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Saukiidae
''Saukiidae'' is a family of trilobites of the Asaphida order. These fast-moving low-level epifaunal deposit feeders lived in the Cambrian and Ordovician The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start ... periods, from 494.0 to 478.6 Ma. Genera *'' Anderssonella'' Kobayashi 1936 *'' Calvinella'' Walcott 1914 *'' Diemanosaukia'' Jago and Corbett 1990 *'' Linguisaukia'' Peng 1984 *'' Lophosaukia'' Shergold 1971 *'' Mictosaukia'' Shergold 1975 *'' Prosaukia'' Ulrich and Resser 1933 *'' Pseudocalvinella'' Qiu 1984 *'' Saukia'' Walcott 1914 *'' Saukiella'' Ulrich and Resser 1933 *'' Stigmaspis'' Nelson 1951 *'' Tellerina'' Ulrich and Resser 1933 References Dikelokephaloidea Trilobite families Cambrian first appearances Cambrian extinctions {{Asaphida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saukiidae
''Saukiidae'' is a family of trilobites of the Asaphida order. These fast-moving low-level epifaunal deposit feeders lived in the Cambrian and Ordovician The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start ... periods, from 494.0 to 478.6 Ma. Genera *'' Anderssonella'' Kobayashi 1936 *'' Calvinella'' Walcott 1914 *'' Diemanosaukia'' Jago and Corbett 1990 *'' Linguisaukia'' Peng 1984 *'' Lophosaukia'' Shergold 1971 *'' Mictosaukia'' Shergold 1975 *'' Prosaukia'' Ulrich and Resser 1933 *'' Pseudocalvinella'' Qiu 1984 *'' Saukia'' Walcott 1914 *'' Saukiella'' Ulrich and Resser 1933 *'' Stigmaspis'' Nelson 1951 *'' Tellerina'' Ulrich and Resser 1933 References Dikelokephaloidea Trilobite families Cambrian first appearances Cambrian extinctions {{Asaphida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saukiella
''Saukiella'' is a genus of trilobites of the Saukiidae family. These fast-moving low-level epifaunal deposit feeders lived in the Cambrian and Ordovician periods, from 498.5 to 478.6 Ma. Species * ''Saukiella baikadamica'' Ergaliev 1980 * ''Saukiella diversa'' Qiu 1984 * ''Saukiella pepinensis'' (Owen, 1852) (syn. Dikelocephalus pepinensis) Distribution Fossils of species within this genus have been found in the Ordovician The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start ... sediments of Russia and in the Cambrian sediments of Canada, China, Kazakhstan and United States. References Saukiidae Asaphida genera Cambrian first appearances Ordovician extinctions Trilobites of Europe Trilobites of North America Paleozoic life of Alberta {{Asaphida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asaphida
Asaphida is a large, morphologically diverse order of trilobites found in marine strata dated from the Middle Cambrian until their extinction during the Silurian. Asaphida contains six superfamilies (Anomocaroidea, Asaphoidea, Cyclopygoidea, Dikelocephaloidea, Remopleuridoidea and Trinucleioidea), but no suborders. Asaphids comprise some 20% of described fossil trilobites. In 2020, the superfamily Trinucleoidea was proposed to be raised to an order ( Trinucleida) and removed from Asaphida. Morphology The Asaphids generally have cephalon (head) and pygidium (tail) parts similar in size, and most species have a prominent median ventral suture. Heads are often flat, and carapace furrows in the head area are often faint or not visible. Thoracic segments typically number 5 - 12, though some species have as few as two and some as many as 30. They also generally have a wide doublure, or rim, that surrounds the cephalon. This causes some specimens to be described as having a char ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wisconsin
Wisconsin () is a state in the upper Midwestern United States. Wisconsin is the 25th-largest state by total area and the 20th-most populous. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. The bulk of Wisconsin's population live in areas situated along the shores of Lake Michigan. The largest city, Milwaukee, anchors its largest metropolitan area, followed by Green Bay and Kenosha, the third- and fourth-most-populated Wisconsin cities respectively. The state capital, Madison, is currently the second-most-populated and fastest-growing city in the state. Wisconsin is divided into 72 counties and as of the 2020 census had a population of nearly 5.9 million. Wisconsin's geography is diverse, having been greatly impacted by glaciers during the Ice Age with the exception of the Driftless Area. The Northern Highland and Western Upland along wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trilobite Families
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 Atdabanian stage of the Early Cambrian period () and they flourished throughout the lower Paleozoic before slipping into a long decline, when, during the Devonian, all trilobite orders except the Proetida died out. The last extant trilobites finally disappeared in the mass extinction at the end of the Permian about 252 million years ago. Trilobites were among the most successful of all early animals, existing in oceans for almost 270 million years, with over 22,000 species having been described. By the time trilobites first appeared in the fossil record, they were already highly diversified and geographically dispersed. Because trilobites had wide diversity and an easily fossilized exoskeleton, they left an extensive fossil record. The stud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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