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Qiliania
''Qiliania'' (from the Xiongnu ''qilian'', "heaven") is an extinct genus of early bird from the lower Cretaceous (Aptian stage) about 120 million years ago. It is an enantiornithean which lived in what is now Gansu Province, north-western China. It is known from two incomplete, semi-articulated and three-dimensionally preserved skeletons, which were found in the Xiagou Formation of the Changma Basin. It was first named by Shu-An Ji, Jessie Atterholt, Jingmai O'Connor, Matthew Lamanna, Jerry Harrs, Li Da-Qing, You Hai-Lu and Peter Dodson in 2011 and the type species is ''Qiliania graffini''. The species was named for Greg Graffin, a paleontologist and member of the punk rock group Bad Religion, at the suggestion of coauthor Jingmai O'Connor Jingmai Kathleen O'Connor (; born August 26, 1983) is a paleontologist who works as a curator at the Field Museum. Biography O'Connor is from Pasadena, California. Her mother is a geologist. O'Connor says that while she was not a dinosaur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enantiornithes
The Enantiornithes, also known as enantiornithines or enantiornitheans in literature, are a group of extinct avialans ("birds" in the broad sense), the most abundant and diverse group known from the Mesozoic era. Almost all retained teeth and clawed fingers on each wing, but otherwise looked much like modern birds externally. Over eighty species of Enantiornithes have been named, but some names represent only single bones, so it is likely that not all are valid. The Enantiornithes became extinct at the Cretaceous–Paleogene boundary, along with Hesperornithes and all other non-avian dinosaurs. Discovery and naming The first Enantiornithes to be discovered were incorrectly referred to modern bird groups. For example, the first known species of Enantiornithes, ''Gobipteryx minuta'', was originally considered a paleognath related to ostriches and tinamou. The Enantiornithes were first recognized as a distinct lineage, or "subclass" of birds, by Cyril A. Walker in 1981. Walker mad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enantiornitheans
The Enantiornithes, also known as enantiornithines or enantiornitheans in literature, are a group of extinct avialans ("birds" in the broad sense), the most abundant and diverse group known from the Mesozoic era. Almost all retained teeth and clawed fingers on each wing, but otherwise looked much like modern birds externally. Over eighty species of Enantiornithes have been named, but some names represent only single bones, so it is likely that not all are valid. The Enantiornithes became extinct at the Cretaceous–Paleogene boundary, along with Hesperornithes and all other non-avian dinosaurs. Discovery and naming The first Enantiornithes to be discovered were incorrectly referred to modern bird groups. For example, the first known species of Enantiornithes, '' Gobipteryx minuta'', was originally considered a paleognath related to ostriches and tinamou. The Enantiornithes were first recognized as a distinct lineage, or "subclass" of birds, by Cyril A. Walker in 1981. Walker ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greg Graffin
Gregory Walter Graffin (born November 6, 1964) is an American singer and evolutionary biologist. He is most recognized as the lead vocalist and only constant member of punk rock band Bad Religion, which he co-founded in 1980. He embarked on a solo career in 1997, when he released the album '' American Lesion''. His follow-up album, ''Cold as the Clay'', was released nine years later. His newest solo work is '' Millport'', released in 2017. Graffin obtained his PhD in zoology at Cornell University and has lectured courses in natural sciences at both the University of California, Los Angeles and at Cornell University. Career Bad Religion In 1980, at the age of 15, Graffin and a few high school classmates formed Bad Religion in Southern California's San Fernando Valley. After making a name for themselves in the Los Angeles punk scene, releasing two EPs and two full-length albums, they disbanded around 1985. However, Bad Religion reformed in 1986 with a new line-up, consisting o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jingmai O'Connor
Jingmai Kathleen O'Connor (; born August 26, 1983) is a paleontologist who works as a curator at the Field Museum. Biography O'Connor is from Pasadena, California. Her mother is a geologist. O'Connor says that while she was not a dinosaur enthusiast as a child, being present for her mother's geology fieldwork began her interest in the subject. She explains, "I enjoyed going to the field with her, collecting rocks, minerals, and fossils, and playing in the lab." O'Connor graduated from Occidental College after majoring in Geology and studying with Donald Prothero. While a student, she volunteered in the paleontology department of the Natural History Museum of Los Angeles County, working with Xiaoming Wang. She received a Ph.D. from the University of Southern California in 2009, studying ancient birds with Luis M. Chiappe and Dr. David Bottjer. Paleontology After obtaining her Ph.D., O'Connor moved to Beijing where she worked as a postdoc at the Institute of Vertebrate Paleon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xiagou Formation
The Xiagou Formation is the middle strata of the Xinminbao Group. It is named for its type site in Xiagou, in the Changma Basin of Gansu Province, northwestern China and is considered Early Cretaceous in age. It is known outside the specialized world of Chinese geology as the site of a Lagerstätte in which the fossils were preserved of '' Gansus yumenensis'', the earliest true modern bird. Description The laminated yellowish mudstones of the Xiagou Formation are the lithified remnants of varves that were laid down as extremely fine silt settled to the bottom of a tranquil freshwater lake. The result was dense anoxic bottom sediment, where the lack of bacteria slowed the processes of decay, preserving uncompressed fossils in details that include feather impressions and remnants of the webbing between the bird's toes. The age of the formation has not yet been confidently determined. The underlying Chijinpu Formation is likely the same age as the Jehol Group due to the presence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Cretaceous Birds Of Asia
{{disambiguation, geo ...
