Contribution to the paleontology of the CampanianNeogene benthic foraminiferal Textulariid and Lagenid genera and species

Abstract

Vaginulinoides and Vaginulinella two new genera, both of Anan (this study) are introduced here to include the two benthic Lagenid Foraminiferids from Chile, in the Southern Tethys, that characterized by its planispirally enrolled and involute early stage, and later uncoiled of the test, with ornamented surface. The first one Vaginulinoides has the same characters of the Vaginulinopsis with curved test, but differs in its longitudinal ribs along the surface test. This genus is represented by Marginulina cubana Palmer, in Finger1 (2013, Plate 10, Figure. 10, non Figure. 9) which related here to the new genus Vaginulinoides. The second new genus Vaginulinella also has the same characters of the genus Vaginulinoides but with erect rectilinear test, which represented here by Dentalina obliquecostata (Stache) in Finger1 (Plate 6, Figure. 21) and treated here to belong to the new genus Vaginulinella. On the other hand, another three new members of the diagnostic calcareous benthic agglutinated foraminiferal genus Pseudogaudryinella Cushman were erected from many localities in the world: Pseudogaudryinella baliniaki (North Europe, Poland), South Europe, P. ortizae (Spain), and Pseudogaudryinella iraqensis (Middle East, Iraq), beside the type locality of this genus P. capitosa, which was erected earlier from USA by Cushman. These Tethyan taxa, most probably indicate an open marine environment of Chile (South America), USA (North America), Europe and Southwest Asia, which represents middle-outer neritic environment (100 m ~ 200 m depth), and shows an affinity with Midway-Type Fauna (MTF) of the United States Gulf Coastal area.