What type of natural object dominates Georgia O'Keeffe's 1944 Pelvis series?

Pelvic bones dominate Georgia O'Keeffe's 1944 Pelvis series. She used the bones' openings and curved structure as subjects for paintings that combine recognizable anatomy with abstraction.

The series reflects O'Keeffe's long interest in natural objects found in the landscape. She often isolated bones against broad areas of sky or color, encouraging viewers to see them as formal shapes as well as remnants of animals.

The paintings are sometimes interpreted only through symbolic or bodily associations. O'Keeffe resisted narrow explanations of her imagery and emphasized visual experience, scale, color, and the beauty of objects that many people might overlook.