Valich The Earth nourishes life, and its churning oceans allowed complex molecules to form the first DNA.
Nature: the wonderous glory for us to marvel, explore, strive to understand and enjoy. Hi! I am Don Valich. My research interests are vertebrate paleontology , paleogeology , paleoecology , phylogenetics , and "origin of life " topics. Within the field of paleontology my primary focus is on the evolution of terrestrial mammals , with particular interest in the evolutionary lineages of the Cynodonts , Miacoidea , Creodonts , and all early Carnivora . I welcome any interests in these fields, especially Canidae (dog evolution), and any challenging questions or research assignments. I also have interests in researching the evolution of continental crusts and early land masses, and the accretion events that formed early supercontinents , such as the Wyoming Craton and the North American continent .
If I make a mistake on any article, please correct it. I would really appreciate it. All constructive comments, questions and insightful posts are very welcome.
The theory of evolution is the central unifying paradigm of all biology - Nothing in biology makes sense except in the light of evolution [1] .
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Oodectes Cynodonts Hyainailouros sulzeri Cimolesta Hyaenodontidae Oxyaenidae Laurasiatheria Miacoidea :Miacidae : Chailicyon , Eostictis , Ictognathus , Miocyon , Oodectes , Palaearctonyx , Paramiacis , Prodaphaenus , Tapocyon , Uintacyon , Vassacyon , Vulpavus , Xinyuictis , Ziphacodon Viverravidae : Bryanictis , Didymictis , Ictidopappus , Intyrictis , Pristinictis , Protictis , Raphictis , Simpsonictis , Viverravus , Quercygale Musteloidea Mesonychia - expand physical characteristics to differentiate Order Mesonyx Nimravidae Amphicyonidae Dinocyon Cephalogale Agriotherium Phoberocyon Plithocyon Amphicticeps Amphicynodon Pachycynodon Kolponomos Amphicyon Borophaginae Tomarctus Sirenia (evolution)Pikaia Therapsids Mojave accretion Yavapai Orogeny Mazatzal Orogeny Laramide Orogeny )Geology of the Grand Canyon area#Creation of the Grand Canyon (cutting of the Colorado River - 3 major theories)North China craton Trans-North China Orogeny Qilianshan Orogeny Central Asian Orogeny Geology of China Geology of Taiwan Yangtze craton Sichuan Basin Huangshan Orogeny Tangula Mountains Anyemaqen Mountain (6,282 m; 20,610 ft), Qinghai, source area Yangtze River Significant improvements on
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My favorite animal is the Norwegian Elkhound !
Meet "Kodi" - the friendliest, gentle, a bit shy, but most loveable Elkhound that ever existed! Super with children and always ready to give kisses! Her motto: "I love the attention, I love little children, and I live to be petted by everyone."
File:NorwegianElkhound.JPG THE WORLD :
Sphere : Our Universe Realm : Life on Earth Superdomain : Biota (Eubacteria , Archaea , Eukaryota )Domain : Eukaryota (eukaryotes) - protists , fungi , plants , animals (membrane -bound nucleus , most multicellular )Kingdom : Animalia -Metazoa (animals) - multicellular , locomotion , responsive to environment, fixed body plan Subkingdom: Eumetazoa - all animal groups except sponges
Subregum: Bilateria (bilaterians) - having bilateral symmetry ; metazoan triploblastic animals
Branch: Deuterostomia (deuterostomes) - in embryonic development first opening (blastopore ) becomes anus , in Protostomia blastopore becomes mouth
Infrakingdom: Chordinia
Phylum : Chordata (chordates) - notochord , hollow dorsal nerve cord , pharyngeal slits , endostyle , tail Clade : Craniata (craniates) - all animals having a skullSubphylum : Vertebrata (vertebrates) - with backbones or spinal column Infraphylum: Gnathostomata - jawed vertebrates
Class Sarcopterygii ? - lobe-finned bony fishes with paired rounded fins; include lungfish and coelacanthsTerrestrial Vertebrates Superclass: Tetrapoda (tetrapods) - having four limbs or four leg-like appendages
Series: Amniota - Synapsida (mammals , mammal-like reptiles ), Sauropsida (reptiles , dinosaurs , Aves -birds)
Taxon : Therapsida Clade : Mammaliaformes - mammals and extinct relatives: Allotheria , Docodonta (Morganucodonta ), Symmetrodonta Class : Mammalia (mammals) - vertebrates; milk production in females ; hair /fur ; specialized teeth ; 3 specialized ear bones; neocortex region in brain ; endothermic (warm-blooded)Subclass : Theria /Theriiformes Infraclass: Holotheria - live-bearing mammals and prehistoric relatives Symmetrodonta (basal Mesozoic mammals)
Superlegion: Trechnotheria - Cladotheria (Theria , Dryolestidae , Amphitherium , Prototribosphenida ), Spalacotheriids (Akidolestes , Zhangheotherium , Maotherium ), and their relatives; characterized by features of the scapula , tibia , humerus
Legion: Cladotheria - Theria , Dryolestidae (drylostids), Zatheria , and their relatives; characterized by features of the tribosphenic molar and angular process of dentary
Sublegion: Zatheria - Theria & fossil relatives (Peramuridae , Deltatheridium ); distinctly zatherian molars
Infralegion: Tribosphenida
Supercohort: Theria (therians) - mammal subclass that give birth to live young without shelled egg (placentals , marsupials )
Cohort: Placentalia -Eutheria (placentals) - placental mammals
Magnorder: Epitheria (epitheres)
Superorder : Preptotheria -Laurasiatheria - carnivores, whales, bats, horses, Manidae (pangolins -scaly anteaters), etcGrandorder: Ferae - Carnivomorpha , Creodonta , Oxyaenidae , Hyaenodontidae
Crown Order: Carnivoramorpha - Miacoidea , Carnivora
Order : Carnivora (carnivores), Miacidae (ancestral carnivore), Viverravidae , Nimravidae , Amphicyonidae (Bear-dogs), Viverridae (civets, genets, mongooses), Ursidae (bears), Felidae (cats), Canidae , Procyonidae (raccoons), Otariidae (sea lions), Phocidae (seals), Odobenidae (walruses), Mustelidae (weasels), Herpestidae (mongooses), Hyaenidae (hyenas)Infraorder Miacoidea /Miacoid Group † (45-65 Ma)
Suborder: Caniformia (Canidae , Arctoidae , † Amphicyonidae , Ursidae , Ailuridae , Mephitidae , Mustelidae , Procyonidae , Pinnipedia )
Superfamily: Canoidea (dog-like carnivores)
Family : Canidae (Canids -from the German: Caniden-Canidenformen) - († Hesperocyoninae , † Borophaginae (Tomarctus ), Caninae )Subfamily: Caninae - † Eucyon (8 Ma ), wolves , Vulpes (foxes ), jackals , coyotes , dingos , dogs
Tribe Canini (True Dogs)
Genus : Canis - wolves, coyotes, foxes, jackals Canis davisi Species : Canis lupus - gray wolf Subspecies : Canis lupus familiaris - domestic dogs Breed : Norwegian Elkhound Given Name: Kodiak Bear
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