|
1965 In Paleontology
Archosauromorphs Newly named non-avian dinosaurs Data courtesy of George Olshevsky's dinosaur genera list. Newly named birds Plesiosaurs New taxa References {{Reflist, 30em Paleontology Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fossi ... Paleontology 5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tatisaurus
''Tatisaurus'' is a genus of ornithischian dinosaur from the Early Jurassic from the Lower Lufeng Formation in Yunnan Province in China. Little is known as the remains are fragmentary. The type species is ''T. oehleri''. Discovery and species In 1948 and 1949 Father Edgar Oehler, a Catholic priest working for the Fu Jen Catholic University at Beijing, excavated fossils near the village of Da Di in Yunnan. Among them was the jaw bone of a herbivorous dinosaur. In 1965 David Jay Simmons named and described it as the type species ''Tatisaurus oehleri''. The generic name is derived from Da Di, then more usually spelled as "Ta Ti". The specific name honours Oehler. The holotype, FMNH CUP 2088, was found in the Zhangjiawa Beds of the Lufeng Formation, dating from the Sinemurian. It consists of a partial left mandible with teeth. The lower jaw bone fragment is, lacking the tip, six centimetres long. The teeth are eroded. It is the only specimen known of the species. Simmons assigne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatidae
The Anatidae are the biological family of water birds that includes ducks, geese, and swans. The family has a cosmopolitan distribution, occurring on all the world's continents except Antarctica. These birds are adapted for swimming, floating on the water surface, and in some cases diving in at least shallow water. The family contains around 174 species in 43 genera. (The magpie goose is no longer considered to be part of the Anatidae and is now placed in its own family, Anseranatidae.) They are generally herbivorous, and are monogamous breeders. A number of species undertake annual migrations. A few species have been domesticated for agriculture, and many others are hunted for food and recreation. Five species have become extinct since 1600, and many more are threatened with extinction. Description and ecology The ducks, geese, and swans are small- to large-sized birds with a broad and elongated general body plan. Diving species vary from this in being rounder. Extant s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1965 In Paleontology
Archosauromorphs Newly named non-avian dinosaurs Data courtesy of George Olshevsky's dinosaur genera list. Newly named birds Plesiosaurs New taxa References {{Reflist, 30em Paleontology Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fossi ... Paleontology 5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pistosauroidea
Pistosauroidea is a group of marine reptiles within the superorder Sauropterygia that first appeared in the latter part of the Early Triassic and were the ancestors of plesiosaurs. Pistosauroids are rare in Triassic marine assemblages, and are represented by only a few fossils from central Europe, the United States, and China. Recent phylogenetic analyses consider the Triassic pistosauroids to be a paraphyletic grouping, meaning that they do not form a true clade. Plesiosauria is now placed within Pistosauroidea, while the traditional pistosauroids are successively more basal, or primitive, sauropterygians. Below is a cladogram A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to d ... of pistosauroid relationships from Cheng ''et al.'' (2006): Below is a cladogram of pistosauroid rela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinchenia
''Chinchenia'' is an extinct genus of a basal pistosauroid known from the Middle Triassic (possibly Ladinian age) of Guizhou Province, southwestern China. It contains a single species, ''Chinchenia sungi''. Discovery ''Chinchenia'' is known from at least 4 extremely fragmentary individuals all preserved and collected together. The lectotype of ''Chinchenia'' was chosen to be IVPP V3227, the front end of the left mandible, since that at the time of its original description, its type material was not specified. Other elements from its original description are considered to be paratypes and include the front part of a left lower jaw with 5 broken teeth, 11 neck, six lower back and one sacral vertebrae in various degrees of completeness, 8 unidentified neural arch fragments, many fragments of dorsal and sacral ribs including one proximal part of a left dorsal rib, two right scapulae one of which is very incomplete, two complete humeri, 5 incomplete humeri of which four are d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minerva (bird)
''Minerva'' is an extinct genus of owls in the prehistoric family Protostrigidae from the Eocene of North America. Described in 1915 by Robert Wilson Shufeldt, R. W. Shufeldt, some of the bones of ''Minerva'' were interpreted as belonging to an edentate mammal by Alexander Wetmore in 1933, who assigned the remaining bones to the new genus ''Protostrix''. Analysis in 1983 re-established the genus ''Minerva'' was avian. References Extinct birds of North America Protostrigidae Eocene birds Birds described in 1915 {{Strigiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protostrigidae
