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Cryptodidymosphaerites Princetonensis
''Cryptodidymosphaerites'' is an extinct monotypic genus of pleosporale fungus of uncertain family placement. When described it contained the single species ''Cryptodidymosphaerites princetonensis''. The genus is solely known from the Early Eocene, Ypresian aged, Princeton Chert deposit of the Allenby Formation. ''Cryptodidymosphaerites'' is one of only three described fossil fungus species found in the Princeton Chert, and is a hyperparasite of ''Palaeoserenomyces allenbyensis'', itself a tar spot-like parasite of the fossil palm ''Uhlia''. Distribution ''Cryptodidymosphaerites princetonensis'' is known exclusively from the Princeton Chert, a fossil locality in British Columbia, Canada, which comprises an anatomically preserved flora of Eocene Epoch age, with rich species abundance and diversity. The chert is located in exposures of the Allenby Formation on the east bank of the Similkameen River, south of the town of Princeton, British Columbia. Notable in conj ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1998 In Paleontology
Flora Lycophytes Lycophyte research * Wehr (1998) reports, without description, ''Selaginella'' species spikemoss fossils occurring in the Eocene Okanagan highlands Klondike Mountain Formation. Fungi Fungal research *Currah, Stockey, & LePage (1998) describe the a phyllachoralean "tar spot" parasitizing ''Uhlia'' palm leaves, and host for a hyperparasitic pleosporalean fungus. They note them to be one of the first occurrences of hyperparasitic relationships in the fossil record. Arthropods Insects Molluscs Bivalves Amphibians newly named anurans Archosauromorpha Dinosaurs * A paper in the journal ''Nature'' is published by Karen Chin and others announcing the earlier discovery of a "king-sized coprolite" attributed to ''Tyrannosaurus rex''. * ''Lourinhasaurus'' gastroliths documented.Dantas et al. (1998). Sanders, Manley, and Carpenter (2001), "Table 12.1" page 167. * ''Cedarosaurus'' gastroliths documented.Sanders and Carpenter (1998). Sanders, Manley, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene
The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', " dawn") and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch. The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope 13C in the atmosphere was exceptionally low in comparison with the more common isotope 12C. The end is set at a major extinction event called the ''Grande Coupure'' (the "Great Break" in continuity) or the Eocene–Oligocene extinction event, which may be related to the impact of one or more large bolides in Siberia and in what is now Chesapeake Bay. As with other geologic periods, the strata that define the start and e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uhlia Allenbyensis
''Uhlia'' is an extinct genus of coryphoid palm containing a single species ''Uhlia allenbyensis''. The species is known from permineralized remains recovered from the Princeton Chert in British Columbia, Canada. Leaves of ''Uhlia'' have "tar spot"-like fungal infections of the extinct ascomycete ''Paleoserenomyces'', which in turn are hyperparasitized by the ascomycete ''Cryptodidymosphaerites''. Distribution ''Uhlia allenbyensis'' is known exclusively from the Princeton Chert, a fossil locality in British Columbia, Canada, which comprises an anatomically preserved flora of Eocene Epoch age, with rich species abundance and diversity. The chert is located in exposures of the Allenby Formation on the east bank of the Similkameen River, south of the town of Princeton, British Columbia. Notable in conjunction with the coal seams of the Allenby Formation are sections of chert which formed during silica-rich periods. The rapid cyclical changes from coal to chert and back are not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil Preparation
Fossil preparation is the act of preparing fossil specimens for use in paleontological research or for exhibition, and involves removing the surrounding rocky matrix and cleaning the fossil. Techniques Acid maceration Acid maceration is a technique to extract organic microfossils from a surrounding rock matrix using acid. Hydrochloric acid or acetic acid may be used to extract phosphatic fossils, such as the small shelly fossils, from a carbonate matrix. Hydrofluoric acid is also used in acid macerations to extract organic fossils from silicate rocks. Fossiliferous rock may be immersed directly into the acid, or a cellulose nitrate film may be applied ( dissolved in amyl acetate), which adheres to the organic component and allows the rock to be dissolved around it. Film pull The film pull technique is a means of recovering carbonaceous compression fossils for study under transmitted light microscopy. An acid is applied to the surface of the rock to etch away the matrix fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleofauna Of The Eocene Okanagan Highlands
The paleofauna of the Eocene Okanagan Highlands is comprised of Early Eocene arthropods, vertebrates, plus rare nematodes and molluscs found in geological formations of the northwestern North American Eocene Okanagan Highlands. The highlands lake bed series' as a whole are considered one of the great Canadian ''Lagerstätten''. The paleofauna represents that of a late Ypresian upland temperate ecosystem immediately after the Paleocene-Eocene thermal maximum, and before the increased cooling of the middle and late Eocene to Oligocene. The fossiliferous deposits of the region were noted as early as 1873, with small amounts of systematic work happening in the 1880-90s on British Columbian sites, and 1920-30s for Washington sites. Focus and more detailed descriptive work on the Okanagan Highlands site started in the last 1970's. Most of the highlands sites are preserved as compression-impression fossils in "shales", but also includes a rare permineralized biota and an amber biota. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleoflora Of The Eocene Okanagan Highlands
