Asiel, go to the liked page below, enter your location if it does not automatically detect it, and the page will tell you where you might obtain a copy of the publication. (When I tested it, the nearest library to me was the University of Oxford, UK)

http://www.worldcat.org/title/calcareous-algae-from-the-cretaceous-and-tertiary-of-cuba/oclc/3326371

John

The previous knowledge of the conditions and species of that time helps to understand the present and future changes, modeling is a tool to use.

Dear Asiel, unfortunately I didn't help you, because I have poore knolage in Calcareous algae