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Genus of pachycephalosaurid dinosaurs
species has also been debated, and it may not belong to the genus Stegoceras. Stegoceras was a small, bipedal dinosaur about 2 to 2.5 metres (6.6 to 8.2 ft)
Stegoceras
Genus of pachycephalosaurid dinosaurs
Gilmore found Troodon to be the same as the existing ornithischian genus Stegoceras. T. wyomingensis could not be compared with the type species of Troodon
Pachycephalosaurus
Extinct genus of pachycephalosaur dinosaurs
his work with pachycephalosaurian dinosaurs. It has been suggested that Stegoceras novomexicanum is a juvenile representative of this species, because the
Sphaerotholus
Extinct genus of dinosaurs
dome allows Foraminacephale to be differentiated further from Stegoceras. In young Stegoceras, the dome is flat; however, in even the smallest Foraminacephale
Foraminacephale
Extinct genus of dinosaurs
validum and Stegoceras sternbergi and more distantly related to Stegoceras breve. These species and the general taxonomy of Stegoceras was reviewed in
Colepiocephale
Extinct genus of dinosaurs
specific name langstoni honors Wann Langston. It may be a synonym of Stegoceras. The holotype specimen of Texacephale, LSUMNS 20010, is composed of fused
Texacephale
Extinct clade of dinosaurs
Pachycephalosauridae to include only "dome-skulled" species (including Stegoceras and Pachycephalosaurus), while leaving more "basal" species outside that
Pachycephalosauria
Extinct genus of dinosaurs
and tall hind legs. The head of Prenocephale was comparable to that of Stegoceras, albeit with closed supratemporal fenestrae. Also, the paired grooves
Prenocephale
Genus of dinosaurs
Pachycephalosauria Wannanosaurus Pachycephalosauridae Hanssuesia Colepiocephale Stegoceras Pachycephalosaurinae Goyocephale Homalocephale Tylocephale Foraminacephale
Platytholus
Extinct genus of dinosaurs
been found, though there are well-preserved skeletons of the related Stegoceras, Homalocephale, and Prenocephale. Based on these taxa, Alaskacephale had
Alaskacephale
Hadrosaurid ornithopod dinosaur genus from Late Cretaceous Period
were the ceratopsian Pentaceratops sternbergii; the pachycephalosaur Stegoceras novomexicanum; and some unidentified fossils belonging to Tyrannosauridae
Parasaurolophus
Extinct genus of dinosaurs
that the tooth belonged to the herbivorous pachycephalosaur Stegoceras and that Stegoceras was in fact a junior synonym of Troodon. The similarity of troodontid
Troodon
Extinct genus of dinosaurs
Pachycephalosauridae Colepiocephale lambei Hanssuesia sternbergi Stegoceras novomexicanum Stegoceras validum Goyocephale lattimorei Homalocephale calathocercos
Homalocephale
Extinct genus of dinosaurs
Zavacephale Pachycephalosauridae Colepiocephale Gravitholus Hanssuesia Stegoceras Texacephale Pachycephalosaurinae Acrotholus Alaskacephale Amtocephale
Amtocephale
Genus of pachycephalosaurid dinosaurs
transitional pachycephalosaurid specimens that are intermediate between Stegoceras and Pachycephalosaurus by Horner, Varricchio and Goodwin in 1992, then
Brontotholus
Extinct genus of dinosaurs
similar if not greater than more derived pachycephalosaur. Compared to Stegoceras validum and later Campanian pachycephalosaurids, the dorsally convex frontonasal
Acrotholus
Extinct family of dinosaurs
Abrictosaurus "Heterodontosaurids" (paraphyletic) Tianyulong Echinodon Wannanosaurus Goyocephale Prenocephale Homalocephale Stegoceras Pachycephalosaurus
Heterodontosauridae
Genus of dinosaur
1964, Oskar Kuhn reassigned T. bexelli to the genus Stegoceras as the species S. bexelli (as Stegoceras had been split from Troodon to contain the true pachycephalosaur
Sinocephale
Extinct genus of dinosaurs
Zavacephale Pachycephalosauridae Colepiocephale Gravitholus Hanssuesia Stegoceras Texacephale Pachycephalosaurinae Acrotholus Alaskacephale Amtocephale
Wannanosaurus
Extinct clade of primarily herbivorous dinosaurs
M. (1945). "Pachycephalosauridae Proposed for Dome-Headed Dinosaurs, Stegoceras lambei, n. sp., Described". Journal of Paleontology. 19 (5): 534–538.
