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Eomeropidae
Eomeropidae is a family (biology), family of aberrant, flattened scorpionflies represented today by only a single living species, ''Notiothauma reedi'', known from the ''Nothofagus'' forests in southern Chile, while all other recognized genera in the family are known only as fossils, with the earliest definitive fossil known from Early Jurassic, Liassic-aged strata, and the youngest from Paleogene-aged strata.Archibald, S. Bruce, Alexandr P. Rasnitsyn, and Mikhail A. Akhmetiev. "Ecology and distribution of Cenozoic Eomeropidae (Mecoptera), and a new species of ''Eomerope'' Cockerell from the Early Eocene McAbee locality, British Columbia, Canada." Annals of the Entomological Society of America 98.4 (2005): 503-514. Ecology ''Notiothauma'' adults are thought to be Saprotrophic nutrition, saprophagous with a preference for carrion, having been observed feeding on dead chickens and rabbits, though in one experimental study they were also observed feeding on plant material. Genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notiothauma Reedi
''Notiothauma'' is the sole living genus in the scorpionfly family Eomeropidae. The genus is monotypic with a lone species ''Notiothauma reedi'' which is native to the Valdivian temperate rain forests of central Chile, especially the forests with ''Nothofagus'' stands. ''N. reedi'' is flattened with a notedly cockroach-like appearance. They are nocturnal and inhabit the forest floor where the adults feed on plants and decaying animals. The larvae are still unknown. Because this is the last extant species of Eomeropidae, ''N. reedi'' can be characterized as a living fossil taxon. Phylogeny The proposed phylogenetic relationships of ''N. reedi'' based on Soszyńska-Maj ''et al'' 2016. References Mecoptera Monotypic insect genera Endemic fauna of Chile {{Mecoptera-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notiothauma
''Notiothauma'' is the sole living genus in the scorpionfly family Eomeropidae. The genus is monotypic with a lone species ''Notiothauma reedi'' which is native to the Valdivian temperate rain forests of central Chile, especially the forests with ''Nothofagus'' stands. ''N. reedi'' is flattened with a notedly cockroach-like appearance. They are nocturnal and inhabit the forest floor where the adults feed on plants and decaying animals. The larvae are still unknown. Because this is the last extant species of Eomeropidae, ''N. reedi'' can be characterized as a living fossil A living fossil is a Deprecation, deprecated term for an extant taxon that phenotypically resembles related species known only from the fossil record. To be considered a living fossil, the fossil species must be old relative to the time of or ... taxon. Phylogeny The proposed phylogenetic relationships of ''N. reedi'' based on Soszyńska-Maj ''et al'' 2016. References Mecoptera Monotypic i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allenby Formation
The Allenby formation is a sedimentary rock formation in British Columbia which was deposited during the Ypresian stage of the Early Eocene. It consists of conglomerates, sandstones with interbedded shales and coal. The shales contain an abundance of insect, fish and plant fossils known from 1877 and onward, while the Princeton Chert was first indented in the 1950s and is known from anatomically preserved plants. There are several notable fossil producing localities in the Princeton & Tulameen basins. Historical collection sites included Nine Mile Creek, Vermilian Bluffs, and Whipsaw Creek, while modern sites include One Mile Creek, Pleasant Valley, Thomas Ranch, and the Princeton Chert. Extent and correlation The Allenby is estimated to have an overall extent of approximately , though actual outcroppings of the formation make up less than 1% of the formation, while other exploratory contact is via boreholes and mines. The half-graben which contains the formation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scorpionflies
Mecoptera (from the Greek language, Greek: ''mecos'' = "long", ''ptera'' = "wings") is an Order (biology), order of insects in the superorder Holometabola 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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charmouth Mudstone Formation
The Charmouth Mudstone Formation is a Formation (geology), geological formation in England, dating to the Early Jurassic (Sinemurian–Pliensbachian). It forms part of the lower Lias Group. It is most prominently exposed at its type locality in cliff section between Lyme Regis and Charmouth (alongside the underlying Blue Lias) but onshore it extends northwards to Market Weighton, Yorkshire, and in the Bedrock, subsurface of the East Midlands Shelf and Wessex Basin. The formation is notable for its fossils, including those of ammonites and marine reptiles and rare dinosaur remains. The formation played a prominent role in the history of early paleontology, with its Lyme Regis-Charmouth exposure being frequented by fossil collectors including Mary Anning. Stratigraphy Shales With Beef Member The Shales With Beef Member is around 28–30 metres thick in the Lyme Regis-Charmouth region and predominantly consists of thinly bedded medium to dark grey mudstone, blocky calcareous pale ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living Fossil
