Darwinius masillae - "Ida" was discovered in 1983 and described scientifically in 2007. The genus Darwinius was named to commemorate the bicentennial of the birth of Charles Darwin and the name masillae honors the location where it was found. The fossil is 23 inches long with the head and body making up about 9.4 inches of this length. The authors of the paper describing Ida classified her as a member of the primate family Notharctidae and the superfamily Cercamoniidae, which suggests that it is a significant transitional form, or link between prosimian and simian (anthropoid) primate lineages. Ida's teeth revealed that she had unerupted molars in her jaw, indicating that she was a juvenile probably 9-10 months old, with full adulthood being reached at 36 months. The shape of her jagged molars would have allowed her to slice food, such as leaves and seeds. This is confirmed by the gut contents. The lack of a baculum (penis bone) found in all lower primates, indicates she was a female. She shares some characteristics with prosimians (like lemurs), but lacks the toothcombs and grooming claw which are lemur attributes. She does have opposable big toes and nail bearing fingers which confirm her to be a primate. A foot bone called the talus bone links Ida to humans. Dimensions: 22" x 15-1/2" x 1"