Ornithischia
Genus of pachycephalosaurian dinosaurs
lambei Pachycephalosauridae Amtocephale gobiensis Foraminacephale brevis Stegoceras validum Pachycephalosaurinae Tylocephale gilmorei Alaskacephale gangloffi
Zavacephale
Extinct genus of dinosaurs
occipital region of Stegoceras was well-demarcated for muscle-attachment and it is believed that the jaw movement of Stegoceras and other pachycephalosaurs
Tylocephale
Archaeoceratops oshimai Psittacosaurus mongoliensis Chaoyangosaurus youngi Stegoceras validus Hypsilophodon foxi A phylogenetic hypothesis proposed by Peter
Timeline of ceratopsian research
Timeline_of_ceratopsian_research
Geological formation in New Mexico and Colorado
Campanian), San Juan Basin, New Mexico, with a description of a new species of Stegoceras and a reassessment of Texascephale langstoni" (PDF). Fossil Record 3.
Fruitland_Formation
Geological formation in New Mexico and Colorado, United States
Campanian), San Juan Basin, New Mexico, with a description of a new species of Stegoceras and a reassessment of Texascephale langstoni" (PDF). Fossil Record 3.
Kirtland_Formation
Extinct clade of dinosaurs
present with dimorphic features, many doubt the validity of these claims. Stegoceras validum, a pachycephalosaur, can be segregated into two groups based on
Marginocephalia
The progression of pachycephalosaur research over time
in their 1943 hypothesis that Stegoceras validum exhibited sexual dimorphism. Under Galton's interpretation, as Stegoceras grew the dome expanded until
Timeline of pachycephalosaur research
Timeline_of_pachycephalosaur_research
Extinct genus of dinosaurs
Wannanosaurus yanshiensis Hanssuesia sternbergi Colepiocephale lambei Stegoceras validum Stegoceras novomexicanum Pachycephalosaurinae Goyocephale lattimorei Homalocephale
Goyocephale
Potentially an older specimen of Stegoceras. Hanssuesia sternbergi: Generally believed to be synonymous with Stegoceras. Latenivenatrix mcmasterae: The
List of North American dinosaurs
List_of_North_American_dinosaurs
(2026) compare the cranial musculature and likely feeding performance of Stegoceras validum and other ornithischians, providing evidence of greater similarity
2026 in archosaur paleontology
2026_in_archosaur_paleontology
Provincial park in Alberta, Canada
Euoplocephalus tutus Hypsilophodontidae Orodromeus Pachycephalosauria Stegoceras Tyrannosauridae Daspletosaurus torosus Gorgosaurus libratus Ornithomimidae
Dinosaur_Provincial_Park
a non-dinosaurian archosaur Gravitholus – possible junior synonym of Stegoceras Gremlin Gresslyosaurus – possible junior synonym of Plateosaurus Griphornis
List_of_dinosaur_genera
1993 international animated television series
Machairodus Compsognathus Coelophysis Struthiomimus Protoceratops Mixosaurus Stegoceras The cost per episode for Cadillacs and Dinosaurs was $430,000 with each
