Post by dinosauria101 on Jun 26, 2019 9:05:45 GMT 5
Sauroposeidon proteles
Sauroposeidon (/ˌsɔrɵpɵˈsaɪdən/SOR-o-po-SY-dən; meaning "earthquake god lizard", after the Greek god Poseidon) is a genus of sauropod dinosaur known from several incomplete specimens including a bone bed and fossilized trackways that have been found in the US states of Oklahoma, Wyoming, and Texas. The fossils were found in rocks dating to the early Cretaceous, a period when the sauropods of North America had diminished in both size and numbers, making it the last known giant dinosaur on the continent. While the fossils were initially discovered in 1994, due to their unexpected age and unusual size they were initially misclassified as pieces of petrified wood. A more detailed analysis in 1999 revealed their true nature which resulted in a minor media frenzy, and formal publication of the find the following year. Paleoecological analysis indicates that Sauroposeidon lived on the shores of the Gulf of Mexico, in a river delta. Extrapolations based on its more completely known relative Brachiosaurus indicate that the head of Sauroposeidon could reach 17 m (56 ft) in height with its neck extended, making it the tallest known dinosaur. With an estimated length of 32 m (106 ft) and a mass of 60 tonnes (66 short tons), it also ranks among the longest and heaviest. While initially described as a brachiosaurid closely related to Brachiosaurus and Giraffatitan, the discovery of additional remains in the Cloverly Formation of Wyoming suggested that it was in fact more closely related to the titanosaurs, in the group Somphospondyli. Analysis of these remains and comparison with others from Texas supported this conclusion, and demonstrated that the more completely-known sauropods from the Twin Mountains Formation (including a partial skull and fossil trackways) previously named Paluxysaurus jonesi also belonged to Sauroposeidon.
Apatosaurus ajax
Apatosaurus (meaning "deceptive lizard") is a genus of herbivorous sauropod dinosaur that lived in North America during the Late Jurassic period. Othniel Charles Marsh described and named the first-known species, A. ajax, in 1877, and a second species, A. louisae, was discovered and named by William H. Holland in 1916. Apatosaurus lived about 152 to 151 million years ago (mya), during the late Kimmeridgian to early Tithonian age, and are now known from fossils in the Morrison Formation of modern-day Colorado, Oklahoma, New Mexico, Wyoming, and Utah in the United States. Apatosaurus ajax would have averaged from 22 to 37 meters (72 to 122 feet) in length, and would have had an average weight ranging from 20 to over 100 tonnes, based on larger specimens.
Credit to Wikipedia
Sauroposeidon (/ˌsɔrɵpɵˈsaɪdən/SOR-o-po-SY-dən; meaning "earthquake god lizard", after the Greek god Poseidon) is a genus of sauropod dinosaur known from several incomplete specimens including a bone bed and fossilized trackways that have been found in the US states of Oklahoma, Wyoming, and Texas. The fossils were found in rocks dating to the early Cretaceous, a period when the sauropods of North America had diminished in both size and numbers, making it the last known giant dinosaur on the continent. While the fossils were initially discovered in 1994, due to their unexpected age and unusual size they were initially misclassified as pieces of petrified wood. A more detailed analysis in 1999 revealed their true nature which resulted in a minor media frenzy, and formal publication of the find the following year. Paleoecological analysis indicates that Sauroposeidon lived on the shores of the Gulf of Mexico, in a river delta. Extrapolations based on its more completely known relative Brachiosaurus indicate that the head of Sauroposeidon could reach 17 m (56 ft) in height with its neck extended, making it the tallest known dinosaur. With an estimated length of 32 m (106 ft) and a mass of 60 tonnes (66 short tons), it also ranks among the longest and heaviest. While initially described as a brachiosaurid closely related to Brachiosaurus and Giraffatitan, the discovery of additional remains in the Cloverly Formation of Wyoming suggested that it was in fact more closely related to the titanosaurs, in the group Somphospondyli. Analysis of these remains and comparison with others from Texas supported this conclusion, and demonstrated that the more completely-known sauropods from the Twin Mountains Formation (including a partial skull and fossil trackways) previously named Paluxysaurus jonesi also belonged to Sauroposeidon.
Apatosaurus ajax
Apatosaurus (meaning "deceptive lizard") is a genus of herbivorous sauropod dinosaur that lived in North America during the Late Jurassic period. Othniel Charles Marsh described and named the first-known species, A. ajax, in 1877, and a second species, A. louisae, was discovered and named by William H. Holland in 1916. Apatosaurus lived about 152 to 151 million years ago (mya), during the late Kimmeridgian to early Tithonian age, and are now known from fossils in the Morrison Formation of modern-day Colorado, Oklahoma, New Mexico, Wyoming, and Utah in the United States. Apatosaurus ajax would have averaged from 22 to 37 meters (72 to 122 feet) in length, and would have had an average weight ranging from 20 to over 100 tonnes, based on larger specimens.
Credit to Wikipedia
