Post by dinosauria101 on May 11, 2019 9:04:48 GMT 5
Archaeotherium mortoni
Archaeotherium (Greek, "Ancient Beast") is an extinct artiodactyl genus of the family Entelodontidae, endemic to North America during the Oligocene epoch (38—24.8 mya), existing for approximately 6 million years. Archaeotherium was about 1.2m tall at the shoulder and around 2m long and weighing around 270kg. It was a relative of javelinas and pigs. Evidence from the Wyoming Dinosaur Center suggests that Archaeotherium, like modern carnivores, kept caches of food when their hunting was unsuccessful. These bones were mainly those of Teleoceras. The largest (and type) species, A. mortoni was an aggressive, cow-sized apex predator. Rhino jaws and other mammal bones have been found with bite marks on them that match the large canines of A. mortoni. A fossil trackway in Toadstool Park depicts the path of a Subhyracodon walking forward, stopping to see an Archaeotherium approach, then breaking into a gallop with the entelodont chasing after it. In leaner times, it is suggested that Archaeotherium dug for roots and tubers, as with other pig-like mammals.
Kentrosaurus aethiopicus
Kentrosaurus is a genus of stegosaurid dinosaur from the Late Jurassic of Tanzania. Its fossils have been found only in the Tendaguru Formation of Tanzania, dated to the Kimmeridgian stage, between about 155.7 ± 4 Ma and 150.8 ± 4 Ma (million years ago). Apparently, all finds belong to one species, K. aethiopicus Hennig 1915. Kentrosaurus was described by German palaeontologist Edwin Hennig in 1915. Often thought to be a primitive member of the Stegosauria, several recent cladistic analyses find it to be derived, and a close relative to Stegosaurus from the North American Morrison Formation. Kentrosaurus generally measured around 4.5 metres (15 ft) to 5.5 meters (18 ft) in length as an adult, weighed at least 1 ton (2,200 lb), probably had a double row of small plates and spikes running down its back, and could use its tail as a "thagomizer" for defense. Kentrosaurus aethiopicus was a small stegosaur, smaller than Stegosaurus armatus, Hesperosaurus mjosi, Dacentrurus armatus and Tuojiangosaurus multispinus, and about as large as Huayangosaurus taibaii. The total length of a composite skeletal mount in the Museum für Naturkunde Berlin, Germany, from the tip of the snout to the tip of the tail is 4.5 m (15 ft). Slightly more than half of this length is made up by the tail. The long tail of Kentrosaurus results in a position of the center of mass that is unusually far back for a quadrupedal animal. It rests just in front of the hip, a position usually seen in bipedal dinosaurs.
Credit to Wikipedia
Archaeotherium (Greek, "Ancient Beast") is an extinct artiodactyl genus of the family Entelodontidae, endemic to North America during the Oligocene epoch (38—24.8 mya), existing for approximately 6 million years. Archaeotherium was about 1.2m tall at the shoulder and around 2m long and weighing around 270kg. It was a relative of javelinas and pigs. Evidence from the Wyoming Dinosaur Center suggests that Archaeotherium, like modern carnivores, kept caches of food when their hunting was unsuccessful. These bones were mainly those of Teleoceras. The largest (and type) species, A. mortoni was an aggressive, cow-sized apex predator. Rhino jaws and other mammal bones have been found with bite marks on them that match the large canines of A. mortoni. A fossil trackway in Toadstool Park depicts the path of a Subhyracodon walking forward, stopping to see an Archaeotherium approach, then breaking into a gallop with the entelodont chasing after it. In leaner times, it is suggested that Archaeotherium dug for roots and tubers, as with other pig-like mammals.
Kentrosaurus aethiopicus
Kentrosaurus is a genus of stegosaurid dinosaur from the Late Jurassic of Tanzania. Its fossils have been found only in the Tendaguru Formation of Tanzania, dated to the Kimmeridgian stage, between about 155.7 ± 4 Ma and 150.8 ± 4 Ma (million years ago). Apparently, all finds belong to one species, K. aethiopicus Hennig 1915. Kentrosaurus was described by German palaeontologist Edwin Hennig in 1915. Often thought to be a primitive member of the Stegosauria, several recent cladistic analyses find it to be derived, and a close relative to Stegosaurus from the North American Morrison Formation. Kentrosaurus generally measured around 4.5 metres (15 ft) to 5.5 meters (18 ft) in length as an adult, weighed at least 1 ton (2,200 lb), probably had a double row of small plates and spikes running down its back, and could use its tail as a "thagomizer" for defense. Kentrosaurus aethiopicus was a small stegosaur, smaller than Stegosaurus armatus, Hesperosaurus mjosi, Dacentrurus armatus and Tuojiangosaurus multispinus, and about as large as Huayangosaurus taibaii. The total length of a composite skeletal mount in the Museum für Naturkunde Berlin, Germany, from the tip of the snout to the tip of the tail is 4.5 m (15 ft). Slightly more than half of this length is made up by the tail. The long tail of Kentrosaurus results in a position of the center of mass that is unusually far back for a quadrupedal animal. It rests just in front of the hip, a position usually seen in bipedal dinosaurs.
Credit to Wikipedia