A living fossil is a Deprecation, deprecated term for an extant taxon that phenotypically resembles related species known only from the fossil record. To be considered a living fossil, the fossil species must be old relative to the time of origin of the extant clade. Living fossils commonly are of species-poor lineages, but they need not be. While the body plan of a living fossil remains superficially similar, it is never the same species as the remote relatives it resembles, because genetic drift would inevitably change its chromosomal structure. Living fossils exhibit punctuated equilibrium, stasis (also called "bradytely") over geologically long time scales. Popular literature may wrongly claim that a "living fossil" has undergone no significant evolution since fossil times, with practically no molecular evolution or Morphology (biology), morphological changes. Scientific investigations have repeatedly discredited such claims. The minimal superficial changes to living foss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yixian Formation
The Yixian Formation (; formerly Romanization of Chinese, transcribed as Yihsien Formation or Yixiang Formation) is a geological formation in Jinzhou, Liaoning, People's Republic of China, that spans the Barremian stage of the Early Cretaceous. It is known for its exquisitely preserved fossils, and is mainly composed of basalts interspersed with siliciclastic sediments. Research history The potential importance of the Yixian Formation was initially recognized during the time the Empire of Japan occupied China's Rehe Province, Rehe ("Jehol") Province after the Defense of the Great Wall in 1933. Many Japanese scientists had noticed fossil remains of extinct fish and reptiles, possibly the champsosaurs. These initial fossil discoveries made by Japanese scientists vanished once World War II ended in 1945. By 1949, when administration of the area passed to the Chinese Communist Party and its leader Mao Zedong, the fossils of Yixian were studied only by Chinese scientists. It was not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dabeigou Formation
The Dabeigou Formation () is a palaeontological formation located in Hebei, China.Dabeigou Formation at .org It dates from the mid to of the |
Cockroach
Cockroaches (or roaches) are insects belonging to the Order (biology), order Blattodea (Blattaria). About 30 cockroach species out of 4,600 are associated with human habitats. Some species are well-known Pest (organism), pests. Modern cockroaches are an ancient group that first appeared during the Late Jurassic, with their ancestors, known as "Roachoid, roachoids", likely originating during the Carboniferous period around 320 million years ago. Those early ancestors, however, lacked the internal ovipositors of modern roaches. Cockroaches are somewhat generalized insects lacking special adaptations (such as the sucking Insect mouthparts, mouthparts of aphids and other Hemiptera, true bugs); they have chewing mouthparts and are probably among the most primitive of living Neopteran insects. They are common and hardy insects capable of tolerating a wide range of Köppen climate classification, climates, from Arctic cold to Tropics, tropical heat. Tropical cockroaches are often muc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daohugou Beds
The Haifanggou Formation (), also known as the Jiulongshan Formation (), is a fossil-bearing rock deposit located near Daohugou () village of Ningcheng County, in Inner Mongolia, northeastern China. The formation consists of coarse Conglomerate (geology), conglomerates, sandstone, mudstone, and thin coal layers deposited in river delta, deltaic and lacustrine depositional environment, environments. The formation dates to the Callovian of the Middle Jurassic to the Oxfordian (stage), Oxfordian of the Late Jurassic. The most prominent locality of the Haifanggou Formation are the Daohugou Beds, located near the village of Daohugou in southeastern Inner Mongolia. Other localities include Wuhuaxigou, Chentaizi, Jiangzhangzi, Wubaiding, Guancaishan, Haifenggou, Fanzhangzi, and Zhuanshanzi. Dating Daohugou bed The age of the Daohugou bed has been debated, and a number of studies, using different methodologies, have reached conflicting conclusions. Various papers have placed the fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinemurian
In the geologic timescale, the Sinemurian is an age (geology), age and stage (stratigraphy), stage in the Early Jurassic, Early or Lower Jurassic epoch (geology), Epoch or series (stratigraphy), Series. It spans the time between 199.5 ±0.3 annum, Ma and 192.9 ±0.3 Ma (million years ago). The Sinemurian is preceded by the Hettangian and is followed by the Pliensbachian. In Europe the Sinemurian age, together with the Hettangian age, saw the deposition of the lower Lias Group, Lias, in Great Britain known as the Blue Lias. Stratigraphic definitions The Sinemurian Stage was defined and introduced into scientific literature by French palaeontologist Alcide d'Orbigny in 1842. It takes its name from the French town of Semur-en-Auxois, near Dijon. The calcareous soil formed from the Jurassic limestone of the region is in part responsible for the character of the classic Sancerre (wine), Sancerre wines. The base of the Sinemurian Stage is at the first appearance of the ammonite genu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
