... these findings onto a phylogeny of the Dinosauria suggests that endothermy most likely evolved among the Coelurosauria and, to a lesser extent, among the Hypsilophodontidae, but not among the Stegosauridae, Nodosauridae, Ankylosauridae, Hadrosauridae, Ceratopsidae, Prosauropoda, and Sauropoda. 20 06 2002...

... of the original dinosaurian assemblage structure, therefore, is obtained from floodplain and genetically related deposits. These yield eight families of dinosaurs represented in the following proportions: Ceratopsidae, 61%; Hadrosauridae, 23%; Ornithomimidae, 5%; Tyrannosauridae, 4%; Hypsilophodontidae, 3...

... the Hypsilophodontinae ( Hypsilophodon , Dysalotosaurus , and Parksosaurus ) within the Hypsilophodontidae, based on length and robustness of appendicular elements ( Sternberg 1940 ). Given the paraphyletic nature of Hypsilophodontidae ( Scheetz 1998 , 1999 ; Winkler et al. 1998 ; Butler et al. 2008 ; Boyd et al...

... ( Galton 1971 a , b , 1974 ). Ornithischians similar to H. foxii persisted throughout most of the Mesozoic and, until recently, were all united in a ‘family’ Hypsilophodontidae (e.g. Sereno 1986 ; Weishampel & Heinrich 1992 ). Phylogenetic studies indicate that this grouping is artificial...

.... Ludvigsen. UBC Press, Vancouver, B.C., pp. 156–166. Martínez R.D. 1998 Notohypsilophodon comodorensis , gen. et sp. nov., un Hypsilophodontidae (Ornithischia: Ornithopoda) del Cretãcico Superior de Chubut, Patagonia central, Argentina. Acta Geologica Leopoldensia 21 119 135 Maryańska...

...) of China which was originally referred to the Hypsilophodontidae by Simmons (1965 ), was placed with the stegosaurs by Dong (1990 ), and was most recently referred to the basal thyreophoran Scelidosaurus by Lucas (1996 ). The proximal end of the ulna of Lexovisaurus (middle Callovian...

... casts from ornithopod dinosaurs of the families Dryosauridae and Hypsilophodontidae (Reptilia; Ornithischia) : Geologica et Palaeontologica , v. 23 , p. 217 – 239 . Giffin , E.B. , 1989 , Pachycephalosaur paleoneurology (Archosauria...

... and Classification of Birds: A study in Molecular Evolution . Yale University Press , New Haven, Conn . Stidham T.A. 1998 . A lower jaw from a Cretaceous parrot . Nature (London) , 396 : 29 – 30 . Sues H.-D. Norman D.B. 1990 . Hypsilophodontidae, Tenontosaurus, and Dryosauridae...

.... lateral view x 16. Egg shell fragments of sauropod dinosaurs. 6. longitudinal section 7. mammillari surface 8. tuberculated external surface (bar distances equal to 25 j.J. in all three figures). Tooth of Hypsilophodontidae gen. e·t. sp. indet. 9a. external view x 34 9b. internal view x 34. Tooth of Mega...

... Macelognathus to Dinosauria ( Moodie 1908 ), to Reptilia ( Gilmore 1909 ; Mook 1916 ), to Ornithischia ( Simpson 1926 ), to Hypsilophodontidae (Huene 1956), and questionably to Crocodylia or Eosuchia ( Ostrom and McIntosh 1966 ). Most recently, Ostrom ( 1971 ) suggested a crocodylian relationship...

...., and Vickers-Rich, P. 1999. The Hypsilophodontidae from southeastern Australia. In Proceedings of the 2nd Gondwana Dinosaur Symposium. Edited by Y. Tomida, T.H. Rich, and P. Vickers-Rich. National Science Museum Monographs. No. 15. pp. 167–180. Rich P.V. Rich T.H. Wagstaff B.E. Mason J.M...

...), DRO = Dromaeosauridae, ALV = Alvarezsauridae, ENAN = Enantiornithes, ICHT = Ichthyornithiformes, HESP = Hesperonithiformes, NEOR = Neornithes. G8: Ornithischia; STEG = Stegosauria. ANKY = Ankylosauria, CERA = Ceratopsia, PACH = Pachycephalosauria; HE = Heterodontosauridae, HYPS = Hypsilophodontidae...

... , 123 – 43 . Galton , P. M. 1989 . Crania and endocranial casts from ornithopod dinosaurs of the families Dryosauridae and Hypsilophodontidae (Reptilia: Ornithischia) . Geologica et Palaeontologica 23 , 217 – 39 . Galton , P. M. 1990 . Basal Sauropodomorpha –Prosauropoda...

..., Hypsilophodontidae, Theropoda (including Dromaeosauridae, Saurornitholestinae, and Tyrannosauridae)) ( Cullen and Evans 2016 ). The recognition of Gryposaurus sp. increases the number of dinosaur genera known from this unit of the Oldman Formation from non-tooth skeletal material to four, adding...

... . Mechanical design in organisms . Princeton University Press , Princeton, N.J. Weishampel D.B. Heinrich R.E. 1992 . Systematics of Hypsilophodontidae and basal Iguanodontia (Dinosauria: Ornithopoda) . Historical Biology , 6 : 159 – 184 . The entire cranial surface...

... and Vickers-Rich, 1999 )—that of the holotype (NMV P199075) and two additional specimens (NMV P198962, P199087). Originally referred to Hypsilophodontidae, the Q. intrepidus dentary was diagnosed by a combination of three features: possession of 10 cheek teeth; foreshortened morphology; and anteriorly...

...? Discussion of cranial pro - tuberances in the Hadrosauridae : Ann . Mag. Nat . Hist ., v . 11, no . 3, p . 556-560. , 1940, Ceratopsidae from Alberta . Jour. Paleont ., v . 14, no. 5, p . 468-480, 7 figs . 1940, Thescelosaurus edmontonensis, n . sp ., and classification of th e Hypsilophodontidae : Jour...

... group of Northwestern Montana ; U.S . Geol . Surv., Prof . Paper 90-G, p . 61-68 . Sternberg ; C. M., 1940a, Thescelosaurus edmontonensis n . sp ., and classification o f the Hypsilophodontidae ; J. Paleontol ., v . 14, no. 5, p . 481-494 . 1940b, Ceratopsidae from Alberta ; J . Paleontol, v . 14, p...