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Paranaspides Williamsi
Anaspidesidae is a family (biology), family of freshwater crustacean that is endemic to Tasmania, Australia. The family contains 3 living genus, genera. This group of crustaceans are considered living fossils. They are commonly and collectively known as the Tasmanian anaspid crustaceans. This family is originally called as Anaspididae. However, genus name ''Anaspis'' was preoccupied by the insect genus, ''Anaspis'' Geoffroy, 1762, and therefore, in 2017, the family was renamed to Anaspidesidae by Shane T. Ahyong, Shane Ahyong and Miguel A. Alonso-Zarazaga. Anaspiesids have stalked eyes, long antennae and antennules, and a slender body with no carapace. The two species of ''Allanaspides'' and the single species of ''Paranaspides'' are all listed as vulnerable species, vulnerable on the IUCN Red List. Taxonomy After Höpel ''et al.'' (2023) *''Allanaspides'' Swain, Wilson, Hickman & Ong, 1970 **''Allanaspides hickmani'' Swain, Wilson & Ong, 1970 – commonly known as Hickman's pyg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anaspides Tasmaniae
''Anaspides tasmaniae'' is a species of fresh water crustacean of the family Anaspididae found in Tasmania. It is also known by the common names "mountain shrimp" or "chris' pseudo-mantis". It has been described as a "living fossil". ''A. tasmaniae'' lives in tarns A tarn (or corrie loch) is a mountain lake, pond or pool, formed in a cirque (or "corrie") excavated by a glacier. A moraine may form a natural dam below a tarn. Etymology The word is derived from the Old Norse word ''tjörn'' ("a small mou ... and creeks over 300 metres above sea level, and is found in Lake St Clair and Clarence Lagoon. References {{Taxonbar, from=Q23808750 Syncarida Crustaceans described in 1892 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anaspides Jarmani
''Anaspides jarmani'' is a species of freshwater crustacean in the family Anaspidesidae, and was first described in 2015 by Shane Ahyong This species is endemic to Tasmania Tasmania (; palawa kani: ''Lutruwita'') is an island States and territories of Australia, state of Australia. It is located to the south of the Mainland Australia, Australian mainland, and is separated from it by the Bass Strait. The sta ..., and known only from its type locality. References {{taxonbar, from=Q107100183 Crustaceans described in 2015 Taxa named by Shane T. Ahyong Syncarida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aptian
The Aptian is an age (geology), age in the geologic timescale or a stage (stratigraphy), stage in the stratigraphic column. It is a subdivision of the Early Cretaceous, Early or Lower Cretaceous epoch (geology), Epoch or series (stratigraphy), Series and encompasses the time from 121.4 ± 1.0 annum, 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 Europe, 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 annum, Ma and lasted approximately 1 to 1.3 million years, being marked by enhanced silicate weathering, as well as ocean acidification. The Aptian extinction was a minor extinction event hypothesized to have occurred around 116 to 117 Ma. Stratigraphic definitions The Aptian was named after the small city o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koonwarra, Victoria
Koonwarra is a town in the South Gippsland region of Victoria, Australia. At the , Koonwarra had a population of 404. The town straddles the South Gippsland Highway. Located around 128 km southeast of Melbourne, the town was served by rail from the 1890s until 1991 with the closing of the rail line to Barry Beach. Koonwarra fossil bed The Koonwarra fossil bed was found by accident in 1961 during roadworks to realign a segment of the South Gippsland Highway. Dating from the early Cretaceous 115 million years ago, it is composed of mudstone sediment thought to have been laid down in a freshwater (possibly cool-climate subalpine) lake. The site is an important element of Australia's fossil record, with plants, insects (including mayflies, dragonflies, cockroaches, beetles, fleas, flies and wasps), spiders, crustaceans and fish recovered. Among them is the unusual finding of a fossil horseshoe crab described as '' Victalimulus mcqueeni''. Small segments of a leafy twig have b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koonaspides
''Koonaspides'' is an extinct genus of fossil crustacean in the family Anaspidesidae, from Early Cretaceous (Aptian) Koonwarra Fossil Beds in eastern Victoria, Australia. The only known species within the genus is ''Koonaspides indistinctus''.P. A. Jell and P. M. Duncan. 1986. Invertebrates, mainly insects, from the freshwater, Lower Cretaceous, Koonwarra Fossil Bed (Korumburra Group), South Gippsland, Victoria. ''Memoirs of the Association of Australasian Palaeontologists'' 3:111-205 Along with the Triassic genus '' Anaspidites'', this is one of two known fossil members of this family. Discovery and etymology A single specimen of ''K. indistinctus'', NMV P102799 is known from the Koonwarra Fossil Beds. The genus name consists of Koon- from Koonwarra and -aspides from Greek ''aspis'', a shield. The species name ''indistinctus'' means obscure or dim. Description The only known specimen of ''K. indistinctus'' has a body length of , with indistinct antennae preserved as long ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triassic
The Triassic ( ; sometimes symbolized 🝈) is a geologic period and system which spans 50.5 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.4 Mya. The Triassic is the first and shortest period of the Mesozoic Era and the seventh period of the Phanerozoic Eon. Both the start and end of the period are marked by major extinction events. The Triassic Period is subdivided into three epochs: Early Triassic, Middle Triassic and Late Triassic. The Triassic began in the wake of the Permian–Triassic extinction event, which left the Earth's biosphere impoverished; it was well into the middle of the Triassic before life recovered its former diversity. Three categories of organisms can be distinguished in the Triassic record: survivors from the extinction event, new groups that flourished briefly, and other new groups that went on to dominate the Mesozoic Era. Reptiles, especially archosaurs, were the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawkesbury Sandstone
Sydney sandstone, also known as the Hawkesbury sandstone, yellowblock, and yellow gold, is a sedimentary rock named after Sydney, and the Hawkesbury River north of Sydney, where this sandstone is particularly common. It forms the bedrock for much of the region of Sydney, Australia. Well known for its durable quality, it is the reason many Indigenous Australians, Aboriginal rock carvings and drawings in the area still exist. As a highly favoured building material, especially preferred during the city's early years—from the late 1790s to the 1890s—its use, particularly in public buildings, gives the city its distinctive appearance. The sandstone is notable for its geological characteristics; its relationship to Sydney's vegetation and topography; the history of the quarries that worked it; and the quality of the buildings and sculptures constructed from it. This bedrock gives the city some of its "personality" by dint of its meteorological, horticultural, aesthetic and hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paranaspides Williamsi
Anaspidesidae is a family (biology), family of freshwater crustacean that is endemic to Tasmania, Australia. The family contains 3 living genus, genera. This group of crustaceans are considered living fossils. They are commonly and collectively known as the Tasmanian anaspid crustaceans. This family is originally called as Anaspididae. However, genus name ''Anaspis'' was preoccupied by the insect genus, ''Anaspis'' Geoffroy, 1762, and therefore, in 2017, the family was renamed to Anaspidesidae by Shane T. Ahyong, Shane Ahyong and Miguel A. Alonso-Zarazaga. Anaspiesids have stalked eyes, long antennae and antennules, and a slender body with no carapace. The two species of ''Allanaspides'' and the single species of ''Paranaspides'' are all listed as vulnerable species, vulnerable on the IUCN Red List. Taxonomy After Höpel ''et al.'' (2023) *''Allanaspides'' Swain, Wilson, Hickman & Ong, 1970 **''Allanaspides hickmani'' Swain, Wilson & Ong, 1970 – commonly known as Hickman's pyg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paranaspides Lacustris
Anaspidesidae is a family of freshwater crustacean that is endemic to Tasmania, Australia. The family contains 3 living genera. This group of crustaceans are considered living fossils. They are commonly and collectively known as the Tasmanian anaspid crustaceans. This family is originally called as Anaspididae. However, genus name ''Anaspis'' was preoccupied by the insect genus, ''Anaspis'' Geoffroy, 1762, and therefore, in 2017, the family was renamed to Anaspidesidae by Shane Ahyong and Miguel A. Alonso-Zarazaga. Anaspiesids have stalked eyes, long antennae and antennules, and a slender body with no carapace. The two species of ''Allanaspides'' and the single species of ''Paranaspides'' are all listed as vulnerable on the IUCN Red List. Taxonomy After Höpel ''et al.'' (2023) *''Allanaspides'' Swain, Wilson, Hickman & Ong, 1970 **'' Allanaspides hickmani'' Swain, Wilson & Ong, 1970 – commonly known as Hickman's pygmy mountain shrimp **'' Allanaspides helonomus'' Swain, W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anaspides Eberhardi
''Anaspides'' is a genus of freshwater crustaceans in the family Anaspidesidae. The genus was first described in 1894 by George Malcolm Thomson. The genus was originally placed in the family, Anaspididae by Thomson, but this genus name was preoccupied by the insect genus, ''Anaspis'' Geoffroy, 1762, and therefore, in 2017, the family was renamed Anaspidesidae by Shane Ahyong and Miguel A. Alonso-Zarazaga. The genus is endemic to Tasmania. Species After Höpel ''et al.'' (2023) *'' Anaspides clarkei'' *'' Anaspides driesseni'' *''Anaspides jarmani'' *'' Anaspides spinulae'' *''Anaspides swaini'' *''Anaspides tasmaniae ''Anaspides tasmaniae'' is a species of fresh water crustacean of the family Anaspididae found in Tasmania. It is also known by the common names "mountain shrimp" or "chris' pseudo-mantis". It has been described as a "living fossil". ''A. tasmani ...'' *'' Anaspides richardsoni'' Ahyong, 2016 *'' Anaspides eberhardi'' Ahyong, 2016 References Furthe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anaspides Richardsoni
''Anaspides richardsoni'' is a species of arthropod native to Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl .... References Syncarida Crustaceans described in 2016 {{Malacostraca-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
