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Burrowing Bug
Cydnidae are a family of pentatomoid bugs, known by common names including burrowing bugs or burrower bugs. As the common name would suggest, many members of the group live a subterranean lifestyle, burrowing into soil using their head and forelegs, only emerging to mate and then laying their eggs in soil. Other members of the group are not burrowers, and live above the soil layer, often in close association with plants. Several species are known as agricultural pests. Description Burrowing bugs range from 2 to 20 mm in length. They are dark, ovoid in shape and highly sclerotised. The head is generally subquadrate to semicircular in shape, and has a pair of 5-segmented antennae. The coxae of the legs have setal combs, while the apices of the mid and hind coxae are fringed with rigid setae. The tibiae of the legs (also often the head and pronotum) have spines. The tarsi of the legs are 3-segmented and often reduced. Similar to other pentatomoids, Cydnidae have glands in the t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustaf Johan Billberg
Gustaf Johan Billberg (14 June 1772, Karlskrona – 26 November 1844, Stockholm) was a Swedish botanist, zoologist and anatomist, although professionally and by training he was a lawyer and used science and biology as an avocation. The plant genus ''Billbergia'' was named for him by Carl Peter Thunberg. Biography In 1790 he earned his legal degree at the University of Lund, later working as an auditor at the audit chamber in Stockholm from 1793. In 1798 he became a member of the county administrative board (''landskamrerare'') in Visby. In 1808 he returned to Stockholm, where from 1812 to 1837, he served as a member of the administrative court (''kammarrättsråd''). He was promoted in 1824 to head the ministry of the Board of Customs (''generaltullstyrelsen''). In 1812, he purchased the right of publishing to the precious work of ''Svensk Botanik'' from the estate of Johan Wilhelm Palmstruch. He subsequently prepared two parts for publication during 1812–1819. He was elected m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Codo Formation
Codo may refer to: *Codo, Aragon, a municipality in the province of Zaragoza, Aragon, Spain *Codó Codó is a city in the Maranhão, Brazil. It has an estimated population of 123,116 (2020) and an area of 4,361.344 km2. Therefore, the sixth most populous municipality in the state. It has the largest concentration of religious centers of A ..., a city in Maranhão, Brazil *"Codo", a 1983 single by the Austrian group DÖF {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crato Formation
The Crato Formation is a geologic formation of Early Cretaceous ( Aptian) age in northeastern Brazil's Araripe Basin. It is an important Lagerstätte (undisturbed fossil accumulation) for palaeontologists. The strata were laid down mostly during the Aptian age, about 113 million years ago. It thought to have been deposited in a semi-arid lacustrine wetland environment.Ribeiro et al., 2021 The Crato Formation earns the designation of Lagerstätte due to an exceedingly well preserved and diverse fossil faunal assemblage. Some 25 species of fossil fishes are often found with stomach contents preserved, enabling paleontologists to study predator-prey relationships in this ecosystem. There are also fine examples of pterosaurs, reptiles and amphibians, invertebrates (particularly insects), and plants. Even dinosaurs are represented: a new maniraptor was described in 1996. The unusual taphonomy of the site resulted in limestone accretions that formed nodules around dead organisms, pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aptian
The Aptian is an age in the geologic timescale or a stage in the stratigraphic column. It is a subdivision of the Early or Lower Cretaceous Epoch or Series and encompasses the time from 121.4 ± 1.0 Ma to 113.0 ± 1.0 Ma (million years ago), approximately. The Aptian succeeds the Barremian and precedes the Albian, all part of the Lower/Early Cretaceous. The Aptian partly overlaps the upper part of the Western European Urgonian Stage. The Selli Event, also known as OAE1a, was one of two oceanic anoxic events in the Cretaceous Period, which occurred around 120 Ma and lasted approximately 1 to 1.3 million years. The Aptian extinction was a minor extinction event hypothesized to have occurred around 116 to 117 Ma.Archangelsky, Sergio.The Ticó Flora (Patagonia) and the Aptian Extinction Event" ''Acta Paleobotanica'' 41(2), 2001, pp. 115-22. Stratigraphic definitions The Aptian was named after the small city of Apt in the Provence region of France, which is also known for its cry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yixian Formation
The Yixian Formation (; formerly transcribed as Yihsien Formation) is a geological formation in Jinzhou, Liaoning, People's Republic of China, that spans the late Barremian and early Aptian stages of the Early Cretaceous. It is known for its exquisitely preserved fossils, and is mainly composed of basalts interspersed with siliciclastic sediments. History Japanese occupation The potential importance of the Yixian Formation was initially recognized during the time the Empire of Japan occupied China's Rehe ("Jehol") Province after the First battle of Hopei 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. Chinese rediscovery 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 unt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amnestus
''Amnestus'' is a genus of burrowing bugs in the family Cydnidae Cydnidae are a family of pentatomoid bugs, known by common names including burrowing bugs or burrower bugs. As the common name would suggest, many members of the group live a subterranean lifestyle, burrowing into soil using their head and forel .... There are more than 40 described species in ''Amnestus''. Species These 48 species belong to the genus ''Amnestus'': * '' Amnestus andersoni'' Mayorga & Mayorga, 2017 * '' Amnestus basidentatus'' Froeschner, 1960 * '' Amnestus bergrothi'' Distant * '' Amnestus brailovskyanus'' Mayorga & Mayorga, 2017 * '' Amnestus brailovskyi'' Mayorga & Cervantes * '' Amnestus brunneus'' Signoret * '' Amnestus calakmulensis'' Mayorga & Cervantes * '' Amnestus carinatus'' Mayorga & Cervantes * '' Amnestus carinopilosus'' Mayorga & Cervantes * '' Amnestus championi'' Distant * '' Amnestus chiapensis'' Mayorga & Cervantes * '' Amnestus cristobalensis'' Mayorga & Cervantes * '' Amnest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cenomanian
The Cenomanian is, in the ICS' geological timescale, the oldest or earliest age of the Late Cretaceous Epoch or the lowest stage of the Upper Cretaceous Series. An age is a unit of geochronology; it is a unit of time; the stage is a unit in the stratigraphic column deposited during the corresponding age. Both age and stage bear the same name. As a unit of geologic time measure, the Cenomanian Age spans the time between 100.5 and 93.9 million years ago (Mya). In the geologic timescale, it is preceded by the Albian and is followed by the Turonian. The Upper Cenomanian starts around at 95 Mya. The Cenomanian is coeval with the Woodbinian of the regional timescale of the Gulf of Mexico and the early part of the Eaglefordian of the regional timescale of the East Coast of the United States. At the end of the Cenomanian, an anoxic event took place, called the Cenomanian-Turonian boundary event or the "Bonarelli event", that is associated with a minor extinction event for marine spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
