def _place_tables_section(skeleton_section, sheet, keys_section):
    """
    Place data into skeleton for either a paleo or chron section.
    :param dict skeleton_section: Empty or current progress of skeleton w/ data
    :param dict sheet: Sheet metadata
    :param list keys_section: Paleo or Chron specific keys
    :return dict: Skeleton section full of data
    """
    logger_excel.info("enter place_tables_section")
    try:
        logger_excel.info("excel: place_tables_section: placing table: {}".format(sheet["new_name"]))
        new_name = sheet["new_name"]
        logger_excel.info("placing_tables_section: {}".format(new_name))
        # get all the sheet metadata needed for this function
        idx_pc = sheet["idx_pc"] - 1
        idx_model = sheet["idx_model"]
        idx_table = sheet["idx_table"]
        table_type = sheet["table_type"]
        data = sheet["data"]
        # paleoMeas or chronMeas key
        key_1 = keys_section[0]
        # paleoModel or chronModel key
        key_2 = keys_section[1]
        # Is this a measurement, or distribution table?
        if idx_table:
            # Yes, a table idx exists, so decrement it.
            idx_table = sheet["idx_table"] - 1
        # Is this a ensemble, dist, or summary table?
        if idx_model:
            # Yes, a model idx exists, so decrement it.
            idx_model -= 1
    except Exception as e:
        logger_excel.debug("excel: place_tables_section: error during setup, {}".format(e))

    # If it's measurement table, it goes in first.
    try:
        if table_type == "measurement":
            skeleton_section[idx_pc][key_1][idx_table] = data
        # Other types of tables go one step below
        elif table_type in ["ensemble", "distribution", "summary"]:
            if table_type == "summary":
                skeleton_section[idx_pc][key_2][idx_model]["summaryTable"] = data
            elif table_type == "ensemble":
                skeleton_section[idx_pc][key_2][idx_model]["ensembleTable"] = data
            elif table_type == "distribution":
                skeleton_section[idx_pc][key_2][idx_model]["distributionTable"][idx_table] = data
    except Exception as e:
        logger_excel.warn("excel: place_tables_section: Unable to place table {}, {}".format(new_name, e))
    logger_excel.info("exit place_tables_section")
    return skeleton_section