true true 2008-03-18T18:40:45-07:00 false 40151 47098 false 102612 0 Megalonychidae ColNameProvider 0 47063 family 30 102619 1 8550 http://www.catalogueoflife.org/annual-checklist/browse_taxa.php?selected_taxon=8550 Megalonychidae 2009-04-07T02:59:48-07:00 <b>Megalonychidae</b> is a group of sloths including the extinct <i>Megalonyx</i> and the living two toed sloths. Megalonychids first appeared in the early Oligocene, about 35 million years ago, in southern Argentina (Patagonia), and spread as far as the Antilles by the early Miocene. Megalonychids first reached North America by island-hopping, about 9 million years ago, prior to the formation of the Isthmus of Panama. Some lineages of megalonychids increased in size as time progressed. The first... 2008-03-18T18:40:45-07:00 75645 true Scientific Names Megalonychidae ColNameProvider 1 8550 http://www.catalogueoflife.org/annual-checklist/browse_taxa.php?selected_taxon=8550 47098 2008-03-18T18:40:45-07:00 true true 2008-03-18T17:17:12-07:00 true 40151 40151 true 88660 0 Mammalia ColNameProvider 0 2 class 50 102641 1 1930 http://www.catalogueoflife.org/annual-checklist/browse_taxa.php?selected_taxon=1930 Mammals 2010-02-05T11:37:08-08:00 <b>Mammals</b> (formally <b>Mammalia</b>) are a class of vertebrate animals whose females are characterized by the possession of mammary glands while both males and females are characterized by sweat glands, hair, three middle ear bones used in hearing, and a neocortex region in the brain. <TaxonName 76089: Mammals in English>