MaiasauraMaiasaura (from the Greek μαῖα, meaning "good mother" and σαύρα, the feminine form of saurus, meaning "reptile") is a large herbivorous saurolophine hadrosaurid ("duck-billed") dinosaur genus that lived in the area currently covered by the state of Montana and the province of Alberta, Canada, in the Upper Cretaceous Period (mid to late Campanian), about 76.7 million years ago. The first remains of Maiasaura were discovered in 1978 by Bynum, Montana resident Laurie Trexler. The genus was named in 1979.
Dilong paradoxusDilong (帝龍, which means 'emperor dragon') is a genus of basal tyrannosauroid dinosaur. The only species in this genus is Dilong paradoxus. It is from the Lower Cretaceous Yixian Formation near Lujiatun, Beipiao, in the western Liaoning province of China. It lived about 126 million years ago. This theropod discovery was significant as it was one of the first tyrannosauroids with fossil evidence of simple feathers. Dilong was described by Xu Xing and colleagues in 2004.
AublysodonAublysodon (“backwards-flowing tooth") is a genus of carnivorous dinosaurs known only from the Judith River Formation in Montana, which has been dated to the late Campanian age of the late Cretaceous period (about 75 million years ago). The only currently recognized species, Aublysodon mirandus, was named by paleontologist Joseph Leidy in 1868. It is sometimes considered dubious now, because the type specimen consists only of an isolated premaxillary (front) tooth.
AppalachiosaurusAppalachiosaurus (ˌæpəˌleɪtʃioʊˈsɔːrəs ; "Appalachian lizard") is a genus of basal eutyrannosaurian theropod dinosaur from the middle Campanian age of the Late Cretaceous period of what is now eastern North America. Like all theropods, it was a bipedal predator. Only a juvenile skeleton has been found, representing an animal approximately long and weighing , which indicates an adult would have been significantly larger. It is the most completely known theropod from eastern North America.
TroodontidaeAutomatic taxobox | name = Troodontids | fossil_range = Middle Jurassic–Late Cretaceous, | image_caption = Collection of four troodontids, clockwise from top left: Mei, unnamed Alaskan troodontid, Jianianhualong, Sinovenator. | image = Troodontidae.jpg | taxon = Troodontidae | authority = Gilmore, 1924 | type_species = Troodon formosus | type_species_authority = Leidy, 1856 | subdivision_ranks = Clade | subdivision = *Albertavenator Almas Archaeornithoides? Geminiraptor Hesperornithoides Jianianhualong Koparion? Liaoningvenator Paronychodon? Papiliovenator Polyodontosaurus Sinornithoides Talos Tochisaurus Xixiasaurus Jinfengopteryginae Sinovenatorinae Troodontinae | synonyms = *Saurornithoididae Barsbold, 1974 Troodontidae tro:.
AllosauroideaAutomatic taxobox | name = Allosauroids | fossil_range = Middle Jurassic–Late Cretaceous, (Possible Late Toarcian and Late Maastrichtian records) | image = Allosaurus skull SDNHM.
FurculaThe furcula (Latin for "little fork") or wishbone is a forked bone found in most birds and some species of non-avian dinosaurs, and is formed by the fusion of the two clavicles. In birds, its primary function is in the strengthening of the thoracic skeleton to withstand the rigors of flight. The furcula works as a strut between a bird's shoulders, and articulates to each of the bird's scapulae. In conjunction with the coracoid and the scapula, it forms a unique structure called the triosseal canal, which houses a strong tendon that connects the supracoracoideus muscles to the humerus.
AlectrosaurusAlectrosaurus (əˌlɛktroʊ-ˈsɔːrəs; meaning "alone lizard") is a genus of tyrannosauroid theropod dinosaur that lived in Asia during the Late Cretaceous period, about some 96 million years ago in what is now the Iren Dabasu Formation. It was a medium-sized, moderately-built, ground-dwelling, bipedal carnivore, estimated at with a body shape similar to its much larger advanced relative, Tyrannosaurus.
GiganotosaurusGiganotosaurus (ˌgɪɡəˌnoʊtəˈsɔːrəs ) is a genus of theropod dinosaur that lived in what is now Argentina, during the early Cenomanian age of the Late Cretaceous period, approximately 99.6 to 95 million years ago. The holotype specimen was discovered in the Candeleros Formation of Patagonia in 1993 and is almost 70% complete. The animal was named Giganotosaurus carolinii in 1995; the genus name translates to "giant southern lizard", and the specific name honors the discoverer, Rubén D. Carolini.
MajungasaurusMajungasaurus (məˌdʒʌŋɡəˈsɔːrəs; Mahajanga lizard) is a genus of abelisaurid theropod dinosaur that lived in Madagascar from 70 to 66 million years ago, at the end of the Cretaceous Period, making it one of the last known non-avian dinosaurs that went extinct during the Cretaceous–Paleogene extinction event. The genus contains a single species, Majungasaurus crenatissimus. This dinosaur is also called Majungatholus, a name which is considered a junior synonym of Majungasaurus.
