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Orodromine
Thescelosauridae is a clade of neornithischians from the Cretaceous of East Asia and North America. The group was originally used as a name by Charles M. Sternberg in 1937, but was not formally defined until 2013, where it was used by Brown and colleagues as the group uniting ''Thescelosaurus'' and '' Orodromeus'', based on their phylogenetic results. During a phylogenetic revision of neornithischians by Clint Boyd in 2015, the authorship of Thescelosauridae was given to Brown and colleagues, which meant that the similar name Parksosauridae, informally defined in 2002 by Buchholz, would have had priority over Thescelosauridae. The two clades had slightly different definitions, with Parksosauridae referring to all animals closer to ''Parksosaurus'' than ''Hypsilophodon'', but they contained the same taxa so Boyd used Parksosauridae under the assumption it had priority. However, in formalizing the clade following the regulations of the PhyloCode, Madzia, Boyd, and colleagues identif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fona
''Fona'' ( ; ) is an extinct genus of thescelosaurine thescelosaurid ornithischian dinosaurs from the 'mid'-Cretaceous Cedar Mountain Formation (Mussentuchit Member) of Utah, United States. The genus contains a Monotypic taxon, single species, ''F. herzogae'', known from several partial skeletons and skulls. Based on anatomical similarities to the closely related and similarly aged ''Oryctodromeus'', ''Fona'' was likely a semi-fossorial animal, likely spending a significant amount of time in underground burrows. It also represents the oldest known definitive thescelosaurine. Discovery and naming The ''Fona'' fossil material was discovered in multiple different localities of the Mussentuchit Member of the Cedar Mountain Formation in Emery County of Utah, United States. The holotype specimen, North Carolina Museum of Natural Sciences, NCSM 33548, was found in the 'Karmic Orodromine locality' and represents the only certain occurrence of ''Fona'' in the lower Mussentuchit Member. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zephyrosaurus
''Zephyrosaurus'' (meaning "westward wind lizard") is a genus of orodromine ornithischian dinosaur. It is based on a partial skull and postcranial fragments discovered in the Aptian-Albian-age Lower Cretaceous Cloverly Formation of Carbon County, Montana, USA. New remains are under description, and tracks from Maryland and Virginia, also in the US, have been attributed to animals similar to ''Zephyrosaurus''. It lived approximately 113 mya. Discovery and history Hans-Dieter Sues named his new genus in recognition of the fossil being found in western North America, and Charles R. Schaff, who found the specimen. MCZ 4392, the type specimen, is composed of jaw fragments, the braincase and associated bones, several partial vertebrae, and rib fragments. He found the new genus to represent a previously unknown lineage of hypsilophodont (a taxon now considered not natural), similar in some respects to ''Hypsilophodon''. Because of the fragmentary nature of the type, and lack of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koreanosaurus
''Koreanosaurus'' () is a genus of orodromine neornithischian dinosaur. One species has been described, ''Koreanosaurus boseongensis''. Discovery In 2003, three specimens of ''Koreanosaurus'' were found in the Late Cretaceous-age Seonso Conglomerate from the southern coast of the Bibong-ri dinosaur egg site, Boseong, Korean Peninsula. These specimens include the holotype KDRC-BB2, a partial upper skeleton lacking the skull, and two additional specimens which contains portions of the pelvic girdle and lower leg (KDRC-BB1 and KDRC-BB3). The type species was named after its locality ( Boseong site 5). This taxon was initially named and described in a master's thesis by Dae-Gil Lee in 2008, and was officially published by Min Huh, Dae-Gil Lee, Jung-Kyun Kim, Jong-Deock Lim and Pascal Godefroit in 2011. Description ''Koreanosaurus'' was a relatively small dinosaur, reaching in body length. Based on its taxonomic position and the existence of small burrows from the Seonso Cong ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orodromeus
