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Chieseiceras
''Chieseiceras'' is an extinct genus of ammonites in the family of Ceratitidae ''Ceratitidae'' is an extinct family of ammonite cephalopods. Fossils of ''Ceratitidae'' are found in the Triassic marine strata throughout the world, including Asia, Europe, the Middle East, North America, and Oceania. Selected genera Subfam .... Species are known from the Triassic of Hungary, Italy and Switzerland. References ''Chieseiceras''at the Paleobiology Database Ceratitida genera Ceratitidae {{Ceratitida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceratitidae
''Ceratitidae'' is an extinct family of ammonite cephalopods. Fossils of ''Ceratitidae'' are found in the Triassic marine strata throughout the world, including Asia, Europe, the Middle East, North America, and Oceania. Selected genera Subfamily Ceratitinae Mojsisovics 1879 * '' Acanthoceratites'' Schrammen 1928 * '' Alloceratites'' Spath 1934 * ''Ceratites ''Ceratites'' is an extinct genus of ammonite cephalopods. These nektonic carnivores lived in marine habitats in what is now Europe, during the Triassic, from the upper-most Anisian to the lower Ladinian The Ladinian is a stage and age in the ...'' de Haan 1825 * '' Eogymnotoceras'' Bucher 1988 * '' Latemarites'' Brack and Rieber 1993 Subfamily Nevaditinae Tozer 1994 * '' Alkaites'' Balini et al. 2006 * '' Chieseiceras'' Brack and Rieber 1986 * '' Detoniceras'' Manfrin and Mietto 1991 * '' Nevadites'' Smith 1914 * '' Paranevadites'' Tozer 1994 * '' Xenoprotrachyc'' Subfamily Paraceratitinae Silberling 1962 * '' Br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceratitida Genera
Ceratitida is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the Upper Permian, the exception being the phylloceratids which gave rise to the great diversity of post Triassic ammonites. Ceratitids overwhelmingly produced planospirally coiled discoidal shells that may be evolute with inner whorls exposed or involute with only the outer whorl showing. In a few later forms the shell became subglobular, in others, trochoidal or uncoiled. Sutures are typically ceratitic, with smooth saddles and serrate or digitized lobes. In a few the sutures are goniatitic while in others they are ammonitic. Taxonomy * Ceratitida **Ceratitoidea **Choristoceratoidea **Clydonitoidea **Danubitoidea **Dinaritoidea ** Lobitoidea ** Meekoceratoidea ** Megaphyllitoidea ** Nathorstitoidea **Noritoidea **Otoceratoidea **Pinacoceratoidea **Ptychitoidea ** Sageceratoidea **Tropitoidea **Xenodiscoidea Only eight superfamilies are shown i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |