|
Traskasaura
''Traskasaura'' (meaning "Trask lizard") is an extinct genus of Basal (phylogenetics), basal elasmosaurid plesiosaurs from the Late Cretaceous (Santonian age) Haslam Formation of British Columbia, Canada. The genus contains a Monotypic taxon, single species, ''Traskasaura sandrae'', known from three partial skeletons. It is the first elasmosaurid discovered in and named from British Columbia. Discovery and naming The ''Traskasaura'' fossil material was discovered in outcrops of the Haslam Formation (Nanaimo Group) on Vancouver Island of British Columbia, Canada. The first discovered specimen was found in November 1988 by Michael Trask and his daughter Heather on the bank of the Puntledge River near Courtenay, British Columbia, Courtenay. Supported by Grant (money), grants from the province of British Columbia, the specimen began to be excavated and studied by Trask with assistance from paleontologists Rolf Ludvigsen and Elizabeth Nicholls. More than 40 local volunteers also as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2025 In Reptile Paleontology
This catalog of fossil reptile research published in 2025 includes a list of new taxa that were Species description, described during the year 2025, as well as other significant discoveries and events related to reptile paleontology that occurred in 2025. Squamates New squamate taxa Squamate research * A study on the biogeography of squamates throughout their evolutionary history is published by Wilenzik & Pyron (2025), who identify Europe and northeastern Asia as the most likely areas of the origin of Squamata. * Brownstein et al. (2025) argue that the common ancestor of extant night lizards originated before the Cretaceous–Paleogene extinction event and that members of the group survived the extinction in spite of living in the areas close to the site of the Chicxulub crater, Chicxulub impact crater. * Jiang et al. (2025) review the taxonomic composition, phylogenetic affinities, morphological diversity and geographical distribution of polyglyphanodontians. * Santos et a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haslam Formation
The Haslam Formation is a black shale geologic formation exposed on Vancouver Island and the Gulf Islands, British Columbia, Canada. It preserves primarily marine fossils dating back to the Santonian age of the late Cretaceous period, including specimens of the elasmosaurid ''Traskasaura ''Traskasaura'' (meaning "Trask lizard") is an extinct genus of Basal (phylogenetics), basal elasmosaurid plesiosaurs from the Late Cretaceous (Santonian age) Haslam Formation of British Columbia, Canada. The genus contains a Monotypic taxon, sin ...''. See also * List of fossiliferous stratigraphic units in British Columbia References Cretaceous British Columbia Geologic formations of British Columbia Shale formations of Canada {{BritishColumbia-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elasmosaurid
Elasmosauridae, often called elasmosaurs or elasmosaurids, is an extinct family of plesiosaurs that lived from the Hauterivian stage of the Early Cretaceous to the Maastrichtian stage of the Late Cretaceous period (c. 130 to 66 mya). The taxon was initially erected in 1869 by Edward Drinker Cope to include the type genus '' Elasmosaurus'' with the related '' Cimoliasaurus'', although he did not argued in detail why. Over the following years, many authors recognized this classification on the basis of predominantly postcranial features, becoming one of the three groups in which plesiosaurs were often classified during the 19th century, along with the Pliosauridae and the Plesiosauridae. However, most of these traits led to many genera since recognized as belonging to other plesiosaur families being classified as elasmosaurids. Another family historically considered as distinct, the Cimoliasauridae, has since 2009 been recognized as a junior synonym of the Elasmosauridae. Along ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Cretaceous
The Late Cretaceous (100.5–66 Ma) is the more recent of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the Latin word for the white limestone known as chalk. The chalk of northern France and the white cliffs of south-eastern England date from the Cretaceous Period. Climate During the Late Cretaceous, the climate was warmer than present, although throughout the period a cooling trend is evident. The tropics became restricted to equatorial regions and northern latitudes experienced markedly more seasonal climatic conditions. Geography Due to plate tectonics, the Americas were gradually moving westward, causing the Atlantic Ocean to expand. The Western Interior Seaway divided North America into eastern and western halves; Appalachia and Laramidia. India maintained a northward course towards Asia. In the Southern Hemisphere, Aus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humerus
The humerus (; : humeri) is a long bone in the arm that runs from the shoulder to the elbow. It connects the scapula and the two bones of the lower arm, the radius (bone), radius and ulna, and consists of three sections. The humeral upper extremity of humerus, upper extremity consists of a rounded head, a narrow neck, and two short processes (tubercles, sometimes called tuberosities). The body of humerus, body is cylindrical in its upper portion, and more prism (geometry), prismatic below. The lower extremity of humerus, lower extremity consists of 2 epicondyles, 2 processes (trochlea of the humerus, trochlea and capitulum of the humerus, capitulum), and 3 fossae (radial fossa, coronoid fossa, and olecranon fossa). As well as its true anatomical neck, the constriction below the greater and lesser tubercles of the humerus is referred to as its Surgical neck of the humerus, surgical neck due to its tendency to fracture, thus often becoming the focus of surgeons. Etymology The word ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elasmosaurus Skeleton
