An owner or developer, at his option, may obtain final approval of a portion or section of a subdivision, provided he meets all the requirements of this ordinance in the same manner as is required for a complete subdivision. Any phasing must be shown on the Preliminary Plat. Any portion of a final plat that developed in sections or phases must correspond to the sections or phases on the Preliminary Plat. In the event the developer chooses to submit a final plat that does not agree with the approved phasing plan contained on an approved preliminary plat, the preliminary plat must be resubmitted with amended phasing indicated. In the event a subdivision and the final plat thereof is approved by the City Council in sections, each Final Plat of each section is to carry the name of the entire subdivision, but is to be distinguished from each other section by a distinguishing letter, number or subtitle designating the Phase. Block numbers shall run consecutively throughout the entire subdivision, even though such subdivision may be finally approved in sections.