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Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ludwigia (ammonite)
''Ludwigia'' is an extinct genus of ammonites in the family Graphoceratidae, which lived during the Middle Jurassic. Species *''L. murchisonae'' Sowerby, 1825, which has an elaborate ribbing and a strong ridge along the dorsal surface of the shell. Distribution Fossils of ''Ludwigia murchisonae'' are found in the Jurassic marine strata of France, Germany, Hungary, Spain and the United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan .... References External links BiolibEncyclopaedia of Life Middle Jurassic ammonites of Europe Aalenian life Hildoceratoidea Ammonitida genera {{Ammonitina-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ludwigia (beetle)
''Ludwigia'' is a monotypic beetle genus in the family Cerambycidae described by Pic in 1891. Its only species, ''Ludwigia lixoides'', was described by Hippolyte Lucas Pierre-Hippolyte Lucas (17 January 1814 – 5 July 1899) was a French entomologist. Lucas was an assistant-naturalist at the Muséum national d'Histoire naturelle. From 1839 to 1842 he studied fauna as part of the scientific commission on the ex ... in 1847. ''BioLib''. Retrieved 13 July 2020. References Agapanthiini Beetles described in 1847 {{Agapanthiini-stub ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
