CathInfo.com

The "significance" of the views of ancient pagans is that they are evidence that people's immediate perceptions seem to show the earth is flat.

There's more detail in those views (that's similar in all their models) than can be attributed to naive naked-eye observations.

It only has Biblical roots if you don't understand allegory and you are trying to distort Scripture.

You are spreading false information in suggesting that Scripture is allegorical as if the literal sense does not take precedence. 
Scripture must always be interpreted in the literal unless proven otherwise.  Globe earth has not been proven.  And the Fathers who taught about the form of the earth, taught flat earth.
Providenssimus Deus says:
A wide field is still left open to the private student, in which his hermeneutical skill may display itself with signal effect and to the advantage of the Church. On the one hand, in those passages of Holy Scripture which have not as yet received a certain and definitive interpretation, such labors may, in the benignant providence of God, prepare for and bring to maturity the judgment of the Church; on the other, in passages already defined, the private student may do work equally valuable, either by setting them forth more clearly to the flock and more skillfully to scholars, or by defending them more powerfully from hostile attack.


 The Holy Fathers “to whom, after the Apostles, the Church owes its growth — who have planted, watered, built, governed, and cherished it,”³⁹ the Holy Fathers, We say, are of supreme authority, whenever they all interpret in one and the same manner any text of the Bible, as pertaining to the doctrine of faith or morals; for their unanimity clearly evinces that such interpretation has come down from the Apostles as a matter of Catholic faith. The opinion of the Fathers is also of very great weight when they treat of these matters in their capacity of doctors, unofficially; not only because they excel in their knowledge of revealed doctrine and in their acquaintance with many things which are useful in understanding the apostolic Books, but because they are men of eminent sanctity and of ardent zeal for the truth, on whom God has bestowed a more ample measure of His light. Wherefore the expositor should make it his duty to follow their footsteps with all reverence, and to use their labors with intelligent appreciation.

 But he must not on that account consider that it is forbidden, when just cause exists, to push inquiry and exposition beyond what the Fathers have done; provided he carefully observes the rule so wisely laid down by St. Augustine — not to depart from the literal and obvious sense, except only where reason makes it untenable or necessity requires