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Paralogidae
Paralogidae is an extinct family of griffinfly in the order Meganisoptera. There are at least two genera and three described species in Paralogidae. Genera These three genera belong to the family Paralogidae: * † '' Oligotypus'' Carpenter 1931 * † '' Paralogus'' Scudder 1893 * † '' Truemania'' Bolton 1934 References Meganisoptera Prehistoric insect families Carboniferous insects {{Paleo-insect-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meganisoptera
Meganisoptera is an extinct order of large dragonfly-like insects, informally known as griffenflies or (incorrectly) as giant dragonflies. The order was formerly named Protodonata, the "proto-Odonata", for their similar appearance and supposed relation to modern Odonata ( damselflies and dragonflies). They range in Palaeozoic (Late Carboniferous to Late Permian) times. Though most were only slightly larger than modern dragonflies, the order includes the largest known insect species, such as the late Carboniferous '' Meganeura monyi'' and the even larger early Permian '' Meganeuropsis permiana'', with wingspans of up to . The forewings and hindwings are similar in venation (a primitive feature) except for the larger anal (rearwards) area in the hindwing. The forewing is usually slenderer and slightly longer than the hindwing. Unlike the true dragonflies, the Odonata, they had no pterostigmata, and had a somewhat simpler pattern of veins in the wings. Most specimens are known f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligotypus
''Oligotypus'' is an extinct genus of griffinfly in the family Paralogidae. This genus is known from 4 species from the Carboniferous to Permian. Species Type species of the genus, ''Oligotypus tillyardi'' was described from lower Permian site in Kansas and Midco insect bed in Oklahoma. It was small griffinfly with wing length of as preserved. Second species, ''O. makowskii'' was described from middle Pennsylvanian Francis Creek Shale in Illinois. It had wing which is long as preserved and estimated to have complete length of . Third species, ''O. huangheensis'' was described from Pennsylvanian, Namurian stage, Yanghugou Formation (previously called as Tupo Formation) near the village of Xiaheyan in Ningxia Hui Autonomous Region, China. It was originally described under its own genus ''Sinomeganeura'', but it was synonymized to ''Oligotypus'' in 2013. The preserved segment is giving an estimated full length for the wing of approximately . Fourth species, ''O. tuscaloo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Insect Families
Prehistory, also called pre-literary history, is the period of human history between the first known use of stone tools by hominins 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 years ago. It took thousands of years for writing systems to be widely adopted, with writing having spread to almost all cultures by the 19th century. The end of prehistory therefore came at different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. It is based on an old conception of history that without written records there could be no history. The most common conception today is that history is based on evidence, however the concept of prehistory hasn't been completely discarded. In the early Bronze Age, Sumer in Mesopotamia, the Indus Valley Civili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