Protostrigidae is a prehistoric family of owls which occurred in North America, Europe, and Asia during the Eocene and early Oligocene periods. Genera include ''Eostrix'', ''Minerva'', '' Oligostrix'', and '' Primoptynx.''''Primoptynx poliotauros'':Gerald Mayr, Philip D. Gingerich, Thierry SmithSkeleton of a new owl from the early Eocene of North America (Aves, Strigiformes) with an accipitrid-like foot morphology in: Journal of Vertebrate Paleontology, published online July 28, 2020; doi:10.1080/02724634.2020.1769116. 55-Million-Year-Old Fossil of Large-Sized Owl Found in Wyoming on: sci-news, Jul 31, 2020. In 1983, |
Poway Formation
The Poway Group is a geologic group in San Diego County, Southern California. It preserves fossils dating back to the Paleogene period. Poway clasts Volcanic clastic rock cobbles of rhyolite, in a sandstone matrix in this area are named Poway clasts. The ancient Ballena River brought rhyolite-gravel, or “Poway" clasts, from a region in present-day Sonora, Mexico to the Pacific Ocean. Its sediments deposited into alluvial fan-submarine canyon-submarine fan complex extending for miles offshore. Remnants of submarine fan facies outcrops are found as far west as the northern Channel Islands. Inland Ballena River deposits outcrop discontinuously over in a west-southwest trend from Whale Mountain to San Vicente Reservoir, here the river was up to in width through Peninsular Ranges. Stratigraphy Kennedy and Moore (1971) describe a stratigraphy of up to three geologic formations, Stadium Conglomerate, Mission Valley Formation, and the later named Pomerado Conglomerate. The basal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Eocene
The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "dawn") and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch. The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope 13C in the atmosphere was exceptionally low in comparison with the more common isotope 12C. The end is set at a major extinction event called the ''Grande Coupure'' (the "Great Break" in continuity) or the Eocene–Oligocene extinction event, which may be related to the impact of one or more large bolides in Siberia and in what is now Chesapeake Bay. As with other geologic periods, the strata that define the start and end of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protostrix Californiensis
''Minerva'' is an extinct genus of owls in the prehistoric family Protostrigidae from the Eocene of North America. Described in 1915 by R. W. Shufeldt, some of the bones of ''Minerva'' were interpreted as belonging to an edentate mammal by Alexander Wetmore Frank Alexander Wetmore (June 18, 1886 – December 7, 1978) was an American ornithologist and avian paleontologist. He was the sixth Secretary of the Smithsonian Institution. Early life and education The son of a Country Physician, Frank Al ... in 1933, who assigned the remaining bones to the new genus ''Protostrix''. Analysis in 1983 re-established the genus ''Minerva'' was avian. References Extinct birds of North America Protostrigidae Eocene birds Birds described in 1915 {{Strigiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phalacrocoracidae
Phalacrocoracidae is a family of approximately 40 species of aquatic birds commonly known as cormorants and shags. Several different classifications of the family have been proposed, but in 2021 the IOC adopted a consensus taxonomy of seven genera. The great cormorant (''Phalacrocorax carbo'') and the common shag (''Gulosus aristotelis'') are the only two species of the family commonly encountered in Britain and Ireland and "cormorant" and "shag" appellations have been later assigned to different species in the family somewhat haphazardly. Cormorants and shags are medium-to-large birds, with body weight in the range of and wing span of . The majority of species have dark feathers. The bill is long, thin and hooked. Their feet have webbing between all four toes. All species are fish-eaters, catching the prey by diving from the surface. They are excellent divers, and under water they propel themselves with their feet with help from their wings; some cormorant species have been f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goleta Formation
The Goleta Formation is a geologic formation in Mexico. It preserves fossils. See also * List of fossiliferous stratigraphic units in Mexico This is a list of stratigraphic units (groups, formations and members), containing fossils and pertaining to the North American country of Mexico. List See also * Lists of fossiliferous stratigraphic units in North America References ... References * Geology of Mexico {{Mexico-geologic-formation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