Cadillacs and Dinosaurs (TV series)
Cadillacs_and_Dinosaurs_(TV_series)
Extinct genus of dinosaurs
Anasazisaurus horneri and Parasaurolophus cyrtocristatus; the pachycephalosaur Stegoceras novomexicanum (previously S. validum); the ankylosaur Nodocephalosaurus
Titanoceratops
Paleobiology Database Sullivan, R. M. (2003). "Revision of the dinosaur Stegoceras Lambe (Ornithischia, Pachycephalosauridae)". Journal of Vertebrate Paleontology
List of vertebrate fauna of the Campanian stage
List_of_vertebrate_fauna_of_the_Campanian_stage
Geologic formation in west Texas, United States
Paraphyllanthoxylon anasazi Gryposaurus sp. Kritosaurus sp. (Gryposaurus sp.) Stegoceras sp. Deinosuchus sp. Mortoniceras Brancoceras Prionocyclus Coilopoceras
San_Carlos_Formation
Condition in which bones have an abnormally elevated density
Skull dome of Stegoceras (AMNH 5450) showing cross-section thickness
Pachyostosis
Extinct genus of dinosaurs
ceratopsian Unescoceratops and the pachycephalosaurians Stegoceras validum, Stegoceras sternbergi and Stegoceras brevis are known from the formation, though their
Panoplosaurus
Extinct family of bird-like dinosaurs
they were ornithischians and allied them with the pachycephalosaurian Stegoceras in a Troodontidae. It was not until 1945 that C.M. Sternberg recognized
Troodontidae
Fossil-bearing geologic formation in Montana, part of the Judith River Group
to Stegoceras. Hanssuesia H. sternbergi A pachycephalosaurid. Also present in the Dinosaur Park and Oldman Formations. Possible synonym of Stegoceras.
Judith_River_Formation
Extinct genus of dinosaurs
Marginocephalia Pachycephalosauria Stegoceras Ceratopsia Yinlong Xuanhuaceratops Chaoyangsaurus Psittacosaurus P. sinensis P. mongoliensis Neoceratopsia
Aquilops
Used for many horned animals, but most notably ceratopsians. Examples: Stegoceras ('roof horn'); Triceratops ('three-horned face'), Orthoceras ('straight
List of commonly used taxonomic affixes
List_of_commonly_used_taxonomic_affixes
Genus of crustaceans
spinulosa Chevreux, 1919-20 Leucothoe squalidens Ledoyer, 1984 Leucothoe stegoceras Walker, 1904 Leucothoe stylifera Stimpson, 1856 Leucothoe tarte J. L.
Leucothoe_(crustacean)
Extinct family of dinosaurs
Dysalotosaurus -> Dryosaurus -> Wealden ornithopod Camptosaurus Yaverlandia -> Stegoceras -> Pachycephalosaurus Laosaurus Parksosaurus Hypsilophodon Laosaurus minimus
Hypsilophodontidae
Japanese manga series
a pair of unidentified pachycephalosaurs are seen. They may either be Stegoceras or Foraminacephale. Daspletosaurus They are an inhabitant of Australo
Dinosaur_Sanctuary
Ceratopsid dinosaur genus from Late Cretaceous US and Canada
unnamed species of Struthiomimus, the dome-skulled pachycephalosaurids Stegoceras, and Sphaerotholus edmontonensis, the ornithopod Parksosaurus warreni
Pachyrhinosaurus
Genus of hadrosaurid dinosaurs
include the ankylosaurids Ahshislepelta and Ziapelta, the pachycephalosaur Stegoceras, the ceratopsians Terminocavus and Navajoceratops, and the tyrannosauroid
Ahshislesaurus
Geologic formation in Canada
Park Formation A pachycephalosaurid, once thought to be a species of Stegoceras Hanssuesia H. sternbergi Upper, also present in the Dinosaur Park Formation
Oldman_Formation
Theropod dinosaur
Scolosaurus, Euoplocephalus, and Edmontonia; and pachycephalosaurs such as Stegoceras and Foraminacephale.[citation needed] Russell, D. A.; Séguin, R. (1982)
Stenonychosaurus
Interactive simulation by Microsoft
Shunosaurus (off-screen) Silvisaurus (off-screen) Spinosaurus Staurikosaurus Stegoceras (off-screen) Stegosaurus Struthiomimus Styracosaurus Supersaurus (off-screen)
Microsoft_Dinosaurs
Geologic formation in Alberta, Canada
Sciences 39:1553-1577. Sullivan, R.M. 2003. Revision of the dinosaur Stegoceras Lambe (Ornithischia, Pachycephalosauridae). Journal of Vertebrate Paleontology
Milk_River_Formation
Extinct genus of dinosaurs
RSM P 1225.1), Hypsilophodon (NMHUK R5830), Dryosaurus (YPM 1876), and Stegoceras (UALVP 002). Albertadromeus was a small-bodied, bipedal, cursorially adapted
Albertadromeus
Extinct genus of dinosaurs
Anchiceratops, Arrhinoceratops, and Pachyrhinosaurus, pachycephalosaurid Stegoceras, ostrich-mimics Ornithomimus and Struthiomimus, a variety of poorly known
Hypacrosaurus
Canadian paleontologist (born 1960)
papers on Tyrannosaurus, Daspletosaurus, Styracosaurus, Chasmosaurus, Stegoceras, Centrosaurus, Eoceratops, and various other hadrosaurids, ceratopsians
Darren_Tanke
Early Cretaceous dinosaur genus
Marginocephalia Pachycephalosauria Stegoceras Ceratopsia Yinlong Xuanhuaceratops Chaoyangsaurus Psittacosaurus P. sinensis P. mongoliensis Neoceratopsia
Psittacosaurus
Hadrosaurid dinosaur genus from Late Cretaceous US and Canada
ceratopsian Unescoceratops and the pachycephalosaurians Stegoceras validum, Stegoceras sternbergi and Stegoceras brevis are known from the formation, though their
Lambeosaurus
M. (1945). "Pachycephalosauridae proposed for dome-headed dinosaurs, Stegoceras lambei, n. sp., described". Journal of Paleontology. 19 (5): 534–538.
1945_in_paleontology
Ornithischian dinosaur genus from Late Cretaceous US and Canada
suggest that it was a selective feeder. The contemporary pachycephalosaur Stegoceras, in contrast, was probably a more indiscriminate feeder, allowing both
Thescelosaurus
Museum in Drumheller, Alberta, Canada
Ornitholestes on display Prosaurolophus on display Sinraptor dongi on display Two Stegoceras on display Triceratops on display Tyrannosaurus on display Jurassic section
Royal Tyrrell Museum of Palaeontology
Royal_Tyrrell_Museum_of_Palaeontology
Species of mammal
Sections through the skulls of the dinosaur Stegoceras validum (left) and Cephalophus leucogaster (right).