The paleoflora of the Eocene Okanagan Highlands includes all plant and fungi fossils preserved in the Eocene Okanagan Highlands ''Lagerstätten''. The highlands are a series of Early Eocene geological formations which span an transect of British Columbia, Canada and Washington state, United States and are known for the diverse and detailed plant fossils which represent an upland temperate ecosystem immediately after the Paleocene-Eocene thermal maximum, and before the increased cooling of the middle and late Eocene to Oligocene. The fossiliferous deposits of the region were noted as early as 1873, with small amounts of systematic work happening in the 1880-90s on British Columbian sites, and 1920-30s for Washington sites. A returned focus and more detailed descriptive work on the Okanagan Highlands sites revived in the 1970's. The noted richness of agricultural plant families in Republic and Princeton floras resulted in the term "Eocene orchards" being used for the paleofloras. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferry County, Washington
Ferry County is a county located on the northern border of the U.S. state of Washington. As of the 2020 census, the population was 7,178, making it the fourth-least populous county in Washington. The county seat and largest city is Republic. The county was created out of Stevens County in February 1899 and is named for Elisha P. Ferry, the state's first governor. History During the time of Washington Territory, the Territorial Legislature created Stevens County in 1863, containing all the land from the Columbia River to the Cascades north of the Wenatchee River from Walla Walla County. On January 20, 1864, the original Spokane County was dissolved and merged with the unorganized Stevens County. The western section of Stevens County was separated on February 18, 1899, and named Ferry County, in recognition of the Territory's last governor and the State's first governor, Elisha P. Ferry. The town of Republic is the county's seat of government, as well as the largest town. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Republic, Washington
Republic is a city in Ferry County, Washington, United States. The population was 1,073 at the 2010 census, a 12.5% increase over the 2000 census. It is the county seat of Ferry County. It was the largest mining camp in the Republic Mining District, and home to the "Hot Air Line" railway. Geography Republic is located at (48.648159, −118.734947). According to the United States Census Bureau, the city has a total area of , all of it land. Republic is located near the source of the Sanpoil River in a long graben valley bordered by the Okanagan Highlands to the west and the Kettle mountain range to the east. Curlew Lake, long (Elev: ), provides fishing and boating to summer visitors northeast of Republic. Swan Lake is small mountain lake to the south of Republic and also serves to be a popular lake for local residents and tourists to visit. Republic is surrounded by the Colville National Forest and to the south is the Colville Indian Reservation. History Republic Min ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klondike Mountain Formation
The Klondike Mountain Formation is an Early Eocene (Ypresian) geological formation located in the northeast central area of Washington state. The formation, named for the type location designated in 1962, Klondike Mountain north of Republic, Washington, is composed of volcanic rocks in the upper unit and volcanics plus lacustrine (lakebed) sedimentation in which a lagerstätte with exceptionally well-preserved plant and insect fossils has been found, along with fossil epithermal hot springs. The formation is the youngest in a group of formations which belong to the Challis Sequence rocks. The formation unconformably overlies rocks of the Eocene Sanpoil Volcanics and much older Triassic and Permian formations. The formation is bounded on its edges by a series of high-angle strike slip faults, which have contained the Klondike Mountain Formation in a series of graben structures, such as the Republic Graben. Public access to a fossiliferous outcrop at the north end of Republic i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene Okanagan Highlands
The Eocene Okanagan Highlands or Eocene Okanogan Highlands are a series of Early Eocene geological formations which span a transect of British Columbia, Canada, and Washington state, United States. Known for a highly diverse and detailed plant and animal paleobiota the paleolake beds as a whole are considered one of the great Canadian ''Lagerstätten''. The paleobiota represented are of an upland subtropical to temperate ecosystem series immediately after the Paleocene–Eocene thermal maximum, and before the increased cooling of the middle and late Eocene to Oligocene. The fossiliferous deposits of the region were noted as early as 1873, with small amounts of systematic work happening in the 1870–1920s on British Columbian sites, and 1920–1930s for Washington sites. Focus and more detailed descriptive work on the Okanagan Highland sites started in the late 1960s. Extent The majority of the paleolake deposits are compression fossils in lake bed sediments spanning a tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chert
Chert () is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide (SiO2). Chert is characteristically of biological origin, but may also occur inorganically as a chemical precipitate or a diagenetic replacement, as in petrified wood. Chert is typically composed of the petrified remains of siliceous ooze, the biogenic sediment that covers large areas of the deep ocean floor, and which contains the silicon skeletal remains of diatoms, silicoflagellates, and radiolarians. Precambrian cherts are notable for the presence of fossil cyanobacteria. In addition to microfossils, chert occasionally contains macrofossils. However, some chert is devoid of any fossils. Chert varies greatly in color (from white to black), but most often manifests as gray, brown, grayish brown and light green to rusty redW.L. Roberts, T.J. Campbell, G.R. Rapp Jr., "Encyclopedia of Mineralogy, Second Edition", 1990. R.S. M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