''Orodromeus'' (meaning "Mountain Runner") is a genus of herbivorous orodromine thescelosaurid dinosaur from the Late Cretaceous of North America. Only one species is known, the type species ''Orodromeus makelai''. Discovery and naming The remains of ''Orodromeus'' were discovered by Robert Makela during the excavation in Teton County, Montana, of the '' Egg Mountain'' brooding colony of a much larger relative, ''Maiasaura''. The type species, ''Orodromeus makelai'' and ''Orodromeus niedae'', were named and shortly described by Jack Horner and David B. Weishampel in 1988. The generic name is derived from Greek ὄρος, ''oros'', "mountain", in reference to the Egg Mountain site, and δρομεύς, ''dromeus'', "runner", referring to the cursorial habits of the animal. The specific name honoured the late Makela.Horner, J. and Weishampel, D., 1988, "A comparative embryological study of two ornithischian dinosaurs", ''Nature'' (London), 332(No. 6161): 256-257 (1988) The holo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albertadromeus
''Albertadromeus'' is an extinct genus of orodromine thescelosaurid dinosaur known from the upper part of the Late Cretaceous Oldman Formation (middle Campanian stage) of Alberta, Canada. It contains a single species, ''Albertadromeus syntarsus''. Etymology The composite term ''Albertadromeus'' is derived from the name of the Canadian province "Alberta", and the Greek word ''dromeus'' (δρομεύς) meaning "runner", a reference to its inferred cursorial nature; thus "runner from Alberta". The specific name, ''syntarsus'' is derived from Greek words "syn" (συν) meaning "together" and "tarsus" (ταρσός) meaning "ankle", hence "together-ankle" a reference to the condition where its distal fibula is fused to its distal tibia. This dinosaur was described and named by Caleb Marshall Brown, David C. Evans, Michael J. Ryan & Anthony P. Russell in 2013 and the type species is ''Albertadromeus syntarsus''. Description The holotype specimen of ''Albertadromeus'' TMP 2009.037.00 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevadadromeus
''Nevadadromeus'' (meaning "Nevada runner") is an extinct genus of small thescelosaurine ornithischian dinosaur, from the Willow Tank Formation of Nevada, United States. The genus contains a single species, ''N. schmitti'', which represents the first non-avian dinosaur named from Nevada. Discovery and naming The ''Nevadadromeus'' holotype specimen, NSC 2008-002 was discovered near the Valley of Fire in 2008 and the bones were prepared for an event in Henderson, Nevada in 2021. A second ornithopod from Nevada, a hadrosaur, was also leaked during the event, but it was not ready for public view until 2022. ''Nevadadromeus'' was formally published in October 2022. In 2022, Bonde ''et al''. described ''Nevadadromeus'' as a new genus and species of thescelosaurine. The generic name, "''Nevadadromeus''", combines a reference to the Nevada, the state the holotype was discovered in, with the Greek "dromeus", meaning "runner". The specific name Specific name may refer to: * in Database ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oryctodromeus
''Oryctodromeus'' (meaning "digging runner") was a genus of small orodromine thescelosaurid dinosaur. Fossils are known from the Late Cretaceous Blackleaf Formation of southwestern Montana and the Wayan Formation of southeastern Idaho, USA, both of the Cenomanian stage, roughly 105-96 million years ago. A member of the small, presumably fast-running herbivorous family Thescelosauridae, ''Oryctodromeus'' is the first non-avian dinosaur published that shows evidence of burrowing behavior. Description ''Oryctodromeus'' was originally described as lacking ossified tendons in the tail. However, specimens from the Wayan Formation demonstrate the presence of a thick tendon lattice in the dorsal, sacral, and caudal columns of some specimens; perhaps indicating more flexibility in ossified tendons than has previously been supposed. Adaptations in the jaws, forelimbs, and pelvis were described in the Blackleaf specimens that could have helped move and manipulate soil. Additional mate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Asia
