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Prionoceras
Prionoceras is an extinct genus of ammonites. It lived during the Devonian period. Prionoceras divisum is the type specimen from the Fichtel Mountains The Fichtel MountainsRandlesome, C. et al. (2011). ''Business Cultures in Europe'', 2nd ed., Routledge, Abingdon and New York, p. 52. . (german: Fichtelgebirge, cs, Smrčiny), form a small horseshoe-shaped mountain range in northeastern Bavaria .... Specimens have been found in Algeria, China, Germany, Kazakhstan, Morocco, and Poland. References External links * Prionoceratidae Goniatitida genera {{Goniatitida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prionoceras Divisum
Prionoceras is an extinct genus of ammonites. It lived during the Devonian period. Prionoceras divisum is the type specimen from the Fichtel Mountains The Fichtel MountainsRandlesome, C. et al. (2011). ''Business Cultures in Europe'', 2nd ed., Routledge, Abingdon and New York, p. 52. . (german: Fichtelgebirge, cs, Smrčiny), form a small horseshoe-shaped mountain range in northeastern Bavaria .... Specimens have been found in Algeria, China, Germany, Kazakhstan, Morocco, and Poland. References External links * Prionoceratidae Goniatitida genera {{Goniatitida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpheus Hyatt
Alpheus Hyatt (April 5, 1838 – January 15, 1902) was an American zoologist and palaeontologist. Biography Alpheus Hyatt II was born in Washington, D.C. to Alpheus Hyatt and Harriet Randolph (King) Hyatt. He briefly attended the Maryland Military Academy and Yale University, and after graduating from Harvard University in 1862, he enlisted as a private in the Massachusetts Volunteer Infantry for the Civil War, emerging with the rank of captain. After the war he worked for a time at the Essex Institute (now the Peabody Essex Museum in Salem, Massachusetts. He and a colleague founded '' American Naturalist'' and Hyatt served as editor from 1867 to 1870. He became a professor of paleontology and zoology at Massachusetts Institute of Technology in 1870, where he taught for eighteen years, and was professor of biology and zoology at Boston University from 1877 until his death in 1902. He also served as curator of the Boston Society of Natural History, where his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammonite
Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttlefish) than they are to shelled nautiloids such as the living ''Nautilus'' species. The earliest ammonites appeared during the Devonian, with the last species vanishing during the Cretaceous–Paleogene extinction event. Ammonites are excellent index fossils, and linking the rock layer in which a particular species or genus is found to specific geologic time periods is often possible. Their fossil shells usually take the form of planispirals, although some helically spiraled and nonspiraled forms (known as heteromorphs) have been found. The name "ammonite", from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams' horns. Pliny the Elder ( 79 AD near Pomp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulletins Of American Paleontology
''Bulletins of American Paleontology'' is a peer-reviewed scientific journal published by the Paleontological Research Institution and issued biannually that features monographs and dissertations in the field of paleontology and other related subjects. Founded by Gilbert Harris in 1895, it is the oldest continuously-published paleontological periodical in the Western Hemisphere, and one of the oldest in the world. History In 1895, Gilbert Harris, a professor of geology at Cornell University, established ''Bulletins of American Paleontology'' in order to publish his research on Paleocene and Eocene mollusk fossils. Printing originally took place at Harris's own printing enterprise at McGraw Hall, Cornell. Publication of ''Bulletins'' was transferred to the Paleontological Research Institution The Paleontological Research Institution, or PRI, is a paleontological organization in Ithaca, New York, with a mission including both research and education. PRI is affiliated with Cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devonian
The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, where rocks from this period were first studied. The first significant adaptive radiation of life on dry land occurred during the Devonian. Free-sporing vascular plants began to spread across dry land, forming extensive forests which covered the continents. By the middle of the Devonian, several groups of plants had evolved leaves and true roots, and by the end of the period the first seed-bearing plants appeared. The arthropod groups of myriapods, arachnids and hexapods also became well-established early in this period, after starting their expansion to land at least from the Ordovician period. Fish reached substantial diversity during this time, leading the Devonian to often be dubbed the Age of Fishes. The placoderms began dominating ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fichtel Mountains