White-bellied_duiker
frontoparietal dome of Stegoceras validum during its ontogeny. Moore et al. (2022) reconstruct the appendicular musculature of Stegoceras validum, and report
2022 in archosaur paleontology
2022_in_archosaur_paleontology
1996 Japanese TV series or program
Raija no Bodīgādo) seem to be made from the fossils of land creatures: 2 Stegoceras, 2 Pteranodons, and 2 prehistoric spiders. Dezzle's Bodyguards (デズル親衛隊
B-Fighter_Kabuto
americana †Stagonolepis †Stegoceras – type locality for genus †Stegoceras novomexicanum – type locality for species †Stegoceras validum †Struthiomimus –
List of the prehistoric life of New Mexico
List_of_the_prehistoric_life_of_New_Mexico
Extinct genus of reptiles
least dense third layer close to the surface. Pachycephalosaurs like Stegoceras also similarly have three layers of bone inside its dome, but the second
Triopticus
Bailleul et al. (2016). Restudies of the fossil material attributed to Stegoceras novomexicanum are published by Williamson & Brusatte (2016) and Jasinski
2016 in archosaur paleontology
2016_in_archosaur_paleontology
Extinct genus of reptile
unknown taphonomic bias. Comparisons with the skulls of Hypsilophodon and Stegoceras led Peter Galton to note that, despite being fused into a single element
Yaverlandia
Geologic formation in Alberta, Canada
Stegoceras
Foremost_Formation
been a rare component of its environment as only two specimens are known Stegoceras - Lawrence M. Lambe 1902 Dinosaur Park Formation (Late Cretaceous, Campanian)
List of Mesozoic bird-line archosaur genera (P–S)
List_of_Mesozoic_bird-line_archosaur_genera_(P–S)
German-born American paleontologist (1956–2026)
2025. Sullivan, Robert M. (11 April 2003). "Revision of the dinosaur Stegoceras Lambe (Ornithischia, Pachycephalosauridae)". Journal of Vertebrate Paleontology
Hans-Dieter_Sues
Extinct genus of dinosaurs
lack of coal swamps. Ahshislepelta coexisted with the pachycephalosaurid Stegoceras, the chasmosaurine ceratopsids Navajoceratops and Terminocavus, the ankylosaurine
Ahshislepelta
Extinct species of dinosaur
Anchiceratops, Arrhinoceratops, and Pachyrhinosaurus, the pachycephalosaurid Stegoceras, the ankylosaurid Euoplocephalus, the nodosaurid Edmontonia, the ornithomimids
Edmontosaurus_regalis
Uppermost member of the Belly River Group geologic unit in Alberta, Canada
Once thought to be a species of Stegoceras Sphaerotholus S. lyonsi Upper, 76.10 ± 0.5 Ma Right squamosal Stegoceras S. validum Specimens including frontoparietal
Dinosaur_Park_Formation
Ceratopsian dinosaur genus from Upper Cretaceous period
saw some pachycephalosaur skulls as indicative for a taxon in between Stegoceras and Pachycephalosaurus; these have not been consistently referred to a
Einiosaurus
"Ngexisaurus" Nomen nudum. Zhao Xijin Ornatotholus Possible junior synonym of Stegoceras. Peter Galton Hans-Dieter Sues Quaesitosaurus Valid taxon Sergei Kurzanov
1983_in_paleontology
Dubious extinct genus of dinosaurs
PMID 29166406. Sullivan, Robert M. (2003). "Revision of the Dinosaur Stegoceras Lambe (Ornithischia, Pachycephalosauridae)". Journal of Vertebrate Paleontology
Trachodon
dinosaurs, Stegoceras lambei, n. sp., described. Journal of Paleontology 19(5):534-538 Sullivan, R. M. (2003). "Revision of the dinosaur Stegoceras Lambe (Ornithischia
List of marginocephalian type specimens
List_of_marginocephalian_type_specimens
Geological formation in North America
analyses as the "Big Bend OTU", most recently considered a kritosaurin Stegoceras S. sp. West Texas Middle Alto Shale Frontal A pachycephalosaur, represents
Aguja_Formation
Vertebrate paleontologist
Forschungstitut Senckenberg, 216: 97-129. 2003. Revision of the dinosaur Stegoceras Lambe (Ornithischia: Pachycephalosauridae). Journal of Vertebrate Paleontology
Robert_M._Sullivan
Genus of ceratopsid dinosaur from North America
saw some pachycephalosaur skulls as indicative for a taxon in between Stegoceras and Pachycephalosaurus; these have not been consistently referred to a
Achelousaurus
Extinct genus of dinosaurs
Dysalotosaurus -> Dryosaurus -> Wealden ornithopod Camptosaurus Yaverlandia -> Stegoceras -> Pachycephalosaurus Laosaurus Parksosaurus Hypsilophodon Laosaurus minimus
Valdosaurus
Campanian Dinosaur Park Formation Alberta A dubious species of ankylosaurid. Stegoceras Gen. et sp. nov. Valid Lambe Campanian Dinosaur Park Formation Alberta
1902_in_paleontology
†Squalicorax pristodontus †Squatirhina †Squatirhina americana †Stegoceras †Stegoceras validum †Stegosaurus †Suuwassea – type locality for genus †Suuwassea
List of the prehistoric life of Montana
List_of_the_prehistoric_life_of_Montana
material of a juvenile pachycephalosaur specimen belonging to the genus Stegoceras from the Campanian Aguja Formation (Texas, United States), providing new
2024 in archosaur paleontology
2024_in_archosaur_paleontology
Geologic formation in North America
Stegoceras
Bearpaw_Formation
locality for genus †Stantoniella cretacea – type locality for species †Stegoceras †Stegoceras validum †Stegosaurus †Stemmatoceras †Stemmatoceras albertense –
List of the Mesozoic life of Montana
List_of_the_Mesozoic_life_of_Montana
Extinct genus of dinosaurs
Paleontology, Geological Survey of Canada 3: 25-81. 1918. The Cretaceous genus Stegoceras typifying a new family referred provisionally to the Stegosauria. Transactions
Zapsalis
Events in the history of paleontology
C.M. (1945). "Pachycephalosauridae proposed for domeheaded dinosaurs, Stegoceras lambei n. sp., described". Journal of Paleontology. 19: 534–538. Tsuihiji
Timeline of troodontid research
Timeline_of_troodontid_research
ISSN 0031-0301. Sullivan, Robert M. (2003-04-11). "Revision of the dinosaurStegoceras Lambe (Ornithischia, Pachycephalosauridae)". Journal of Vertebrate Paleontology
2003_in_paleontology
Formation Canada ( Alberta) A pachycephalosaur, possible Junior synonym of Stegoceras. Maiasaura Valid Horner & Makela Judithian Upper Two Medicine Formation
1979_in_paleontology
Campanian), San Juan Basin, New Mexico, with a description of a new species of Stegoceras and a reassessment of Texascephale langstoni" (PDF). Fossil Record 3.
2011 in archosaur paleontology
2011_in_archosaur_paleontology
Gravitholus albertae and Hanssuesia sternbergi as likely junior synonyms of Stegoceras validum. Han et al. (2023) describe entangled specimens of Psittacosaurus
2023 in archosaur paleontology
2023_in_archosaur_paleontology
is published by Wilson & Scannella (2021). A study on the dentition of Stegoceras validum and Thescelosaurus neglectus, and on its implications for the
2021 in archosaur paleontology
2021_in_archosaur_paleontology
Retrieved April 7, 2015. Sullivan, R.M. (2003). "Revision of the dinosaur Stegoceras Lambe (Ornithischia, Pachycephalosauridae)". Journal of Vertebrate Paleontology
List of Mesozoic bird-line archosaur genera (C–F)
List_of_Mesozoic_bird-line_archosaur_genera_(C–F)
PMC 8361124. PMID 34385481. Sullivan, R.M. (2003). "Revision of the dinosaur Stegoceras Lambe (Ornithischia, Pachycephalosauridae)". Journal of Vertebrate Paleontology
List of Mesozoic bird-line archosaur genera (G–K)
List_of_Mesozoic_bird-line_archosaur_genera_(G–K)
Turonian Ulansuhai Formation China First named as a Troodon species Moved to Stegoceras bexelli (1964) Moved to Tylocephale bexelli (1978) Moved to Sinocephale
1953_in_paleontology
Cretaceous, Campanian) United States ( Texas) Might represent a specimen of Stegoceras Texasetes - Walter P. Coombs Jr. 1995 Paw Paw Formation (Early Cretaceous
List of Mesozoic bird-line archosaur genera (T–Z)
List_of_Mesozoic_bird-line_archosaur_genera_(T–Z)
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