxiain ocean acidifcation 182.7 Sarahsaurus genus basal sauropodomorph NE Arizona, USA 183 - 163 20 Steneosaurus bollensis Narrow lizard Europe & Morocco   Ziliujing Formation Sichuan Basin Gongxianosaurus, theropod Dongyuemiao, Zizhongosaurus footprints & ? prosauropods from Daanzhai Member 183 - 175.6 7.4 Rhomaleosaurus 183 - 174 9 Gongxianosaurus genus basal sauropod dinosaur 183 - 79 4 Stenopterygius 183 - 76 107 Peipehsuchus 183 - 76 107 Pelagosaurus 183 - 76 107 Platysuchus 183 - 63 120 Steneosaurus 183 - 175 8 Vulcanodontidae sauropod Zizhongosaurus, Barapasaurus, Tazoudasaurus, Vulcanodon basal sauropods? 182 - 0 Necklace starfish, Fromia monilis, Indian ocean, Near threatened

Toarcian Age 182.7 - 174.1 8.6 ? Emausaurus, Microcleidus, Seeleyosaurus 182 - 145 37 Trigonia signicollina, Thailand & New Zealand Jurassic 180.3 - 94 86.3 Lepidotes gigas Europe