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William Harold Fritz
William Harold Fritz (born Aug. 24, 1928, died June 9, 2009) was a geologist who worked for the Geological Survey of Canada. He is known for his work in stratigraphy and on olenelloid trilobites. Biography Fritz was born in Cathlamet, Washington, where his father practised medicine for over 50 years. He graduated from Wahkiakum High School in 1946. After Air Force service during the Korean War, he completed his PhD in Geology at the University of Washington in 1960. He first worked for the Shell Oil Company in Alaska, then in 1964 he moved to Canada taking up a position as a research geologist with the Geological Survey. After retiring he and his wife Judie carried out geological work in Nevada. They had one son, Peter. Geological Work Fritz's work focussed mostly on the Cambrian period. In 1966 and 1967 he, along with Judie and Peter as well as other geologists, spent two summers working on the Burgess Shale in the Canadian Rockies, discovered by Walcott in 1909. They found many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological Survey Of Canada
The Geological Survey of Canada (GSC; french: Commission géologique du Canada (CGC)) is a Canadian federal government agency responsible for performing geological surveys of the country, developing Canada's natural resources and protecting the environment. A branch of the Earth Sciences Sector of Natural Resources Canada, the GSC is the country's oldest scientific agency and was one of its first government organizations. History In September 1841, the Province of Canada legislature passed a resolution that authorized the sum of £1,500 sterling be granted to the government for the estimated expense of performing a geological survey of the province. In 1842, the Geological Survey of Canada was formed to fulfill this request.Christy Vodden (1992)No Stone Unturned: The First 150 years of the Geological Survey of Canada Geological Survey of Canada Web site William Edmond Logan was in Montreal at the time and made it known that he was interested in participating in this survey. G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cirquella
''Cirquella'' is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the Atdabanian stage, in the former continent Laurentia. Description Only the thin and lightly calcified headshields (or cephalon) of ''Cirquella'' have ever been found. It is very flat, almost oval in outline, the length about 85% of the width. The central area of the cephalon (or glabella The glabella, in humans, is the area of skin between the eyebrows and above the nose. The term also refers to the underlying bone that is slightly depressed, and joins the two brow ridges. It is a cephalometric landmark that is just superior to ...) is moderately tapered forward. The furrows dividing the glabella are only weakly developed. The back of the eye ridge is opposite the first lobe (L1) of the glabella in front of the band (or occipital ring) at the back of the glabella. In ''Cirquella espinata'' there is no genal spine but a slight angularity of margin opposit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yukonides
Yukoniidae S. Zhang, 1980 'nom. transl''. et ''emend''. Jell, ''in'' Whittington ''et al''., 1997 ''ex'' Yukoniinae S. Zhang in W. Zhang, Lu ''et al''., 1980is a small family of trilobites, belonging to the Eodiscina. Type Genus and species ''Yukonia intermedia'' Palmer 1968 (Plate 2, figures 14, 17–19, 22, 23, 27, 28; text figure 4). Taxonomy The Yukoniidae probably descended from the Tsunydiscidae and gave rise to the Eodiscidae. cited in Description Yukoniidae are typically isopygous, belonging to the Superfamily Eodiscoidea. The narrow glabella The glabella, in humans, is the area of skin between the eyebrows and above the nose. The term also refers to the underlying bone that is slightly depressed, and joins the two brow ridges. It is a cephalometric landmark that is just superior to ... is usually parallel sided, anteriorly rounded and separated from smooth anterior border by broad (''sag''.) preglabellar field which occupies about 25% of cephalic length e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variopelta
''Variopelta'' is an extinct genus from a well-known class of fossil marine arthropods, the trilobite Trilobites (; meaning "three lobes") are extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the ...s. It lived during the Botomian stage, which lasted from approximately 524 to 518.5 million years ago. This faunal stage was part of the Cambrian Period. References Cambrian trilobites Cambrian trilobites of North America Ptychopariida genera Ptychopariidae {{Ptychopariida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sekwiaspis
''Sekwiaspis'' is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the late Atdabanian Cambrian Stage 3 is the still unnamed third stage of the Cambrian. It succeeds Cambrian Stage 2 and precedes Cambrian Stage 4, although neither its base nor top have been formally defined. The plan is for its lower boundary to correspond approx ... stage, which lasted from 530 to 524 million years ago during the early part of the Cambrian Period. References Cambrian trilobites Cambrian trilobites of North America {{trilobite-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palmettaspis
''Palmettaspis'' is an extinct genus of trilobite in the order Olenellida. There are at least two described species in ''Palmettaspis''. Species These two species belong to the genus ''Palmettaspis'': * † ''Palmettaspis consorta'' Fritz * † ''Palmettaspis parallela'' Fritz References Trilobites Articles created by Qbugbot {{trilobite-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nehanniaspis
''Nehanniaspis'' is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. Nehanniaspis lived during the late Atdabanian stage, which lasted during the early part of the Cambrian Period The Cambrian Period ( ; sometimes symbolized C with bar, Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million ..., approximately 524 to 530 million years ago References Cambrian trilobites Cambrian trilobites of North America Corynexochida genera Edelsteinaspididae {{Corynexochida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mummaspis
''Mummaspis'' is an extinct genus from a well-known class of fossil marine arthropods, the trilobites, with five known species. It lived during the early part of the Botomian stage, which lasted from approximately 524 to 518.5 million years ago. This faunal stage was part of the Cambrian Period. Taxonomy ''Mummaspis'' is the genus closest to the common ancestor of ''Laudonia'', the Biceratopsinae and the Bristoliinae. Including the species of ''Fritzolenellus'', this clade is the sister group of ''Wanneria walcottana'' and the Holmiidae. Distribution * ''M. occidens'' was collected in the Lower Cambrian ( lower ''Olenellus''-zone) of Alberta, Canada (Mural Formation, in the talus slope immediately west of Mumm Peak, and from the middle Mural Formation, 125 m above the base of that formation, just north of the Mount Robson Provincial Park Mount Robson Provincial Park is a provincial park in the Canadian Rockies with an area of 2,249 km². The park is located ent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keeleaspis
''Keeleaspis'' is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the late Atdabanian Cambrian Stage 3 is the still unnamed third stage of the Cambrian. It succeeds Cambrian Stage 2 and precedes Cambrian Stage 4, although neither its base nor top have been formally defined. The plan is for its lower boundary to correspond approx ... stage, which lasted from 530 to 524 million years ago during the early part of the Cambrian Period. References Cambrian trilobites Fossils of British Columbia Corynexochida genera Edelsteinaspididae {{Corynexochida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holmiella
''Holmiella'' is a genus of fungi in the order Patellariales. The genus name of ''Holmiella'' is in honour of Kerstin Holm (b.1924), a Swedish botanist (Mycology) who was married to architect Lennart Holm (1921 - 2012) and worked at Uppsala University. The genus was circumscribed by Orlando Petrini, Gary Joseph Samuels and Emil Müller in Ber. Schweiz. Bot. Ges. vol.89 on page 83 in 1979. According to the GBIF The Global Biodiversity Information Facility (GBIF) is an international organisation that focuses on making scientific data on biodiversity available via the Internet using web services. The data are provided by many institutions from around the ... it has 6 species; * ''Holmiella domackae'' * ''Holmiella juniperi-semiglobosae'' * ''Holmiella junipericola'' * ''Holmiella macrospora'' * ''Holmiella sabina'' * ''Holmiella taurus'' References External links Index Fungorum Dothideomycetes enigmatic taxa Dothideomycetes genera {{Dothideomycetes-stu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
