Search results
Results from the WOW.Com Content Network
Maiasaura is a characteristic fossil of the middle portion (lithofacies 4) of the Two Medicine Formation, dated from about 86.3 to 70.6 million years ago. [2] Maiasaura lived alongside the troodontids Stenonychosaurus and Troodon and the basal ornithopod Orodromeus, as well as the dromaeosaurid Bambiraptor and the tyrannosaur Daspletosaurus. [2]
This means the dinosaur were primarily feeding on C3 plants which use 3 carbon atoms in their photosynthesis products rather than C4 plants that use four. [23] Reconstruction of a Maiasaura nest with eggs. 1975. Chinese paleontologist Zhao Zhi-Kui began developing the "parataxonomy" that serves as the basis for the scientific classification of ...
One day, a marauding pack of Troodon attack the nesting grounds, snatching and eating the Maiasaura eggs. The mother loses all but two of her eggs, one of which being the egg she saved. When the eggs hatch, one is a male Maiasaura, whom the mother names Light, and the other is a Tyrannosaurus, named Heart.
The earliest potential record of dinosaurs in North America comes from rare, unidentified (possibly theropod) footprints in the Middle-Late Triassic Pekin Formation of North Carolina. [1] However, the most reliable early record of North American dinosaurs comes from fragmentary saurischian fossils unearthed from the Upper Triassic Dockum Group ...
The genus is known from the late Aptian to Albian ages of the Early Cretaceous period sediments of western North America, dating between 115 and 108 million years ago. It contains two species, Tenontosaurus tilletti (described by John Ostrom in 1970 [ 1 ] ) and Tenontosaurus dossi (described by Winkler, Murry, and Jacobs in 1997). [ 2 ]
Its length is estimated to have been about 2 to 2.5 metres (6.6 to 8.2 ft), comparable to the size of a goat. [30] [31] [32] The weight has been estimated to be about 10 to 40 kilograms (22 to 88 lb). [33] Stegoceras was small to medium in size compared to other pachycephalosaurs. [3]
South. Ham – especially country ham – is a more common Christmas main dish in the South than elsewhere in the country, along with sides including mac & cheese and cornbread.Lechon, or spit ...
Skull reconstruction. Olorotitan arharensis is based on the most complete lambeosaurine skeleton found outside North America to date. It was a large hadrosaurid, comparable with other large lambeosaurines such as Parasaurolophus cyrtocristatus, [1] and may have grown up to 8 metres (26 ft) in length, up to 3.5 metres (11 ft) in height and within the range of 2.6–3.4 metric tons (2.9–3.7 ...