''Elasmosaurus'' () is a genus of plesiosaur that lived in North America during the Campanian stage of the Late Cretaceous period, at about 80.6 to 77million years ago. The first specimen was discovered in 1867 near Fort Wallace, Kansas, US, and was sent to the American paleontologist Edward Drinker Cope, who named it ''E.platyurus'' in 1868. The generic name means "thin-plate reptile", and the specific name means "flat-tailed". Cope originally reconstructed the skeleton of ''Elasmosaurus'' with the skull at the end of the tail, an error which was made light of by the paleontologist Othniel Charles Marsh, and became part of their "Bone Wars" rivalry. Only one incomplete ''Elasmosaurus'' skeleton is definitely known, consisting of a fragmentary skull, the spine, and now lost pectoral and pelvic girdles, and a single species is recognized today; other species are now considered invalid or have been moved to other genera. A fragmentary specimen from Germany may belong to this genus. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Name
In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammar, Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (often shortened to just "binomial"), a binomen, name, or a scientific name; more informally, it is also called a Latin name. In the International Code of Zoological Nomenclature (ICZN), the system is also called nomenclature, with an "n" before the "al" in "binominal", which is a typographic error, meaning "two-name naming system". The first part of the name – the ''generic name (biology), generic name'' – identifies the genus to which the species belongs, whereas the second part – the specific name or specific epithet – distinguishes the species within the genus. For example, modern humans belong to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academic Conference
An academic conference or scientific conference (also congress, symposium, workshop, or meeting) is an Convention (meeting), event for researchers (not necessarily academics) to present and discuss their scholarly work. Together with academic journal, academic or scientific journals and preprint archives, conferences provide an important channel for exchange of information between researchers. Further benefits of participating in academic conferences include learning effects in terms of presentation skills and "academic Habitus (sociology), habitus", receiving feedback from peers for one's own research, the possibility to engage in informal communication with peers about work opportunities and collaborations, and getting an overview of current research in one or more Academic discipline, disciplines. The first international academic conferences and congresses appeared in 19th century. Overview Conferences usually encompass various presentations. They tend to be short and conci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abstract (summary)
An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose. When used, an abstract always appears at the beginning of a manuscript or typescript, acting as the point-of-entry for any given academic paper or patent application. Abstracting and indexing services for various academic disciplines are aimed at compiling a body of literature for that particular subject. The terms ''précis'' or ''synopsis'' are used in some publications to refer to the same thing that other publications might call an "abstract". In management reports, an '' executive summary'' usually contains more information (and often more sensitive information) than the abstract does. Purpose and limitations Academic literature uses the abstract to succinctly communicate complex research. An abstract may act as a stand-alone entity instead of a full paper. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Description
A species description is a formal scientific description of a newly encountered species, typically articulated through a scientific publication. Its purpose is to provide a clear description of a new species of organism and explain how it differs from species that have been previously described or related species. For a species to be considered valid, a species description must follow established guidelines and naming conventions dictated by relevant nomenclature codes. These include the International Code of Zoological Nomenclature (ICZN) for animals, the International Code of Nomenclature for algae, fungi, and plants (ICN) for plants, and the International Committee on Taxonomy of Viruses (ICTV) for viruses. A species description often includes photographs or other illustrations of type material and information regarding where this material is deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Society Of Vertebrate Paleontology
The Society of Vertebrate Paleontology (SVP) is a professional organization that was founded in the United States in 1940 to advance the science of vertebrate paleontology around the world. Mission and activities SVP has about 2,300 members internationally and holds annual scientific conferences in North America and elsewhere. It is organized for educational and scientific purposes with a mission to "advance the science of vertebrate paleontology and to serve the common interests and facilitate the cooperation of all persons concerned with the history, evolution, comparative anatomy, and taxonomy of vertebrate animals, as well as field occurrence, collection, and study of fossil vertebrates and the stratigraphy of the beds in which they are found." SVP is also concerned with the conservation and preservation of fossil sites. SVP publications include the '' Journal of Vertebrate Paleontology'', the ''SVP Memoir Series'', the ''News Bulletin'', the''Bibliography of Fossil Vertebrate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