East Asia is a geocultural region of Asia. It includes China, Japan, Mongolia, North Korea, South Korea, and Taiwan, plus two special administrative regions of China, Hong Kong and Macau. The economies of Economy of China, China, Economy of Japan, Japan, Economy of South Korea, South Korea, and Economy of Taiwan, Taiwan are among the world's largest and most prosperous. East Asia borders North Asia to the north, Southeast Asia to the south, South Asia to the southwest, and Central Asia to the west. To its east is the Pacific Ocean. East Asia, especially History of China, Chinese civilization, is regarded as one of the earliest Cradle of civilization#China, cradles of civilization. Other ancient civilizations in East Asia that still exist as independent countries in the present day include the History of Japan, Japanese, History of Korea, Korean, and History of Mongolia, Mongolian civilizations. Various other civilizations existed as independent polities in East Asia in the past ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North America
North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the south and west by the Pacific Ocean. The region includes Middle America (Americas), Middle America (comprising the Caribbean, Central America, and Mexico) and Northern America. North America covers an area of about , representing approximately 16.5% of Earth's land area and 4.8% of its total surface area. It is the third-largest continent by size after Asia and Africa, and the list of continents and continental subregions by population, fourth-largest continent by population after Asia, Africa, and Europe. , North America's population was estimated as over 592 million people in list of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's popula ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2013 In Paleontology
Plants Cnidarians Arthropods Bryozoans Brachiopods Molluscs Echinoderms Conodonts Fishes Amphibians Research * Laloy ''et al.'' (2013) reinterpret the Eocene frog species ''Rana cadurcorum'' from the Quercy Phosphorites (France) as a junior synonym of '' Thaumastosaurus gezei''. Newly named temnospondyls Newly named lepospondyls Newly named lissamphibians Turtles Research * A study on the anatomy of the brain and inner ear of the Jurassic turtle '' Plesiochelys etalloni'' is published by Paulina Carabajal ''et al.'' (2013). Newly named turtles Thalattosaurs Ichthyopterygians Lepidosauromorphs Newly named sauropterygians Newly named rhynchocephalians Newly named lizards Newly named snakes Archosauromorphs Newly named basal archosauromorphs Archosaurs Other reptiles Synapsids Non-mammalian synapsids Research * The postcranial skeleton of therocephalian ''Ictidosuchoides'' is described by Heidi Fourie (2013). New tax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2015 In Paleontology
Plants Cnidarians Arthropods Bryozoans Brachiopods Molluscs Echinoderms Conodonts Fishes Reptiles Amphibians Research * A study of the anatomy of the skull of ''Acanthostega gunnari'' is published by Porro, Rayfield & Clack (2015). * A study of the skeletal morphogenesis of the Lepospondyli, lepospondyls ''Microbrachis pelikani'' and ''Hyloplesion longicostatum'' is published by Olori (2015). * A study of the anatomy of the skull of the lepospondyl ''Quasicaecilia texana'' is published by Pardo, Szostakiwskyj & Anderson (2015). New taxa Temnospondyls Lepospondyls Lissamphibians Diadectomorphs Synapsids Non-mammalian synapsids Research * Redescription of the anatomy of ''Tiarajudens eccentricus'' is published by Cisneros ''et al.'' (2015), who compare the species with ''Anomocephalus africanus''. New taxa Mammals Other animals Research * A study of phylogenetic relationships of the Ediacaran animal ''Namacalathus'', interpreting it as a membe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Cretaceous
The Early Cretaceous (geochronology, geochronological name) or the Lower Cretaceous (chronostratigraphy, chronostratigraphic name) is the earlier or lower of the two major divisions of the Cretaceous. It is usually considered to stretch from 143.1 Megaannum#SI prefix multipliers, Ma to 100.5 Ma. Geology Proposals for the exact age of the Barremian–Aptian boundary ranged from 126 to 117 Ma until recently (as of 2019), but based on drillholes in Svalbard the defining Anoxic event#Cretaceous, early Aptian Oceanic Anoxic Event 1a (OAE1a) was dated to 123.1±0.3 Ma, limiting the possible range for the boundary to c. 122–121 Ma. There is a possible link between this anoxic event and a series of Early Cretaceous large igneous provinces (LIP). The Ontong Java Plateau, Ontong Java-Manihiki Plateau, Manihiki-Hikurangi Plateau, Hikurangi large igneous province, emplaced in the South Pacific at c. 120 Ma, is by far the largest LIP in Earth's history. The Onto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
