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Dinopanorpidae
Dinopanorpidae is a small family of extinct insects in the order Mecoptera (scorpionflies) that contains two genera and seven species. The name is a combination of the Greek ''deino'' meaning "terrible" or "monstrous" and "Panorpidae", the family to which ''Dinopanorpa'' (the type genus of this family) was first assigned. The family was first described in 1972 by paleoentomologist Dr. Frank Carpenter to encompass the genus ''Dinopanorpa'' described by Dr. Theodore D.A. Cockerell in 1924. As with all members of order Mecoptera, dinopanorpids possess an elongated rostrum and four elongated wings of nearly equal size, and uniquely a "R1" vein which almost reaches the apex of the wing. The elongated "R1" vein is a character not found in any other extant or extinct mecopterans. Range The distribution of Dinopanorpidae is restricted both in time and in location. An undescribed species of ''Dinopanorpa'' has been reported from the Paleocene Tadushi Formation, while the type ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinokanaga
''Dinokanaga'' is a small genus of scorpionfly belonging to the extinct family Dinopanorpidae. The six species ''D. andersoni'', ''D. dowsonae'', ''D. hillsi'', ''D. sternbergi'', ''D. webbi'', and ''D. wilsoni'' have all been recovered from Eocene fossil sites in British Columbia, Canada, and Washington state, United States. ''Dinokanaga'' is a combination of the Greek word ''deino'' meaning "terrible" or "monstrous" and ''okanaga'' in reference to the Eocene Okanagan Highlands fossil sites where the specimens have been recovered. The type description of the genus was first published in 2005 by Dr. Bruce Archibald in the ''Canadian Journal of Earth Sciences''. Description of the new genus was based on the study of over 20 compression fossil specimens from five fossil producing locations in the highlands. ''Dinokanaga'' and ''Dinopanorpa'', currently the only known genera in the family Dinopanorpidae, are distinguished by a number of wing vein characters including lack ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinopanorpa
''Dinopanorpa'' is an extinct monotypic genus of scorpionfly that contains the single species ''Dinopanorpa megarche'' and is the type genus of the extinct family Dinopanorpidae. The genus is known from a single hindwing specimen, the holotype, currently deposited in the collections of the National Museum of Natural History, as number "69173", and which was first described by Dr Theodore D.A. Cockerell in 1924. The name is a combination of the Greek ''deino'' meaning "terrible" or "monstrous" and "Panorpa", the type genus of Panorpidae the family in which ''Dinopanorpa'' was first placed. The hindwing was found by A. Kuzentzov in Early Eocene to Early Oligocene Khutsin Formation deposits outcropping along the Kudya River in Primorsky Krai, Russia. The long specimen is a nearly complete compression fossil missing only a small section near the tip of the wing due to a break in the matrix, and having well preserved dark and light coloration. ''Dinopanorpa'' possesses an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mecoptera
Mecoptera (from the Greek language, Greek: ''mecos'' = "long", ''ptera'' = "wings") is an Order (biology), order of insects in the superorder Endopterygota with about six hundred species in nine Family (biology), families worldwide. Mecopterans are sometimes called scorpionflies after their largest family, Panorpidae, in which the males have enlarged genitals raised over the body that look similar to the stingers of scorpions, and long beaklike Rostrum (anatomy), rostra. The Bittacidae, or hangingflies, are another prominent family and are known for their elaborate mating rituals, in which females choose mates based on the quality of gift prey offered to them by the males. A smaller group is the snow scorpionflies, family Boreidae, adults of which are sometimes seen walking on snowfields. In contrast, the majority of species in the order inhabit moist environments in tropical locations. The Mecoptera are closely related to the Siphonaptera (fleas), and a little more distantly to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleocene First Appearances
The Paleocene, ( ) or Palaeocene, is a geological epoch that lasted from about 66 to 56 million years ago (mya). It is the first epoch of the Paleogene Period in the modern Cenozoic Era. The name is a combination of the Ancient Greek ''palaiós'' meaning "old" and the Eocene Epoch (which succeeds the Paleocene), translating to "the old part of the Eocene". The epoch is bracketed by two major events in Earth's history. The K–Pg extinction event, brought on by an asteroid impact and possibly volcanism, marked the beginning of the Paleocene and killed off 75% of living species, most famously the non-avian dinosaurs. The end of the epoch was marked by the Paleocene–Eocene Thermal Maximum (PETM), which was a major climatic event wherein about 2,500–4,500 gigatons of carbon were released into the atmosphere and ocean systems, causing a spike in global temperatures and ocean acidification. In the Paleocene, the continents of the Northern Hemisphere were still connected via ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Insects
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 Iro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Hardwood Forest
