There is some criticism of exactly where this fossil fits on the evolutionary tree with respect to man, but as one report put it, if this species isn’t our great, great… grandmother, it’s definitely a great, great… aunt. One thing isn’t disputed: this and other fossils found at the ancient lake site in Germany are some of the best ever found from the period.

Meet “Ida,” the small “missing link” fossil that’s created a big media splash and will likely continue to make waves among those who study human origins.

In a new book, documentary, and promotional Web site, paleontologist Jorn Hurum, who led the team that analyzed the 47-million-year-old fossil seen above, suggests Ida is a critical “missing link” species in primate evolution.

The fossil, he says, bridges the evolutionary split between higher primates such as monkeys, apes, and humans and their more distant relatives such as lemurs.

“This is the first link to all humans,” Hurum, of the Natural History Museum in Oslo, Norway, said in a statement. Ida represents “the closest thing we can get to a direct ancestor.”

Ida, properly known as Darwinius masillae, has a unique anatomy. The lemur-like skeleton features primate-like characteristics, including grasping hands, opposable thumbs, clawless digits with nails, and relatively short limbs.