Platycrossos

	Platycrossos ''Platycrossos'' is a genus of Protocoleopteran beetle in the family Permosynidae Permosynidae is a family of Protocoleopteran beetle in the superfamily Permosynoidea. The family lived between the Late Permian and Late Jurassic and lived in Russia and Mongolia.A. G. Ponomarenko, D. S. Aristov, A. S. Bashkuev, Yu. M. Gubin, A .... Fossils of this genus have been recovered from Late Jurassic sediments in Mongolia. It contains the following species:A. G. Ponomarenko, D. S. Aristov, A. S. Bashkuev, Yu. M. Gubin, A. V. Khramov, E. D. Lukashevich, Yu. A. Popov, L. N. Pritykina, S. M. Sinitsa, N. D. Sinitshenkova, I. D. Sukatsheva, D. V. Vassilenko, E. V. Yan (2014). "Upper Jurassic Lagerstätte Shar Teg, southwestern Mongolia". Paleontological Journal 48 (14): 1573–1682. doi:10.1134/S0031030114140160. ''Platycrossos latus'' ''Platycrossos longus'' ''Platycrossos loxonicus'' ''Platycrossos mongolicus'' ''Platycrossos ovum'' References P Fossil taxa described in 1923 [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Permosynidae Permosynidae is a family of Protocoleopteran beetle in the superfamily Permosynoidea. The family lived between the Late Permian and Late Jurassic and lived in Russia and Mongolia.A. G. Ponomarenko, D. S. Aristov, A. S. Bashkuev, Yu. M. Gubin, A. V. Khramov, E. D. Lukashevich, Yu. A. Popov, L. N. Pritykina, S. M. Sinitsa, N. D. Sinitshenkova, I. D. Sukatsheva, D. V. Vassilenko, E. V. Yan (2014). "Upper Jurassic Lagerstätte Shar Teg, southwestern Mongolia". Paleontological Journal 48 (14): 1573–1682. doi:10.1134/S0031030114140160.A. G. Ponomarenko (2015). "New beetles (Insecta, Coleoptera) from the Nedubrovo locality, terminal Permian or basal Triassic of European Russia". Paleontological Journal 49 (1): 39–50. doi:10.1134/S0031030115010098. Species that were discovered in 2014 include '' Artematopodites latissimus'', '' Platycrossos latus'', '' Platycrossos longus'', '' Platycrossos loxonicus'', '' Platycrossos mongolicus'', '' Platycrossos ovum'' and '' Dzeregia platis''. Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Late Jurassic The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 163.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.Owen 1987. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. In the past, ''Malm'' was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units. Subdivisions The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock: Paleogeography During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the spawning of the Atlantic Ocean. However, at this time, the Atlantic Ocean was relatively narrow. Life forms of the epoch This epoch is well known for many famous types of dinosau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Protocoleoptera The Protocoleoptera are a paraphyletic group of extinct beetles, containing the earliest and most primitive lineages of beetles. They represented the dominant group of beetles during the Permian, but were largely replaced by modern beetle groups during the following Triassic. Protocoleopterans typically possess prognathous (horizontal) heads, distinctive elytra with regular window punctures, culticles with tubercles or scales, as well as a primitive pattern of ventral sclerites, similar to the modern archostematan families Ommatidae and Cupedidae. They are thought to have been xylophagous and wood boring. Kirejtshuk ''et al.'' (2014) argue that the name "Protocoleoptera" should not be used for the group, as Protocoleoptera was originally proposed for the family Protocoleidae , now considered a member of the extinct order Protelytroptera (a stem-group of the modern Dermaptera Earwigs make up the insect order Dermaptera. With about 2,000 species in 12 families, they are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]