The Fichtel MountainsRandlesome, C. et al. (2011). ''Business Cultures in Europe'', 2nd ed., Routledge, Abingdon and New York, p. 52. . (german: Fichtelgebirge, cs, Smrčiny), form a small horseshoe-shaped mountain range in northeastern Bavaria, Germany. They extend from the valley of the Red Main River to the Czech border, a few foothills spilling over into the Czech Republic. They continue in a northeasterly direction as the Elster Mountains, and in a southeasterly direction as the Upper Palatine Forest. The Fichtel Mountains contain an important nature park, the Fichtel Mountain Nature Park, with an area of . Etymology The first person to write about the Fichtel Mountains, Matthias of Kemnath (actually Matthias Widmann, born 23 February 1429 in Kemnath) reported in 1476: ''Ein bergk, hoch, weitt, wolbekant ligt in Beiern, gnant der Fichtelberg'' ("A mountain, high, wide and well-known, lies in Bavaria, known as the Fichtelberg"). In descriptions of the border in 1499 and 15 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Famennian
The Famennian is the latter of two faunal stages in the Late Devonian Epoch. The most recent estimate for its duration estimates that it lasted from around 371.1 million years ago to 359.3 million years ago. An earlier 2012 estimate, still used by the International Commission on Stratigraphy, estimated that it lasted from million years ago to million years ago. It was preceded by the Frasnian stage and followed by the Tournaisian stage. Major events In the seas, a novel major group of ammonoid cephalopods called clymeniids appeared, underwent tremendous diversification and spread worldwide, then just as suddenly went extinct. The beginning of the Famennian is marked by the final stages of a major extinction event, the Kellwasser Event, which is the largest component of the Late Devonian Mass extinction. The end of the Famennian experiences a smaller but still quite severe extinction event, the Hangenberg Event. A brief episode of glaciation, possibly linked to the Hangenber ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-Atlas
The Anti-Atlas ( ar, الأطلس الصغير, shi, Aṭlas Mẓẓiyn), also known as Lesser Atlas or Little Atlas is a mountain range in Morocco, a part of the Atlas Mountains in the northwest of Africa. The Anti-Atlas extends from the Atlantic Ocean in the southwest toward the northeast, to the heights of Ouarzazate and further east to the city of Tafilalt, altogether a distance of approximately 500 km. The range borders on the Sahara to the south."Anti-Atlas" (or Jebel Saghru), ''The Encyclopædia Britannica'', 1910. In some contexts, the Anti-Atlas is considered separate from the Atlas Mountains system, as the prefix "anti" (i.e. opposite) implies. Geography The summits of the Anti-Atlas reach average heights of , with a few peaks reaching higher. To the north lies a plateau at 1700–1800 m in height. To the south lie the Sahara highlands at approximately 700 m. On the heights of Ouarzazate, the massif is cut through by the Draa valley, opening towards t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saoura
The Saoura () is a valley in southwestern Algeria. It is formed by the wadi known as Oued Saoura, formed from the confluence of the Oued Guir and Oued Zouzfana at Igli.] From Igli it runs through Béchar Province past the towns of Béni Abbès, Tamtert, El Ouata, Béni Ikhlef, Kerzaz, Timoudi, Ouled Khoudir, and Ksabi then passes under the N6 highway before reaching the endorheic lake Sebkhel el Melah. From 1962 to 1974 it was the name of a wilaya (province) covering present-day Béchar Province, Tindouf Province and Adrar Province Adrar ( ar, ولاية أدرار, ber, ⴰⴷⵔⴰⵔ) is a province (''wilaya'') in southwestern Algeria, named after its capital Adrar. It is the second-largest province, with an area of 424,948 km2, roughly the size of the US state .... References Valleys of Algeria Geography of Béchar Province {{Béchar-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prionoceratidae
Prionoceratidae is one of seven families of the superfamily Prionoceratoidea, a member of the Goniatitida order. They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopuses, and cuttlefish Cuttlefish or cuttles are marine molluscs of the order Sepiida. They belong to the class Cephalopoda which also includes squid, octopuses, and nautiluses. Cuttlefish have a unique internal shell, the cuttlebone, which is used for control of ..., and more distantly to the nautiloids. References The Paleobiology Databaseaccessed on 10/01/07 Goniatitida families Prionocerataceae {{Goniatitida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
