dinosaur skeleton was discovered by the American Museum of Natural History . Researchers thought one of the vertebra bones was too small to fit Lucy . They say the baboon bone was somehow mixed up with Lucy 's remains . Lucy is oldest and most complete skeleton of an early human ever found .
Baboon bone was spotted by the American Museum of Natural History . Researchers thought one of the vertebra bones was too small to fit Lucy . They say the baboon bone was somehow mixed up with Lucy 's remains . Lucy is oldest and most complete fossil of an early human ever found .