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Archisargidae
Archisargidae is an extinct family of brachyceran flies known from the Jurassic and Cretaceous periods. It is part of the extinct superfamily Archisargoidea. Most members of the family are known from the Callovian-Oxfordian Daohugou biota of Inner Mongolia, China, and the equivalently aged Karabastau Formation of Kazakhstan. The family has been found to be paraphyletic with respect to Eremochaetidae in a cladistic analysis. Taxonomy *†subfamily Archisarginae Rohdendorf 1962 ** †'' Archirhagio'' Rohdendorf 1938 *** †''Archirhagio gracilentus'' Wang et al. 2017 Daohugou, China, Callovian *** †''Archirhagio obscurus'' Rohdendorf 1938 Karabastau Formation, Kazakhstan, Oxfordian *** †''Archirhagio striatus'' Zhang and Zhang 2003J. Zhang and H. Zhang. 2003. Two new species of archisargids (Insecta: Diptera: Archisargidae) from the Upper Jurassic Daohugou Formation (Inner Mongolia, northeastern China). ''Paleontological Journal'' 37:409-412 Daohugou, China, Callovian *** � ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tiaojishan Formation
The Tiaojishan Formation is a geological formation in Hebei and Liaoning, People's Republic of China, dating to the middle-late Jurassic period (Bathonian- Oxfordian stages). It is known for its exceptionally preserved fossils, including those of plants, insects and vertebrates. It is made up mainly of pyroclastic rock interspersed with basic volcanic and sedimentary rocks. Previously, the Tiaojishan Formation was grouped together with the underlying Haifanggou Formation (also known as the Jiulongshan Formation) as a single "Lanqi Formation." The Tiaojishan Formation forms a key part of the Yanliao Biota assemblage, alongside the Haifanggou Formation. Age Using Argon–argon dating, Wang and colleagues in 2005 dated part of the Tiaojishan Formation to about 160 million years ago, the beginning of the Oxfordian stage, the first stage of the Upper Jurassic epoch. In 2006, a study by Liu and colleagues used U-Pb zircon dating to conclude that the Tiaojishan Formation correlates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eremochaetidae
Eremochaetidae is an extinct family of brachyceran flies known from the Jurassic and Cretaceous periods of Asia. It is part of the extinct superfamily Archisargoidea. The morphology of the ovipositor of the only 3 dimensionally preserved genus '' Zhenia'' was initially interpreted as evidence of being an endoparasitoid of arthropods, however a subsequent study suggested that the ovipositor was used to deposit its eggs in plant material, similar to members of Tephritoidea. In a phylogenetic analysis, Ermochaetidae was found to be monophyletic, surrounded by a paraphyletic Archisargidae. Taxonomy * †'' Alleremonomus'' Ren and Guo 1995 ** †''Alleremonomus xingi'' Ren and Guo 1995 Laiyang Formation, Yixian Formation, China, Aptian * †'' Dissup'' Evenhuis 1994 ** †''Dissup clausus'' Zhang et al. 2014 Yixian Formation, China, Aptian ** †''Dissup irae'' Kovalev 1989 Turga Formation, Russia, Aptian * †'' Eremochaetomima'' Mostovski 1996M. B. Mostovski. 1996. To the kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archisargoidea
} Archisargoidea is an extinct superfamily of brachyceran flies known from the late Middle Jurassic (Callovian) to early Late Cretaceous (Turonian). Most flies in the superfamily have large eyes and an elongated abdomen, preserved females have a sharp, piercing oviscapt used for injecting eggs into host matter. Their relationships with other members of Brachycera is controversial, they are usually considered close relatives of either Stratiomyomorpha or Muscomorpha. Internal relationships between the families are uncertain and the topology of the only cladistic analysis of the family was weakly supported, finding that Archisargidae was paraphyletic with respect to Eremochaetidae and miniaturized Tethepomyiidae. The sharp piercing oviscaps possessed by the group had alternatively been suggested to represent evidence of being parasitoids, injecting their eggs into hosts similar to parasitic wasps, or to inject eggs into plant material like rotting wood or fruit, similar to members ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Talbragar Fossil Site
The Talbragar fossil site is a paleontological site of Late Jurassic (Tithonian) age in the central west of New South Wales, Australia. It lies about north-east of the town of Gulgong, and north-west of Sydney. The site has been known for over a century during which it has been extensively excavated to the point of near exhaustion. It is now registered as a Crown Land Reserve for the preservation of fossils; access is by permit, and the collection of rocks and fossil specimens is prohibited. The reserve is listed on the (now defunct) Register of the National Estate. Fossils The fossil-bearing rocks are fine-grained siltstones and mudstones that are part of the Purlawaugh Formation. They occur mainly as loose blocks and weathered shales over an area of about , with a thickness of no more than . They are thought to be the remnants of sediments from a small freshwater lake, surrounded by forest, which existed about 175 million years ago when Australia was part of Gondwan ... [...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 no ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulan Malgait Formation
The Ulan Malgait Formation is a Late Jurassic geologic formation in Mongolia. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.Weishampel et al., 2004, pp.517-607 It is best known for the Shar Teeg locality which has lent its name to Shartegosuchidae, a family of mesoeucrocodylians (relatives of crocodilians), many of which have been found there; '' Shartegosuchus'' (the family's type genus) means "Shar Teeg crocodile".Dollman et al., 2018 It is divided up into 2 subunits, the lower Shar Teg Beds and the upper Ulan Malgait Beds.Watabe, 2010 The tritylodontids ''Shartegodon, Nuurtherium'' and '' Bienotheroides'' are known from the formation.,Velazco et al., 2017 As is docodontan ''Tegotherium''. The turtles '' Annemys levensis'' and '' Annemys latiens'' and crocodylians '' Sunosuchus shartegensis'' and '' Adzhosuchus fuscus'' were also recovered from the formation.Efimov et al., 2000 Num ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
