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Popenaiadini
Ambleminae is a subfamily of Freshwater bivalve, freshwater mussel in the family Unionidae. They are found throughout much of eastern North America south to Central America, although fossils are also known from Siberia. Some species have also been introduced to East Asia. They are the most speciose radiation of the Unionidae, with more than 300 species. Fossils of this group date back to the Late Cretaceous. Systematics The following classification is based on MolluscaBase and the MUSSEL Project database: * Tribe Amblemini Rafinesque, 1820 ** Genus ''Amblema'' Rafinesque, 1820 ** Genus ''Plectomerus'' Conrad, 1853 ** Genus ''Regianaia'' D. C. Campbell & Lydeard, 2012 * Tribe Lampsilini Ihering, 1901 ** Genus ''Actinonaias'' Crosse & P. Fischer, 1894 ** Genus ''Arotonaias'' E. von Martens, 1900 ** Genus ''Atlanticoncha'' C. H. Smith, J. M. Pfeiffer & N. A. Johnson, 2020 ** Genus ''Cambarunio'' Watters, 2018 ** Genus ''Cyprogenia'' Agassiz, 1852 ** Genus ''Cyrtonaias'' Crosse & P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unionidae
The Unionidae are a family of freshwater mussels, the largest in the order Unionida, the bivalve molluscs sometimes known as river mussels, or simply as unionids. The range of distribution for this family is world-wide. It is at its most diverse in North America, with about 297 recognised taxa, but China and Southeast Asia also support very diverse faunas. Freshwater mussels occupy a wide range of habitats, but most often occupy lotic waters, i.e. flowing water such as rivers, streams and creeks. Origin and early diversification The recent phylogenetic study reveals that the Unionidae most likely originated in Southeast and East Asia in the Jurassic, with the earliest expansions into North America and Africa (since the mid-Cretaceous) followed by the colonization of Europe and India (since the Paleocene). Life history Unionidae burrow into the substrate, with their posterior margins exposed. They pump water through the incurrent aperture, obtaining oxygen and food. They remove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |