Brontosaurus also had very long ribs compared to most other diplodocids, giving them unusually deep chests. In fact, Brontosaurus often appears as a synonym for Dinosaur itself. It had a relatively small tail compared to other Sauropods, reached around 26 metres (85 feet) in length and even had an asteroid named after it. They found that though he never published his opinion, Holland was almost certainly correct, that Apatosaurus (and Brontosaurus) had a Diplodocus-like skull. Apatosaurus lived in the late Jurassic period, 150 million years ago. Dr. Marsh gave it the name Brontosaurus, which means 'Thunder Lizard'. The Brachiosaurus got its scientific name Brachiosaurus altithorax 1903, by Elmer S. Riggs. Brontosaurus m [von griech. Named Brontosaurus in 1879, the dinosaur was at first considered so unique that scientists thought it deserved to be classified in a group of its own. You pronounce their name 'brack-ee-ow-sor-us'. The limb bones were also very robust. Even if you look at several types of cats, you can see differences in color, coat length, and personality! The name Apatosaurus means deceptive lizard. Othniel Charles Marsh first described the Apatosaurus in 1877 and gave it the scientific name Apatosaurus ajax. Weight: 2,200 pounds (average) 21 Allosaurus Facts for Kids The Allosaurus was discovered in 1877, by Othniel Charles Marsh in Colorado, USA. The cervical vertebrae were stouter than other diplodocids, though not as stout as in mature specimens of Apatosaurus. The Apatosaurus lived between 156 and 151 million years ago, during the late Jurassic Period. LONG-NECKED DINOSAURS FACTS | DINO PARK - fun dinosaur facts for kids with Daddy Donut - Duration: 3:52. According to studies, it took an Apatosaurus only around 10 years to reach its full size. Paleontologist Michael D'Emic made a critique. Apatosaurus was represented in the popular Transformers toy line and animated series as Sludge, an Autobot that could transform into an Apatosaurus form. This was not a delicate skull like that of Diplodocus, which would later turn out to be more accurate, but was based on "the biggest, thickest, strongest skull bones, lower jaws and tooth crowns from three different quarries". Brontosaurus may have been a more solitary animal than other Morrison Formation dinosaurs. Brontosaurus was about 75 feet tall and weighed 23 tons. The arm bones are stout, with the humerus resembling that of Camarasaurus, and those of B. excelsus being nearly identical to those of Apatosaurus ajax. Postal Service caused controversy when it issued four "dinosaur" stamps: Tyrannosaurus, Stegosaurus, Pteranodon, and Brontosaurus. Brontosaurus was a large, long-necked quadrupedal animal with a long, whip-like tail, and forelimbs that were slightly shorter than their hindlimbs. The Morrison Formation is a sequence of shallow marine and alluvial sediments which, according to radiometric dating, ranges between 156.3 million years old (Mya) at its base, and 146.8 Mya at the top, which places it in the late Oxfordian, Kimmeridgian, and early Tithonian stages of the Late Jurassic period. The flora of the period has been revealed by fossils of green algae, fungi, mosses, horsetails, cycads, ginkgoes, and several families of conifers. This page was last modified on 5 December 2020, at 13:49. In 2011, the first specimen of Apatosaurus where a skull was found articulated with its cervical vertebrae was described. Shells of bivalves and aquatic snails are also common. Later paleontologists decided this was a mistake and that the Brontosaurus and the Apatosaurus were the same dinosaur. Brontosaurus had a single large claw on each forelimb, and the first three toes possessed claws on each foot. To find out more about these amazing animals, study the lesson called Brontosaurus Facts: Lesson for Kids. The Postal Service defended itself (in Postal Bulletin 21744) by saying, "Although now recognized by the scientific community as Apatosaurus, the name Brontosaurus was used for the stamp because it is more familiar to the general population." Since then, several specimens have been found in parts of Colorado, Oklahoma and Utah. Brontosaurus was once thought a later name for Apatosaurus, but is now proved to be a separate genus.. Apatosaurus grew as big as 21 meters long, 4.5 meters tall at the hip, and weighed up to 23 metric tons. Brontosaurus was a large sauropod, a group of typically large dinosaurs with long necks and long tails. Myhrvold carried out a computer simulation of the tail, which in diplodocids like Brontosaurus was a very long, tapering structure resembling a bullwhip. It was first discovered in 1879 by Othniel Charles Marsh. In 1905, the American Museum of Natural History (AMNH) unveiled the first-ever mounted skeleton of a sauropod, a composite specimen (mainly made of bones from AMNH 460) that they referred to as the species Brontosaurus excelsus. To complete the mount, the rest of the tail was fashioned to appear as Marsh believed it should, which had too few vertebrae. Brachiosaurus Facts for Kids, Students and Adults: Conclusion. google_ad_slot = "5655995158"; Apatosaurus is a dinosaur which lived approximately 150 million years ago during the Jurassic Period. As late as 1989, the U.S. In 1995, the American Museum of Natural History followed suit, and unveiled their remounted skeleton (now labelled Apatosaurus excelsus) with a corrected tail and a new skull cast from A. louisae. The Brontosaurus skeleton was discovered in 1874 by Dr. Marsh. They assigned two former Apatosaurus species, A. parvus and A. yahnahpin, to Brontosaurus, as well as the type species B. excelsus. Charles Gilmore in 1936 noted that previous reconstructions erroneously proposed that the radius and ulna could cross, when in life they would have remained parallel. 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. Diplodocids like Brontosaurus are often portrayed with their necks held high up in the air, allowing them to browse on tall trees. McCay based his unidentified dinosaur on the apatosaurine skeleton in the American Museum of Natural History. google_ad_client = "pub-4643150179421087"; Apatosaurus was a plant eating (herbivore) dinosaur. Indeed, the Postal Service even implicitly rebuked the somewhat inconsistent complaints by adding that "[s]imilarly, the term 'dinosaur' has been used generically to describe all the animals [i.e., all four of the animals represented in the given stamp set], even though the Pteranodon was a flying reptile [rather than a true 'dinosaur']," a distinction left unmentioned in the numerous correspondence regarding the Brontosaurus/Apatosaurus issue. brontē = Donner, sauros = Echse], Atlantosaurus, "Donnerechse", heute gültiger Name Apatosaurus, zu den sauropoden Dinosauriern gehörendes pflanzenfressendes Reptil aus dem oberen Jura und der unteren Kreide Nordamerikas; mit einem sehr kleinen Schädel sowie langen, peitschenförmigen Schwanz und Hals; mit ca. /* sci facts 728 */ Also known as the Brontosaurus, this giant dinosaur is one of the largest animals to have walked on Earth, reaching an amazing 23m (75ft) in length and 23 tons in weight. Additional remains are known from even younger rocks, but they have not been identified as any particular species. The largest species, B. excelsus, weighed up to 15 tonnes (15 long tons; 17 short tons) and measured up to 22 m (72 ft) long from head to tail. The name Brontosaurus is pronounced: "BRONT-uh-SAWR-us". Find free pictures, photos, drawings, images and information related to a wide range of dinosaurs right here at Science Kids. At the Yale Peabody Museum, a skeleton was mounted in 1931 with a skull unique from all the others. This dinosaur is best known for its large neck, which serves as sort of a counter balance for its long tail. The Brontosaurus and Apatosaurus are from the same family and biblical kind (Genesis 1:24), and fossil records from both of them show the beauty of God’s creation. Made in Australia.