The northern hardwood forest is a general type of North American forest ecosystem found over much of southeastern and south-central Canada, Ontario, and Quebec, extending south into the United States in northern New England, New York, and Pennsylvania, and west along the Great Lakes to Minnesota and western Ontario. Some ecologists consider it a transitional forest because it contains species common to both the oak-hickory forest community to the south and the Boreal forest community to the north. The trees and shrub species of the Northern Hardwood Forest are known for their brilliant fall colors, making the regions that contain this forest type popular fall foliage tourist destinations. Sugar maple, yellow birch, American beech, and white ash are the common key indicator tree and shrub species in the Northern Hardwood Forest. Other species include eastern hemlock and eastern white pine. Herb and heath species include wintergreen, wild sarsaparilla, and wood sorrel. Birds and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antecedent (genealogy)
In genealogy and in phylogenetic studies of evolutionary biology, antecedents or antecessors are predecessors in a family line. For example, one is the descendant of their grandparents, who are one's antecedents. This term has particular utility in evolutionary coalescent theory, which models the process of genetic drift in reverse time. The antonym of ''antecedent'' is ''descendant Descendant(s) or descendent(s) may refer to: * Lineal descendant, a consanguinous (i.e. biological) relative directly related to a person ** Collateral descendant, a relative descended from a brother or sister of an ancestor Books * "The Descen ...''. In culture An adoption detective is any licensed or unlicensed person who looks into historic records to locate persons of interest. Clients are children suffering from genealogical bewilderment with a desire to learn something about their genetic antecedents by tracing family lineages to become enlightened about their ancestral social and cultural h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reticulate
Reticulation is a net-like pattern, arrangement, or structure. Reticulation or Reticulated may refer to: * Reticulation (single-access key), a structure of an identification tree, where there are several possible routes to a correct identification * A coloration pattern of some animals (e.g. the reticulated giraffe) * An arrangement of veins in a leaf, with the veins interconnected like a network * The endoplasmic reticulum within a cell, often resembling a net * A phylogenetic network A phylogenetic network is any graph used to visualize evolutionary relationships (either abstractly or explicitly) between nucleotide sequences, genes, chromosomes, genomes, or species. They are employed when reticulation events such as hybrid ..., the result when hybrid speciation, introgression and parapyletic speciation is applied to a phylogenetic tree * Reticulated water (Australia, South Africa), water from a piped network rather than from a bore or well, see: wiktionary:reticulated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil
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 abs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Okanagan Highlands
The Okanagan Highland is an elevated hilly plateau area in British Columbia, Canada, and the U.S. state of Washington (where it is spelled Okanogan Highlands). Rounded mountains with elevations up to above sea level and deep, narrow valleys are characteristic of the region. Definition BC Geographical Names, a service of the British Columbia Integrated Land Management Bureau, defines the Okanagan Highland as an area extending southward from the Shuswap River and the Coldstream Valley, east of Vernon, British Columbia, for 85 miles to the 49th parallel and into the State of Washington, lying between the Monashee Mountains on the east, and the Thompson Plateau and the Okanagan Valley on the west. The eastern boundary of the Okanagan Highland is clearly defined by the valley of the Kettle River. The western boundary is drawn arbitrarily and is somewhat difficult to define, because there are no natural features to follow between Penticton in the Okanagan Valley and Lumby in the Col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ypresian
In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between , is preceded by the Thanetian Age (part of the Paleocene) and is followed by the Eocene Lutetian Age. The Ypresian is consistent with the lower Eocene. Events The Ypresian Age begins during the throes of the Paleocene–Eocene Thermal Maximum (PETM). The Fur Formation in Denmark, the Messel shales in Germany, the Oise amber of France and Cambay amber of India are of this age. The Eocene Okanagan Highlands are an uplands subtropical to temperate series of lakes from the Ypresian. Stratigraphic definition The Ypresian Stage was introduced in scientific literature by Belgian geologist André Hubert Dumont in 1850. The Ypresian is named after the Flemish city of Ypres in Belgium (spelled ''Ieper'' in Dutch). The definitions of the original stage were totally different from the modern ones. The Ypresian shares its name with the Belgian Ieper Group (French: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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