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Titanoptera
Titanoptera is an extinct order of neopteran insects from late Carboniferous to Triassic periods. Titanopterans were very large in comparison with modern insects, some having wingspans of up to or even . Description Titanopterans are related to modern Orthoptera, grasshoppers, but were much larger, had proportionally weaker hindlegs that could not allow the animals to leap, and grasping forelegs and elongated mandible (arthropod), mandibles. Another distinctive feature was the presence of prominent fluted regions on the forewings, which may have been used in stridulation. The general shape and anatomy of the titanopterans suggests that they were predators. An examination of a fossil of the oldest titanopteran genus, ''Theiatitan'' compared to modern insects seems to indicate they did not utilize stridulation, but used flashes of light from wing displays and crepitation, moving its wings to produce sound. The authors argue that none of the stridulation, crepitation, castanet s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gigatitan Vulgaris Reconstruction
''Gigatitan'' is an extinct genus of titanopteran insect that lived in Kyrgyzstan during the Triassic period. The type species is ''G. vulgaris'', described by Aleksandr Grigorevich Sharov in 1968. Fossils of ''Gigatitan'' have been found in the Madygen Formation. It is the type (biology), type genus of the family Gigatitanidae, in which the closely related ''Nanotitan'' and ''Ootitan'' are also included. Description ''Gigatitan'' was a large insect, type species, ''G. vulgaris'' is estimated to have wingspan up to . Although it had large wings, which hindwing area is close to modern large Orthoptera, orthopteran Pseudophyllanax imperialis, ''Pseudophyllanax imperialis'', body volume is estimated to be around 150% heavier than that species, suggesting ''Gigatitan'' was not able to fly, but probably able to glide. In life, ''Gigatitan'' was a mantis-like predator, with forelegs that have similarly enlarged and bore spines for prey capture. It had dark, transverse stripes on its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gigatitan
''Gigatitan'' is an extinct genus of titanopteran insect that lived in Kyrgyzstan during the Triassic period. The type species is ''G. vulgaris'', described by Aleksandr Grigorevich Sharov in 1968. Fossils of ''Gigatitan'' have been found in the Madygen Formation. It is the type genus of the family Gigatitanidae, in which the closely related '' Nanotitan'' and '' Ootitan'' are also included. Description ''Gigatitan'' was a large insect, type species, ''G. vulgaris'' is estimated to have wingspan up to . Although it had large wings, which hindwing area is close to modern large orthopteran ''Pseudophyllanax imperialis'', body volume is estimated to be around 150% heavier than that species, suggesting ''Gigatitan'' was not able to fly, but probably able to glide. In life, ''Gigatitan'' was a mantis-like predator, with forelegs that have similarly enlarged and bore spines for prey capture. It had dark, transverse stripes on its wings, which is similar to modern diurnal mantis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clatrotitan
''Clatrotitan'' is an extinct genus of titanopteran insect, known from the Triassic The Triassic ( ) is a geologic period and system (stratigraphy), system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago (Year#Abbreviations yr and ya, Mya), to the beginning of the Jurassic Period 201.36 ... of Australia. It is originally described from a species, ''C. andersoni'', then later study considered that '' Mesotitan scullyi'' as species of ''Clatrotitan'' too. But another study synonymized ''Mesotitan'' and ''Clatrotitan''. A study in 2021 proposed to keep the two genera ''Clatrotitan'' and ''Mesotitan'' separated. ''C. andersoni'' had a large forewing, which was long. References {{Taxonbar, from=Q41152436 Extinct insects Orthopterida Insects of Australia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clatrotitan AMF36274
''Clatrotitan'' is an extinct genus of titanopteran insect, known from the Triassic The Triassic ( ) is a geologic period and system (stratigraphy), system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago (Year#Abbreviations yr and ya, Mya), to the beginning of the Jurassic Period 201.36 ... of Australia. It is originally described from a species, ''C. andersoni'', then later study considered that '' Mesotitan scullyi'' as species of ''Clatrotitan'' too. But another study synonymized ''Mesotitan'' and ''Clatrotitan''. A study in 2021 proposed to keep the two genera ''Clatrotitan'' and ''Mesotitan'' separated. ''C. andersoni'' had a large forewing, which was long. References {{Taxonbar, from=Q41152436 Extinct insects Orthopterida Insects of Australia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russia
Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eighth of Earth's inhabitable landmass. Russia extends across eleven time zones and shares land boundaries with fourteen countries, more than any other country but China. It is the world's ninth-most populous country and Europe's most populous country, with a population of 146 million people. The country's capital and largest city is Moscow, the largest city entirely within Europe. Saint Petersburg is Russia's cultural centre and second-largest city. Other major urban areas include Novosibirsk, Yekaterinburg, Nizhny Novgorod, and Kazan. The East Slavs emerged as a recognisable group in Europe between the 3rd and 8th centuries CE. Kievan Rus' arose as a state in the 9th century, and in 988, it adopted Orthodox Christianity from t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fern
A fern (Polypodiopsida or Polypodiophyta ) is a member of a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. The polypodiophytes include all living pteridophytes except the lycopods, and differ from mosses and other bryophytes by being vascular, i.e., having specialized tissues that conduct water and nutrients and in having life cycles in which the branched sporophyte is the dominant phase. Ferns have complex leaves called megaphylls, that are more complex than the microphylls of clubmosses. Most ferns are leptosporangiate ferns. They produce coiled fiddleheads that uncoil and expand into fronds. The group includes about 10,560 known extant species. Ferns are defined here in the broad sense, being all of the Polypodiopsida, comprising both the leptosporangiate ( Polypodiidae) and eusporangiate ferns, the latter group including horsetails, whisk ferns, marattioid ferns, and ophioglossoid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permian
The Permian ( ) is a geologic period and System (stratigraphy), stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleozoic Era; the following Triassic Period belongs to the Mesozoic Era. The concept of the Permian was introduced in 1841 by geologist Sir Roderick Murchison, who named it after the Perm Governorate, region of Perm in Russia. The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the Sauropsida, sauropsids (reptiles). The world at the time was dominated by the supercontinent Pangaea, which had formed due to the collision of Euramerica and Gondwana during the Carboniferous. Pangaea was surrounded by the superocean Panthalassa. The Carboniferous rainforest collapse left behind vast regions of desert within the continental interior. Amniotes, which could better cope with these drier conditi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
