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Eutretauranosuchus
''Eutretauranosuchus'' is an extinct genus of goniopholidid crocodyliform. ''E. delfsi'' is the only known species within the genus. Discovery and history The holotype, ''Eutretauranosuchus delfsi'', was discovered by Edwin Delfs in 1957 among remains recovered from the Morrison Formation in Canon City, Colorado. It was first described in detail by Charles Mook in 1967. The fossil remains consisted of an almost-complete skull as well as some limb bones. The name ''Eutretauranosuchus'' was given by Delfs upon its discovery in reference to its "doubly pierced palate". The holotype specimen was named ''E. delfsi'' by Mook in tribute to Delfs. Mook found ''E. delfsi'' differs significantly from previously described Mesosuchian crocodiles. This specimen was deemed part of a new species because of its extremely elongated internal narial aperture, which was notably longer than those of previously described specimens of similar size. Mook also described an additional, smaller op ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goniopholis Sp
''Goniopholis'' (meaning "angled scale") is an extinct genus of goniopholidid crocodyliform that lived in Europe and Africa during the Late Jurassic and Early Cretaceous. Being semi-aquatic it is very similar to modern crocodiles. It ranged from 2–4 metres in length, and would have had a very similar lifestyle to the American alligator or Nile crocodile. Discovery and species The type species of the genus is ''G. crassidens'' which is known from the Berriasian of England, and the referable species ''G simus'' from the Berriasian of NW Germany, might be conspecific. Other species that are referable to ''Goniopholis'' include ''G. kiplingi'' from the Berriasian of England, and ''G. baryglyphaeus'' from the Late Jurassic (Kimmeridgian) of Portugal making it the oldest known ''Goniopholis'' species. The species ''G. kiplingi'' honors the author Rudyard Kipling, "in recognition for his enthusiasm for natural sciences". Eggs attributed to ''Goniopholis'' were found in the Late J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goniopholis
''Goniopholis'' (meaning "angled scale") is an extinct genus of goniopholidid crocodyliform that lived in Europe and Africa during the Late Jurassic and Early Cretaceous. Being semi-aquatic it is very similar to modern crocodiles. It ranged from 2–4 metres in length, and would have had a very similar lifestyle to the American alligator or Nile crocodile. Discovery and species The type species of the genus is ''G. crassidens'' which is known from the Berriasian of England, and the referable species ''G simus'' from the Berriasian of NW Germany, might be conspecific. Other species that are referable to ''Goniopholis'' include ''G. kiplingi'' from the Berriasian of England, and ''G. baryglyphaeus'' from the Late Jurassic (Kimmeridgian) of Portugal making it the oldest known ''Goniopholis'' species. The species ''G. kiplingi'' honors the author Rudyard Kipling, "in recognition for his enthusiasm for natural sciences". Eggs attributed to ''Goniopholis'' were found in the Late Jura ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calsoyasuchus
''Calsoyasuchus'' (meaning " r. KyrilCalsoyas' crocodile") is a genus of crocodylomorph that lived in the Early Jurassic. Its fossilized remains were found in the Sinemurian-Pliensbachian-age Kayenta Formation on Navajo Nation land in Coconino County, Arizona, United States. Formally described as ''C. valliceps'', it is known from a single incomplete skull which is unusually derived for such an early crocodile relative. This genus was described in 2002 by Ronald Tykoski and colleagues; the specific name means "valley head" and refers to a deep groove along the midline of the nasal bones and frontal bones. It has often been interpreted as the earliest diverging member of Goniopholididae, but other studies have recovered it in various other positions. Description The holotype skull ( TMM 43631-1) that would be named ''Calsoyasuchus'' was discovered in 1997 by members of an expedition composed of crews from Texas Memorial Museum of the University of Texas at Austin, the Museum of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphicotylus
''Amphicotylus'' is an extinct genus of goniopholidid mesoeucrocodylian from the Tithonian of Colorado, Wyoming, and Oklahoma. It was described in 1878.E. D. Cope. 1878. Descriptions of new extinct Vertebrata from the Upper Tertiary and Dakota Formations. 'Bulletin of the United States Geological and Geographical Survey of the Territories'', 4(2):379-396 Discovery and species ''Amphicotylus'' was first described by Edward Drinker Cope in 1878 based on dorsal and lumbar vertebrae, ribs and osteoderms. Based on these remains, found in the same locality as ''Camarasaurus supremus'', Cope determined the animal to have been smaller in size than the extant American Alligator and named the species ''A. lucasii'' after Superintendent Lucas who initially made the discovery. Cope also collected skull material from the same locality and level, however did not refer it to ''Amphicotylus''. The cranial material was examined by Charles C. Mook in 1942 who referred it to the type species not on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunosuchus
''Sunosuchus'' is an extinct genus of goniopholidid mesoeucrocodylian. Fossils are known from China, Kyrgyzstan, and Thailand and are Jurassic in age, although some may be Early Cretaceous. Four species are currently assigned to the genus: the type species ''S. miaoi'' and the species ''S. junggarensis'', ''S. shartegensis'', and ''S. shunanensis''. All species are from China. '' Goniopholis phuwiangensis'', also from Thailand, was reassigned to ''Sunosuchus'' by Andrade ''et al.'' (2011). The material from Kyrgyzstan has not been assigned to any species. Description ''Sunosuchus'' has a long, narrow snout and a small skull table. Several characters help diagnose ''Sunosuchus'' and distinguish it from other taxa. For example, there are wide pits on the back of the frontal bone. The frontal bone also has a distinctive ridge along part of its midline. The lower jaw has a long symphysis where the two halves come together. This symphysis is formed mostly from the mandibles, but al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goniopholididae
