[1][2] D. zuberi was a common species in the coeval vegetation of the Sydney and Lorne Basins of New South Wales.

Specimens have been found near Wairaki Hut and indicate that this species may have been as common in Scytho-Anisian vegetation of coastal New Zealand.

[1] The stomatal frequency on both sides of the frond were similar, with irregularly oriented stomata evenly distributed over the entire surface of the leaves.

[1] D. zuberi is found in the southern hemisphere, from Australia, South Africa, India, and Argentina.

This combination was suggested by Sergio Archangelsky due to the lack of differences in size, shape, and venation of pinnules.