In 1909, an Apatosaurus skull was found, during the first expedition to what would become the Carnegie Quarry at Dinosaur National Monument, led by Earl Douglass. Marsh, a professor of paleontology at Yale University, announced the discovery of a large and fairly complete sauropod skeleton from Morrison Formation rocks at Como Bluff, Wyoming. Check out our cool Brachiosaurus facts for kids. The length of time taken for Riggs' 1903 reclassification of Brontosaurus as Apatosaurus to be brought to public notice, as well as Osborn's insistence that the Brontosaurus name be retained despite Riggs' paper, meant that the Brontosaurus became one of the most famous dinosaurs. The name Apatosaurus means deceptive lizard. High Quality, entertaining and educational videos. It was accepted as belonging to the Apatosaurus specimen by Douglass and Carnegie Museum director William H. Holland, although other scientists, most notably Osborn, rejected this identification. LONG-NECKED DINOSAURS FACTS | DINO PARK - fun dinosaur facts for kids with Daddy Donut - Duration: 3:52. The Brachiosaurus was discovered in 1900, by Elmer S. Riggs in Colorado, USA. Other predictions were that it could be for feeding, but the most probable is that the claw was for grasping objects like tree trunks when rearing. The name Brachiosaurus is … While some thought Holland was attempting to avoid conflict with Osborn, others suspected that Holland was waiting until an articulated skull and neck were found to confirm the association of the skull and skeleton. Brontosaurus was a large, long-necked quadrupedal animal with a long, whip-like tail, and forelimbs that were slightly shorter than their hindlimbs. The skull also included forward-pointing nasals, something truly different to any dinosaur, and fenestrae differing from the drawing and other skulls. Find free pictures, photos, drawings, images and information related to a wide range of dinosaurs right here at Science Kids. Brontosaurus, like its close relative Apatosaurus, had tall spines on its vertebrae, which make up more than half the height of the individual bones. The Apatosaurus lived between 156 and 151 million years ago, during the late Jurassic Period. The meaning of their name is 'arm reptiles'. 17 Brachiosaurus Facts for Kids. Trackways of sauropods like Brontosaurus show that the average range for them was around 20–40 km (12–25 mi) per day, and they could potentially reach a top speed of 20–30 km (12–19 mi) per hour. The large neck was filled with an extensive system of weight-saving air sacs. Elmer Riggs, in the 1903 edition of Geological Series of the Field Columbian Museum, argued that Brontosaurus was not different enough from Apatosaurus to warrant its own genus, so he created the new combination Apatosaurus excelsus for it. It could weigh as much as 50,000 pounds and measure up to 74 feet from its head to its tail. Paleontologist Michael D'Emic made a critique. As a genus, Brontosaurus existed for a long span of time, and have been found in most levels of the Morrison. As late as 1989, the U.S.