Entablature being called petrification. The structure of the entablature varies with the three classical orders: Doric, Ionic, and Corinthian. In each, the proportions of the subdivisions (architrave, frieze, cornice) are defined by the proportions of the column in the order. In Roman and Renaissance interpretations, it is usually approximately a quarter of the height of the column. Variants of entablature that do not fit these models are usually derived from them. Pure classical Doric entablature is simple. The architrave, the lowest band, is split, from bottom to top, into the guttae, the regulae, and the taenia. The frieze is dominated by
Ancient Greek temple a thin "abacus". The eponymous Corinthian capital of the Corinthian order is crowned by rings of stylised acanthus leaves, forming tendrils and volutes that reach to the corners of the "abacus". The capitals support the entablature. In the Doric order, the entablature always consists of two parts, the architrave and the Doric frieze (or triglyph frieze). The Ionic order of Athens and the Cyclades also used a frieze above an architrave, whereas the frieze remained unknown in the Ionic architecture of Asia Minor until the 4th century BC. There, the architrave was directly followed by the "dentil". The frieze was