Megalonychidae is a family of extinct ground sloths that lived during the Late Pleistocene and Holocene epochs. These large mammals were primarily herbivorous and are known for their distinctive long claws, which they used for foraging and climbing. Fossils of Megalonychidae have been found in various locations across the Americas, indicating their wide distribution. Members of the Megalonychidae family, such as Megalonchus and Eremotherium, were adapted to a variety of habitats, from forests to grasslands. They played a significant role in their ecosystems, influencing plant growth and serving as prey for large predators. Their extinction is believed to be linked to climate change and human activities.