Results 171 to 180 of about 2,200 (200)
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Osteology of the Patagonian ornithopodTalenkauen santacrucensis(Dinosauria, Ornithischia)
Journal of Systematic Palaeontology, 2019Talenkauen santacrucensis represents one of the most complete South American ornithopods yet discovered.
Rozadilla, Sebastian +2 more
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English hypsilophodontid dinosaurs (Reptilia: Ornithischia)
1975(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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AN OSSIFIED TENDON TRELLIS IN CHASMOSAURUS (ORNITHISCHIA: CERATOPSIDAE)
Journal of Paleontology, 2007The ornithischia and its sister group, the Saurischia, comprise the Dinosauria. Ornithischians (Weishampel, 2004) are a diverse group of primarily quadrupedal herbivores that include such familiar dinosaurs as the armored stegosaurs and ankylosaurs (Thyreophora), as well as the duckbilled hadrosaurs, pachycephalosaurs, and ceratopsians (Cerapoda).
ROBERT HOLMES, CHRISTOPHER ORGAN
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A nest ofProtoceratops andrewsi(Dinosauria, Ornithischia)
Journal of Paleontology, 2011A remarkable specimen of the small neoceratopsian dinosaurProtoceratops andrewsi(Late Cretaceous, Mongolia) reveals the first nest of this genus, complete with fifteen juveniles. The relatively large size of the individuals and their advanced state of development suggests the possibility thatProtoceratopsjuveniles remained and grew in their nests ...
Fastovsky, D. E. +5 more
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Description of the lower jaw of Stegosaurus (Reptilia, Ornithischia)
Annals of the Carnegie Museum, 1986(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Berman, David S., McIntosh, John S.
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The Palatal Structure of some Canadian Hadrosauridae (Reptilia: Ornithischia)
Canadian Journal of Earth Sciences, 1972Two distinct hadrosaurian lineages can be delineated, each showing changes from possible hypsilophodont ancestors. The Hadrosaurinae are typified by moderately vaulted palates, broad pterygoid flanges, large anterior maxillary processes, and non-folded premaxillae, with direct narial passages.
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External and internal structure of ankylosaur (Dinosauria; Ornithischia) osteoderms
2010Here I assess the use of osteoderms in systematics with comparative material from fossil and extant tetrapod taxa. Putative differences among three groups (ankylosaurid, nodosaurid, and polacanthid) were evaluated. Archosaur osteoderms have cortices surrounding a cancellous core.
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