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tichosteus wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 history 2 classification 3 references toggle the table of contents tichosteus 9 languages čeština español فارسی italiano nederlands русский tiếng việt volapük 中文 edit links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikimedia commons wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia extinct genus of dinosaurs tichosteus temporal range late jurassic kimmeridgian preꞓ ꞓ o s d c p t j k pg n vertebra from the holotype of t lucasanus scientific classification kingdom animalia phylum chordata class reptilia clade dinosauria clade ornithischia clade ornithopoda family incertae sedis genus tichosteus cope 1877 type species tichosteus lucasanus cope 1877 nomen dubium other species t aequifacies cope 1878 nomen dubium tichosteus meaning walled bone is a genus of herbivorous dinosaur from the late jurassic it is known only from vertebrae recovered from kimmeridgian rocks in the morrison formation colorado history edit in 1877 edward drinker cope named the type species tichosteus lucasanus 1 the generic name is derived from greek teichos wall and osteon bone referring to the fact that the vertebrae though hollow inside had no lateral pneumatic foramina openings in the side wall for air sacks to invade the bone the specific name honours superintendent of public schools oramel w lucas who collected two vertebrae for cope near arkansas river the dorsal vertebrae together forming the holotype amnh 5770 are about 23 millimetres 0 91 in long cope estimated the size of the animal as that of an alligator charles craig mook later compared it to a wolf the specimen represents a subadult individual as can be seen from the suture between the vertebral centrum and the neural arch in 1878 cope named a second species tichosteus aequifacies 2 the specific name is derived from latin aequus equal and facies face referring to the more symmetric extremities of the vertebrae as compared to t lucasanus the type specimen amnh 5771 again consists of two vertebrae classification edit cope himself was rather puzzled by the affinities of tichosteus providing no classification apart from the fact that it was named in an article dedicated to reptiles later authors often saw tichosteus as a theropod at the end of the twentieth century it was suggested that it may have been a basal iguanodont 3 the species are nomina dubia and are incertae sedis within ornithopoda references edit e d cope 1877 on reptilian remains from the dakota beds of colorado proceedings of the american philosophical society 17 100 193 196 e d cope 1878 descriptions of new extinct vertebrata from the upper tertiary and dakota formations bulletin of the united states geological and geographical survey of the territories 4 2 379 396 weishampel d b dodson p and osmolska h 1990 the dinosauria california university press p 531 dinosaurs portal v t e ornithopoda kingdom animalia phylum chordata clade dinosauria clade ornithischia clade neornithischia clade cerapoda avemetatarsalia see avemetatarsalia ornithischia see ornithischia ornithopoda see below ornithopoda ornithopoda burianosaurus callovosaurus thescelosauridae hypsilophodontidae gideonmantellia hypsilophodon vectidromeus elasmaria anabisetia atlascopcosaurus chakisaurus diluvicursor fostoria galleonosaurus gasparinisaura isasicursor kangnasaurus leaellynasaura macrogryphosaurus mahuidacursor morrosaurus muttaburrasaurus notohypsilophodon qantassaurus sektensaurus talenkauen tietasaura trinisaura weewarrasaurus rhabdodontomorpha ampelognathus emiliasaura foskeia fostoria muttaburrasaurus obelignathus tenontosauridae convolosaurus iani tenontosaurus rhabdodontidae matheronodon mochlodon pareisactus rhabdodon transylvanosaurus zalmoxes dryomorpha draconyx hesperonyx owenodon dryosauridae dryosaurus dysalotosaurus elrhazosaurus eousdryosaurus iyuku kangnasaurus valdosaurus ankylopollexia barilium bayannurosaurus calvarius camptosaurus cedrorestes cumnoria dakotadon emiliasaura fukuisaurus hippodraco iguanacolossus istiorachis lanzhousaurus lurdusaurus magnamanus napaisaurus oblitosaurus osmakasaurus planicoxa proa ratchasimasaurus riabininohadros theiophytalia uteodon hadrosauriformes bolong hypselospinus jinzhousaurus mantellisaurus morelladon ouranosaurus iguanodontidae barilium comptonatus iguanodon mantellisaurus hadrosauroidea see below hadrosauroidea hadrosauroidea altirhinus bactrosaurus batyrosaurus brighstoneus cariocecus choyrodon claosaurus comptonatus datonglong eolambia equijubus fylax gilmoreosaurus gobihadros gongpoquansaurus gonkoken haolong huehuecanauhtlus hypsibema jeyawati jintasaurus koshisaurus levnesovia lophorhothon nanningosaurus nanyangosaurus penelopognathus plesiohadros portellsaurus probactrosaurus protohadros qianjiangsaurus shuangmiaosaurus siamodon sirindhorna tanius xuwulong yunganglong zhanghenglong zuoyunlong telmatosauridae kryptohadros telmatosaurus tethyshadros hadrosauridae aquilarhinus eotrachodon hadrosaurus lapampasaurus malefica yamatosaurus lambeosaurinae adynomosaurus ajnabia angulomastacator aralosaurus arenysaurus blasisaurus canardia jaxartosaurus kazaklambia latirhinus minqaria nipponosaurus pararhabdodon taleta tsintaosaurus parasaurolophini adelolophus charonosaurus parasaurolophus plesiolophus tlatolophus lambeosaurini amurosaurus corythosaurus hypacrosaurus lambeosaurus magnapaulia olorotitan velafrons saurolophinae barsboldia brachylophosaurini acristavus brachylophosaurus gongshuilong maiasaura ornatops probrachylophosaurus wulagasaurus austrokritosauria bonapartesaurus huallasaurus kelumapusaura secernosaurus kritosaurini ahshislesaurus anasazisaurus coahuilasaurus gryposaurus kritosaurus naashoibitosaurus rhinorex saurolophini augustynolophus prosaurolophus saurolophus edmontosaurini edmontosaurus kamuysaurus kerberosaurus kundurosaurus laiyangosaurus shantungosaurus related articles ichnotaxa amblydactylus anomoepus bonaparteichnium camptosaurichnus caririchnium dakotasaurus dinehichnus hadrosaurichnus iguanodontipus orcauichnites ornithopodichnites shiraminesauropus sousaichnium staurichnium tetrapodosaurus wintonopus ootaxa guegoolithus nomina dubia arstanosaurus cionodon claorhynchus diclonius eucercosaurus fulgurotherium glishades koutalisaurus loncosaurus mandschurosaurus microhadrosaurus ornithotarsus orthomerus pteropelyx siluosaurus stephanosaurus syngonosaurus thespesius tichosteus trachodon willinakaqe other articles arkharavia basturs poble bonebed dakota fossil hadrosaur diet hypsilophodont list of informal dinosaur names contains hadrosaur nomina nuda timeline of hadrosaur research edmontosaurus mummy amnh 5060 edmontosaurus mummy s m r4036 taxon identifiers tichosteus wikidata q2113285 gbif old 4821468 irmng 1253732 paleobiology database 65177 retrieved from https en wikipedia org w index php title tichosteus oldid 1362753473 categories ornithopoda dinosaur genera kimmeridgian dinosaurs dinosaurs of the morrison formation taxa named by edward drinker cope fossil taxa described in 1877 nomina dubia hidden categories articles with short description short description is different from wikidata articles with species microformats this page was last edited on 6 july 2026 at 00 29 utc page was rendered with parsoid text is available under the creative commons attribution sharealike 4 0 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