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Alasmidonta Mccordi
''Alasmidonta mccordi'', the Coosa elktoe, was a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. Because no individuals have been seen recently, it is assumed to be extinct. This species was endemic to the Coosa River, and was only known from a specimen collected in St. Clair County, Alabama St. Clair County is a county located in the central portion of the U.S. state of Alabama."ACES Winston County Office" (links/history), Alabama Cooperative Extension System (ACES), 2007, webpageACES-St.Clair As of the 2020 census, the populatio ... in shallow, swift water. No specimens have been found since the construction of impoundments on the river. References Extinct bivalves mccordi Extinct animals of the United States Molluscs described in 1964 Taxonomy articles created by Polbot {{Unionidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
