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Skinnera
''Skinnera'' is an Ediacaran-aged fossil found in Australia. It was discovered by A.L. Halliday and M.M. Bruer near Mount Skinner in the locality of Anmatjere, in the Northern Territory of Australia some time before 1969. Mary Wade of the University of Adelaide originally formally described ''Skinnera'' as a medusa. Description ''Skinnera'' is a small, disk-shaped fossil preserved as a composite mould. Specimens range in diameter from most are about across. They are slightly domed and all approximately tall. The fossils have three-fold symmetry and are characterized by three large, pouch-shaped depressions in the center which are speculated to be the stomach. These central depressions are connected to an outer rim of approximately 15 smaller pouch-shaped depressions along the perimeter of the disk by canals, Diversity There is only one known species, ''S. brooksi.'' Discovery A.L. Halliday, geologist, and M.M. Bruer, field assistant, were on a geological expedition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trilobozoa
''Trilobozoa'' (meaning "three-lobed animals") is a phylum of extinct mobile animals that were originally classified into the Cnidaria. The basic body plan of ''Trilobozoa'' is often a tri-radial or radial sphere-shaped form with lobes radiating from its centre. Fossils of trilobozoans are restricted to marine strata of the Late Ediacaran period. History and interpretations Originally, both Fedonkin and Runnegar presumed that there were 2-3 families within the Trilobozoa, those families being Albumaresidae Fedonkin, 1985 and Tribrachididae Runnegar, 1992. Although, affinities with the Conulariida were made because of the conulariids possessing similar three-fold symmetry. Mikhail Fedonkin later classified the Trilobozoa as a class of the Phylum Coelenterata. Most of the members of what is now the modern day classification for Trilobozoa were thought to have originally been free swimming Jellyfish. Tribrachidium was once interpreted as a Edrioasteroid Echinoderm, although wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hallidaya
The Ediacaran fossil ''Hallidaya'', a close relative of '' Skinnera'' lived in Belomorian (559-550 Ma) of the Late Ediacaran period prior to the Cambrian explosion and thrived in the marine strata on the ocean floor of what is now considered Australia. These fossils were disk-shaped organisms that were slightly dome shaped with tri-radial symmetry. These Ediacaran organisms thrived by living in low-energy inner shelf, in the wave- and current-agitated shoreface, and in the high-energy distributary systems. Description The ''Hallidaya'' is a species of ''Skinnera'' which has the shape of small circular-shaped fossils preserved as a mold. They are soft-bodied creatures approximately in diameter with an average of with a height of shaped like a dome. They have three central depressions that are connected to smaller pouch-shaped depressions around the perimeter of the disk by canals. The center depressions are speculated to be their stomach. Environmental conditions During th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Skinner, Northern Territory
__NOTOC__ Anmatjere is a locality in the Northern Territory of Australia located about south of the territory capital of Darwin. History The locality was named after the former Anmatjere Community Government Council, whose seat was located in the town of Ti-Tree. Its boundaries and name were gazetted on 4 April 2007. Governance and demographics Anmatjere is located within the federal division of Lingiari, the territory electoral division of Stuart and the local government areas of the Barkly Shire and the Central Desert Region. The 2016 Australian census reports that Anmatjere had 477 people living within its boundaries, of whom 47.3% were male, 52.7% were female and 87.9% identified as Aboriginal and/or Torres Strait Islander people. Sites and attractions The following sites located within Anmatjere are listed on the Northern Territory Heritage Register: * Aileron Homestead No. 1 * Alcoota Fossil Beds *Anna's Reservoir Conservation Reserve * Old Mount Riddock Homestead ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anmatjere, Northern Territory
__NOTOC__ Anmatjere is a locality in the Northern Territory of Australia located about south of the territory capital of Darwin. History The locality was named after the former Anmatjere Community Government Council, whose seat was located in the town of Ti-Tree. Its boundaries and name were gazetted on 4 April 2007. Governance and demographics Anmatjere is located within the federal division of Lingiari, the territory electoral division of Stuart and the local government areas of the Barkly Shire and the Central Desert Region. The 2016 Australian census reports that Anmatjere had 477 people living within its boundaries, of whom 47.3% were male, 52.7% were female and 87.9% identified as Aboriginal and/or Torres Strait Islander people. Sites and attractions The following sites located within Anmatjere are listed on the Northern Territory Heritage Register: * Aileron Homestead No. 1 * Alcoota Fossil Beds *Anna's Reservoir Conservation Reserve * Old Mount Riddock Homestea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Ediacaran Genera ...
