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Beckius
''Beckius'' is an extinct genus of marine whitefish known from the Early Oligocene of California. It contains a single species, ''B. plicatus'', known only from a single fossilized scale from the Tumey Formation, a lens of the Kreyenhagen Shale The Kreyenhagen Shale is a geologic formation in California. It preserves fossils dating back to the Paleogene period. See also * List of fossiliferous stratigraphic units in California * Paleontology in California Paleontology in California .... The scale was found to resemble those of '' Coregonus'', although significantly different in many ways, leading to its classification as a new genus of Coregoninae. The genus name was later reused in 1992 for a scarab beetle from New Guinea, until it was discovered to be preoccupied; the beetle was thus renamed '' Debeckius''. References {{Taxonbar, from=Q21440044 Salmonidae Fossil taxa described in 1946 Rupelian genera Fossils of California Prehistoric ray-finned fish ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Debeckius
''Debeckius'' is a genus of scarab beetles. It is monotypic, being represented by the single species, ''Debeckius beccarii''. It is native to New Guinea. It was previously assigned to the genus ''Beckius'', but that name was preoccupied by a fossil whitefish. Taxonomy The genus ''Debeckius'' is classified within the tribe Dynastini, known as true rhinoceros beetles. The following subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ... are recognised: * ''Debeckius beccarii beccarii'' (Gestro, 1876) * ''Debeckius beccarii koletta'' (Voirin, 1978) * ''Debeckius beccarii ryusuii'' (Nagai, 2006) References Dynastinae {{Dynastinae-stub Insects described in 2022 Insects of New Guinea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Oligocene
The Rupelian is, in the geologic timescale, the older of two ages or the lower of two stages of the Oligocene Epoch/Series. It spans the time between . It is preceded by the Priabonian Stage (part of the Eocene) and is followed by the Chattian Stage. Name The stage is named after the small river Rupel in Belgium, a tributary to the Scheldt. The Belgian Rupel Group derives its name from the same source. The name Rupelian was introduced in scientific literature by Belgian geologist André Hubert Dumont in 1850. The separation between the group and the stage was made in the second half of the 20th century, when stratigraphers saw the need to distinguish between lithostratigraphic and chronostratigraphic names. Stratigraphic definition The base of the Rupelian Stage (which is also the base of the Oligocene Series) is at the extinction of the foraminiferan genus ''Hantkenina''. An official GSSP for the base of the Rupelian has been assigned in 1992 (Massignano, Italy). The transi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Guinea
New Guinea (; Hiri Motu Hiri Motu, also known as Police Motu, Pidgin Motu, or just Hiri, is a language of Papua New Guinea, which is spoken in surrounding areas of Port Moresby (Capital of Papua New Guinea). It is a simplified version of Motu, from the Austronesian l ...: ''Niu Gini''; id, Papua, or , historically ) is the List of islands by area, world's second-largest island with an area of . Located in Oceania in the southwestern Pacific Ocean, the island is separated from Mainland Australia, Australia by the wide Torres Strait, though both landmasses lie on the same continental shelf. Numerous smaller islands are located to the west and east. The eastern half of the island is the major land mass of the independent state of Papua New Guinea. The western half, known as Western New Guinea, forms a part of Indonesia and is organized as the provinces of Papua (province), Papua, Central Papua, Highland Papua, South Papua, Southwest Papua, and West Papua (province), West ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Ray-finned Fish Genera
Prehistory, also known as pre-literary history, is the period of human history between the use of the first stone tools by hominins 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of symbols, marks, and images appears very early among humans, but the earliest known writing systems appeared 5000 years ago. It took thousands of years for writing systems to be widely adopted, with writing spreading to almost all cultures by the 19th century. The end of prehistory therefore came at very different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. In the early Bronze Age, Sumer in Mesopotamia, the Indus Valley Civilisation, and ancient Egypt were the first civilizations to develop their own scripts and to keep historical records, with their neighbors following. Most other civilizations reached the end of prehistory during the following Iron Age. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossils Of California
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