Early may refer to: History * The beginning or oldest part of a defined historical period, as opposed to middle or late periods, e.g.: ** Early Christianity ** Early modern Europe Places in the United States * Early, Iowa * Early, Texas * Early Branch, a stream in Missouri * Early County, Georgia Other uses * ''Early'' (Scritti Politti album), 2005 * ''Early'' (A Certain Ratio album), 2002 * Early (name) * Early effect, an effect in transistor physics * Early Records, a record label * the early part of the morning See also * Earley (other) Earley is a town in England. Earley may also refer to: * Earley (surname), a list of people with the surname Earley * Earley (given name), a variant of the given name Earlene * Earley Lake, a lake in Minnesota *Earley parser, an algorithm *Earley ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bad Religion
Bad Religion is an American punk rock band that formed in Los Angeles, California, in 1980. The band's lyrics cover topics related to religion, politics, society, the media and science. Musically, they are noted for their melodic sensibilities and extensive use of three-part vocal harmonies. The band has experienced multiple line-up changes, with singer Greg Graffin being the band's only constant member, though fellow founding members Jay Bentley and Brett Gurewitz have also been with the band for most of their history while guitarist Brian Baker (musician), Brian Baker has been a member of the group since 1994. Guitarist Mike Dimkich and drummer Jamie Miller (US musician), Jamie Miller have been members of the band since 2013 and 2015 respectively. To date, Bad Religion has released seventeen studio albums, two live albums, three compilation albums, three EPs, and two live DVDs. They are considered to be one of the best-selling punk rock acts of all time, having sold over fiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen(s). Article 67.1 A similar concept is used for suprageneric groups and called a type genus. In botanical nomenclature, these terms have no formal standing under the code of nomenclature, but are sometimes borrowed from zoological nomenclature. In botany, the type of a genus name is a specimen (or, rarely, an illustration) which is also the type of a species name. The species name that has that type can also be referred to as the type of the genus name. Names of genus and family ranks, the various subdivisions of those ranks, and some higher-rank names based on genus names, have such types. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Dodson
Peter Dodson (born August 20, 1946) is an American paleontologist who has published many papers and written and collaborated on books about dinosaurs. An authority on Ceratopsians, he has also authored several papers and textbooks on hadrosaurs and sauropods, and is a co-editor of ''The Dinosauria'', widely considered the definitive scholarly reference on dinosaurs. Dodson described ''Avaceratops'' in 1986; ''Suuwassea'' in 2004, and many others, while his students have named ''Paralititan'' and '' Auroraceratops''. He has conducted field research in Canada, the United States, India, Madagascar, Egypt, Argentina, and China. A professor of vertebrate paleontology and of veterinary anatomy at the University of Pennsylvania, Dodson has also taught courses in geology, history, history and sociology of science, and religious studies. Dodson is also a research associate at the Academy of Natural Sciences. In 2001, two former students named an ancient frog species, '' Nezpercius dodsoni' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matt Lamanna
Matthew Carl Lamanna is a paleontologist and the assistant curator of vertebrate paleontology at the Carnegie Museum of Natural History, where he oversees the dinosaur collection. Education Lamanna graduated from Hobart College in Geneva, New York in 1997. He received high honors in biology and geology. Lamanna went on to get his M.A. and Ph.D. in earth and environmental science from the University of Pennsylvania. Discoveries Lamanna first gained fame for the 2000 discovery of '' Paralititan'' in Egypt, called by some as the "largest dinosaur ever discovered". The sauropod was 80 feet long and weighed between 40 and 50 tons. The discovery was the feature of a 2-hour A&E documentary '' The Lost Dinosaurs of Egypt''. Beginning in 2004, Lamanna began work on a series of digs in China. The result, first published in the journal ''Science'' in June 2006, was the discovery of ''Gansus yumenensis ''Gansus'' is a genus of aquatic birds that lived during the Aptian age of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Cretaceous
The Early Cretaceous ( geochronological name) or the Lower Cretaceous (chronostratigraphic name), is the earlier or lower of the two major divisions of the Cretaceous. It is usually considered to stretch from 145 Ma to 100.5 Ma. Geology Proposals for the exact age of the Barremian-Aptian boundary ranged from 126 to 117 Ma until recently (as of 2019), but based on drillholes in Svalbard the defining early Aptian Oceanic Anoxic Event 1a (OAE1a) was carbon isotope dated to 123.1±0.3 Ma, limiting the possible range for the boundary to c. 122–121 Ma. There is a possible link between this anoxic event and a series of Early Cretaceous large igneous provinces (LIP). The Ontong Java-Manihiki-Hikurangi large igneous province, emplaced in the South Pacific at c. 120 Ma, is by far the largest LIP in Earth's history. The Ontong Java Plateau today covers an area of 1,860,000 km2. In the Indian Ocean another LIP began to form at c. 120 Ma, the Kerguelen P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skeleton
A skeleton is the structural frame that supports the body of an animal. There are several types of skeletons, including the exoskeleton, which is the stable outer shell of an organism, the endoskeleton, which forms the support structure inside the body, and the hydroskeleton, a flexible internal skeleton supported by fluid pressure. Vertebrates are animals with a vertebral column, and their skeletons are typically composed of bone and cartilage. Invertebrates are animals that lack a vertebral column. The skeletons of invertebrates vary, including hard exoskeleton shells, plated endoskeletons, or Sponge spicule, spicules. Cartilage is a rigid connective tissue that is found in the skeletal systems of vertebrates and invertebrates. Etymology The term ''skeleton'' comes . ''Sceleton'' is an archaic form of the word. Classification Skeletons can be defined by several attributes. Solid skeletons consist of hard substances, such as bone, cartilage, or cuticle. These can be further ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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