Evolution of the cochlea signals that displace the eardrum by a mere picometre. Because of its prominence and preserved state in the fossil record, until recently, the ear had been used to determine phylogeny. The ear itself contains different portions, including the outer ear, the middle ear, and the inner ear and all of these show evolutionary changes that are often unique to each lineage [14]. It was the independent evolution of a tympanic middle ear in the Triassic era that produced strong selection pressures towards improved hearing organs in the separate lineages of land vertebrates. The cochlea is the tri-chambered auditory detection portion
Stirrup jar termed "unpainted" although in fact the viewer sees the first coat. It is not the color unpainted fired terra cotta would have; that would be variegated most likely ranging from red to black depending on the firing parameters and content of the clay. For example, Black Glazed Ware features a single coat of black glaze. Red-figure vases are washed with a black slip on which red figures are painted; black-figure vases, a red wash with black figures. Stirrup jars do not bear human figures; nevertheless, some are quite ornamental, with most of the painting surfaces filled with motifs. The stirrup