This is a list of all described Ediacaran genera, including the Ediacaran biota. It contains 227 genera. References {{reflist, 30em * Ediacaran The Ediacaran Period ( ) is a geological period that spans 96 million years from the end of the Cryogenian Period 635 million years ago (Mya), to the beginning of the Cambrian Period 538.8 Mya. It marks the end of the Proterozoic Eon, and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ediacaran
The Ediacaran Period ( ) is a geological period that spans 96 million years from the end of the Cryogenian Period 635 million years ago (Mya), to the beginning of the Cambrian Period 538.8 Mya. It marks the end of the Proterozoic Eon, and the beginning of the Phanerozoic Eon. It is named after the Ediacara Hills of South Australia. The Ediacaran Period's status as an official geological period was ratified in 2004 by the International Union of Geological Sciences (IUGS), making it the first new geological period declared in 120 years. Although the period takes its name from the Ediacara Hills where geologist Reg Sprigg first discovered fossils of the eponymous Ediacaran biota in 1946, the type section is located in the bed of the Enorama Creek within Brachina Gorge in the Flinders Ranges of South Australia, at . The Ediacaran marks the first appearance of widespread multicellular fauna following the end of Snowball Earth glaciation events, the so-called Ediacaran biota, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Territory Of Australia
The Northern Territory (commonly abbreviated as NT; formally the Northern Territory of Australia) is an Australian territory in the central and central northern regions of Australia. The Northern Territory shares its borders with Western Australia to the west ( 129th meridian east), South Australia to the south ( 26th parallel south), and Queensland to the east ( 138th meridian east). To the north, the territory looks out to the Timor Sea, the Arafura Sea and the Gulf of Carpentaria, including Western New Guinea and other islands of the Indonesian archipelago. The NT covers , making it the third-largest Australian federal division, and the 11th-largest country subdivision in the world. It is sparsely populated, with a population of only 249,000 – fewer than half as many people as in Tasmania. The largest population center is the capital city of Darwin. The archaeological history of the Northern Territory may have begun more than 60,000 years ago when humans first settled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Adelaide
The University of Adelaide (informally Adelaide University) is a public research university located in Adelaide, South Australia. Established in 1874, it is the third-oldest university in Australia. The university's main campus is located on North Terrace in the Adelaide city centre, adjacent to the Art Gallery of South Australia, the South Australian Museum, and the State Library of South Australia. The university has four campuses, three in South Australia: North Terrace campus in the city, Roseworthy campus at Roseworthy and Waite campus at Urrbrae, and one in Melbourne, Victoria. The university also operates out of other areas such as Thebarton, the National Wine Centre in the Adelaide Park Lands, and in Singapore through the Ngee Ann-Adelaide Education Centre. The University of Adelaide is composed of three faculties, with each containing constituent schools. These include the Faculty of Sciences, Engineering and Technology (SET), the Faculty of Health and Medical S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeontology (journal)
''Palaeontology'' is one of the two scientific journals of the Palaeontological Association (the other being '' Papers in Palaeontology''). It was established in 1957 and is published on behalf of the Association by Wiley-Blackwell. The editor-in-chief is Barry Lomax (University of Nottingham). ''Palaeontology'' publishes articles on a range of palaeontological topics, including taphonomy, functional morphology, systematics, palaeo-environmental reconstruction and biostratigraphy. According to the ''Journal Citation Reports'', the journal has a 2017 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... of 3.730, ranking it 1st out of 55 journals in the category "Paleontology". References External links * Paleontology journals Publications established in 1957 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tribrachidium
''Tribrachidium heraldicum'' is a tri-radially symmetric fossil animal that lived in the late Ediacaran (Vendian) seas. In life, it was hemispherical in form. ''T. heraldicum'' is the best known member of the extinct group Trilobozoa. Etymology The generic name ''Tribrachidium'' is derived from combination of the grc, τρία (, "three") + la, brachium ("arm") + diminutive suffix . The specific name ''T. heraldicum'' references the similarity of the pattern of this fossil with the well-known heraldic triskelion design, such as the coat of arms of the Isle of Man. Occurrence ''Tribrachidium'' fossils were first discovered in the Ediacara Member of the Rawnslay Quartzite, Flinders Ranges in South Australia. This fossil is also known from the Mogilev Formation in the Dniester River Basin, Podolia, Ukraine and from the Verkhovka, Zimnegory and Yorga Formations in the White Sea area of the Arkhangelsk Region, Russia. Description ''T. heraldicum'' is preserved as negative impressio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ediacaran Life
The Ediacaran (; formerly Vendian) biota is a taxonomic period classification that consists of all life forms that were present on Earth during the Ediacaran Period (). These were composed of enigmatic tubular and frond-shaped, mostly sessile, organisms. Trace fossils of these organisms have been found worldwide, and represent the earliest known complex multicellular organisms. The Ediacaran biota may have undergone evolutionary radiation in a proposed event called the Avalon explosion, . This was after the Earth had thawed from the Cryogenian period's extensive glaciation. This biota largely disappeared with the rapid increase in biodiversity known as the Cambrian explosion. Most of the currently existing body plans of animals first appeared in the fossil record of the Cambrian rather than the Ediacaran. For macroorganisms, the Cambrian biota appears to have almost completely replaced the organisms that dominated the Ediacaran fossil record, although relationships are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