Goniopholididae is an extinct family of moderate-sized semi-aquatic neosuchian crocodyliformes. Their bodyplan and morphology are convergent on living crocodilians. They lived across Laurasia (Asia, Europe and North America) between the Middle Jurassic (possibly Early Jurassic, see below) and the Late Cretaceous. Description Compared to modern crocodilians, goniopholidids are very unusual in several respects. They possessed two rows of rectangular, interlocking osteoderms like those of terrestrial crocodilymorphs like atoposaurids, that are relatively simple, do not extend far in their necks, as opposed to the ornate armours of modern crocodilians; likewise, unlike modern crocodilians but like many extinct forms like phytosaurs, they have ventral osteoderms as well. Their forelimbs are also proportionally very long, particularly in the humeri and wrist bones, being as long or longer than the hindlimbs, the opposite of the condition seen in modern crocodilians. Some like '' Ante ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Jurassic
The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 163.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.Owen 1987. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. In the past, ''Malm'' was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units. Subdivisions The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock: Paleogeography During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the spawning of the Atlantic Ocean. However, at this time, the Atlantic Ocean was relatively narrow. Life forms of the epoch This epoch is well known for many famous types of dinosau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dry Mesa Quarry
The Dry Mesa Dinosaur Quarry is situated in southwestern Colorado, United States, near the town of Delta. Its geology forms a part of the Morrison Formation and has famously yielded a great diversity of animal remains from the Jurassic Period, among them ''Ceratosaurus'', '' Supersaurus'', and ''Torvosaurus''. The quarry is found within the Uncompahgre National Forest. History In 1971, a large theropod phalanx (''Torvosaurus'' ''tanneri'') was discovered at Dry Mesa by Ed and Vivian Jones of Delta, Colorado. The find was reported to James A. Jensen of Brigham Young University (BYU) who commenced quarrying operations in 1972. In 1973, Brigham Young University cooperated with producer Steve Linton and director John Linton in order to produce '' The Great Dinosaur Discovery'', a 1-hour-long color documentary showing Jensen's on-site finds in Dry Mesa. First released on November 13, 1973, in local "Egyptian Theater" in Delta, and subsequently aired on several USA TV channels, ''The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morrison Formation Colorado National Monument
Morrison may refer to: People * Morrison (surname), people with the Scottish surname Morrison * Morrison Heady (1829–1915), American poet * Morrison Mann MacBride (1877–1938), Canadian merchant Places in the United States * Morrison, Colorado * Morrison, Illinois * Morrison, Iowa * Morrison, Missouri * Morrison, Oklahoma * Morrison, Tennessee * Morrison, Wisconsin, a town ** Morrison (community), Wisconsin, an unincorporated community * Morrison County, Minnesota * Morrison Township, Aitkin County, Minnesota Other uses * Clan Morrison, a Scottish clan * Morrison Formation, a distinctive sequence of Upper Jurassic sedimentary rock in the western United States * Morrison Hall, a residential hall at the University of Hong Kong * Webb Horton House, now known as Morrison Hall * Morrison Lake (other) * ''Morrison'', a 19th-century American merchant ship of the Morrison Incident * USS ''Morrison'' (DD-560), a ''Fletcher''-class destroyer sunk in the Pacific in 1945 * ''Ve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Jurassic
The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 163.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.Owen 1987. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. In the past, ''Malm'' was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units. Subdivisions The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock: Paleogeography During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the spawning of the Atlantic Ocean. However, at this time, the Atlantic Ocean was relatively narrow. Life forms of the epoch This epoch is well known for many famous types of dinosau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Jurassic
The Early Jurassic Epoch (geology), Epoch (in chronostratigraphy corresponding to the Lower Jurassic series (stratigraphy), Series) is the earliest of three epochs of the Jurassic Period. The Early Jurassic starts immediately after the Triassic-Jurassic extinction event, 201.3 Ma (million years ago), and ends at the start of the Middle Jurassic 174.1 Ma. Certain rocks of marine origin of this age in Europe are called "Lias Group, Lias" and that name was used for the period, as well, in 19th-century geology. In southern Germany rocks of this age are called Black Jurassic. Origin of the name Lias There are two possible origins for the name Lias: the first reason is it was taken by a geologist from an England, English quarryman's dialect pronunciation of the word "layers"; secondly, sloops from north Cornwall, Cornish ports such as Bude would sail across the Bristol Channel to the Vale of Glamorgan to load up with rock from coastal limestone quarries (lias limestone from S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bone Cabin Quarry
Bone Cabin Quarry is a dinosaur quarry that lay approximately northwest of Laramie, Wyoming near historic Como Bluff. During the summer of 1897 Walter Granger, a paleontologist from the American Museum of Natural History, came upon a hillside littered with Jurassic period dinosaur bone fragments. Nearby was a sheepherder cabin built entirely out of fossil bones, hence the name "Bone Cabin Quarry." After Granger's discovery in late August 1897, the quarry was kept secret until early 1898, when the manpower could be amassed to undertake a full-scale excavation. Henry Fairfield Osborn, curator of the American Museum of Natural History headed the expedition. The bones of perfect skeletons lay thickly crowded. , 483 parts of dinosaur were found, packed in 275 boxes with a weight of . The excavation area was only . Bone Cabin Quarry was excavated from 1898 until 1905, when the productivity of specimens thinned. Some of the dinosaurs found at the Bone Cabin Quarry include ''Stegosaurus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
