Sagittal plane, imaginary plane dividing the human body into left and right halves. Sagittaria, a genus of about 20 species of aquatic plants. Sagittarians (disambiguation) Sagittarius Aiolos, a character in Saint Seiya.
the youngest layer is 7(middle point) because decomposition must occur in the middle of decomposed materials.the oldest is 12(upper one) because decomposed material are found at the top most of organisms.
