Georgescu, M. D. (2014). Taxonomic revision and evolutionary classification of the biserial Cretaceous planktic foraminiferal genus Laeviheterohelix Nederbragt, 1991. Revista Mexicana De Ciencias Geológicas, 26(2). Retrieved from https://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/350