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Aipoceratidae
The Aipoceratidae are a small family of Carboniferous nautilids which have smooth shells and loosely coiled to faintly impressed whorls and in which the aperture may be modified at maturity. The Aipoceratidae include the Lower Carboniferous ''Aipoceras ''Aipoceras'' is a genus of loosely coiled aipoceratid nautiloid Nautiloids are a group of marine cephalopods ( Mollusca) which originated in the Late Cambrian and are represented today by the living ''Nautilus'' and ''Allonautilus''. Fossil ...'' and '' Asymptoceras'', and '' Librovitschiceras'' from the Upper Carboniferous. The Solenochilidae are closely related.Bernhard Kummel, 1964. Nautiloidea - Nautilida; Treatise on Invertebrate Paleontology, Park K. Geological Society of America and University of Kansas Press. References Prehistoric nautiloid families Mississippian first appearances Pennsylvanian extinctions {{paleo-nautiloid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aipoceras
''Aipoceras'' is a genus of loosely coiled aipoceratid nautiloid Nautiloids are a group of marine cephalopods ( Mollusca) which originated in the Late Cambrian and are represented today by the living ''Nautilus'' and ''Allonautilus''. Fossil nautiloids are diverse and speciose, with over 2,500 recorded species ...s with laterally compressed whorls; shells expanding moderately to fairly rapidly with a tendency to uncoil at maturity. Juvenile forms are somewhat cyrtoconic. The apical end forms a hook. ''Aipoceras'' has been found in Lower Mississippian strata in the U.S. References * Bernard Kummel, 1964. Nautiloidea - Nautilida; Treatise on Invertebrate Paleontology. Geological Society of America.''Aipoceras''iFossilworks Prehistoric nautiloid genera Fossil taxa described in 1884 {{paleo-nautiloidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asymptoceras Newloni
''Asymptoceras'' is a genus of aipoceratids (Nautiloidea) similar to ''Aipoceras'' but tightly coiled and with only part of the body chamber divergent from the previous whorl. Shell evolute, expanding fairly rapidly; umbilicus open, perforate; whorl section ovoid to subquadrate. ''Asymptoceras'' is known from Mississippian (Lower Carboniferous) sediments in Europe and North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car .... References * Bernard Kummel, 1964. Nautiloidea - Nautilida; Treatise on Invertebrate Paleontology, Part K. Geological Society of America. ''Asymptoceras''iFossilworks Prehistoric nautiloid genera {{paleo-nautiloidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asymptoceras
''Asymptoceras'' is a genus of aipoceratids (Nautiloidea) similar to ''Aipoceras'' but tightly coiled and with only part of the body chamber divergent from the previous whorl. Shell evolute, expanding fairly rapidly; umbilicus open, perforate; whorl section ovoid to subquadrate. ''Asymptoceras'' is known from Mississippian (Lower Carboniferous) sediments in Europe and North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car .... References * Bernard Kummel, 1964. Nautiloidea - Nautilida; Treatise on Invertebrate Paleontology, Part K. Geological Society of America. ''Asymptoceras''iFossilworks Prehistoric nautiloid genera {{paleo-nautiloidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Librovitschiceras
''Librovitschiceras'' is a genus of nautilids, in the subclass Nautiloidea, with a triangular cross section, included in the family Aipoceratidae. Its exact relationship with other aipoceratids is uncertain. Whorls are in contact, the siphuncle is slightly removed from the venter, which has a deep sinus. ''Librovitschiceras'' lived during the Late Carboniferous in what is now western Russia. ''Aipoceras'' and ''Asymptoceras ''Asymptoceras'' is a genus of aipoceratids (Nautiloidea) similar to ''Aipoceras'' but tightly coiled and with only part of the body chamber divergent from the previous whorl. Shell evolute, expanding fairly rapidly; umbilicus open, perforate; ...'' are possibly related. References * Bernhard Kummel, 1964. Nautiloidea - Nauilida; Treatise on Invertebrate Paleontology, Part K. Geological Society of America. Fossilworks, ''Librovitschiceras'' Prehistoric nautiloid genera {{paleo-nautiloidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solenochilidae
Solenochilidae is a small family of Carboniferous and Early Permian nautilids, similar and related to the Aipoceratidae The Aipoceratidae are a small family of Carboniferous nautilids which have smooth shells and loosely coiled to faintly impressed whorls and in which the aperture may be modified at maturity. The Aipoceratidae include the Lower Carboniferous ''A ... that comprises genera with whorls in contact and which develop laterally projecting umbilical spines by maturity. The included genera '' Solenochilus'' and '' Acanthonautilus'' are quite similar in external form but differ in their siphuncles. Those of ''Solenochilus'' have more strongly inflated siphuncle segments and more tightly curved septal necks. References * Bernhard Kummel, 1964. Nautiloidea - Nautilida; Treatise on Invertebrate Paleontology, Part K. Geological Society of America and University of Kansas Press. Prehistoric nautiloid families Mississippian first appearances Cisuralian extinctions [...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 longtime a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
