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Acratocnus is an extinct genus of Caribbean sloths that were found on Cuba, Hispaniola (today the Dominican Republic and Haiti), and Puerto Rico during the Late Pleistocene and early-mid Holocene. Taxonomy
Megalocnid sloths were relatively small compared to mainland ground sloths, [11] though they were the largest mammals native to the Caribbean islands [4] with the largest species Megalocnus rodens estimated to weigh around 146 kilograms (322 lb) [11] or 270 kilograms (600 lb), [4] with the smallest genera Neocnus and Acratocnus estimated to only weigh 8–15 kilograms (18–33 lb).
Acratocnus odontrigonus, a sloth known only from Puerto Rico. Acratocnus major, described on the basis of somewhat larger Puerto Rican sloth bones, simply represents large individuals of A. odontrigonus. [32] A small sloth femur has been found at an early Oligocene site in southwestern Puerto Rico. It is not sufficiently diagnostic to permit ...
Ground sloths had dispersed into the Caribbean already by 31 million years ago, as evidenced by a femur found in Puerto Rico. [34] During the Miocene, sloths diversified, with the major families of sloths appearing during this period, [34] with diversity waxing and waning over the course of the Miocene. Megalonychid and mylodontid sloths had ...
Image credits: an1malpulse #5. Animal campaigners are calling for a ban on the public sale of fireworks after a baby red panda was thought to have died from stress related to the noise.
Lesser Puerto Rican ground sloth (Acratocnus odontrigonus) - The lesser Puerto Rican ground sloth became extinct approximately 3000–4000 years ago. Puerto Rican caracara ( Caracara latebrosus ) Puerto Rican plate-tooth ( Elasmodontomys obliquus ) - The Puerto Rican plate-tooth, giant hutia or Puerto Rican paca became extinct approximately in ...
"The IUCN Red List of Threatened Species: Mammals of Puerto Rico". IUCN. 2001 dead link ] "Mammal Species of the World". Smithsonian National Museum of Natural History. 2005. Archived from the original on 27 April 2007 "Animal Diversity Web". University of Michigan Museum of Zoology. 1995–2006
Megalocnus ("great sloth" in Greek) is a genus of extinct ground sloths that were native to Cuba during the Pleistocene and Holocene epochs. They were among the largest of the Caribbean sloths (Megalocnidae), with individuals estimated to have weighed up to 270 kg (595 lbs) [1] to 200 kg (440 lbs), around the size of a black bear when alive. [2]