Professor Dr. Khadyzhat M. Saidova (1925–2022) devoted her scientific career to marine micropaleontology. Over seven decades, she had been gathering her micropaleontological collection, which is based on samples she mostly collected herself during cruises of the Soviet and then Russian research vessels. The collection is curated at Shirshov Institute of Oceanology comprising over 1 500 slides of picked specimens, and consists of two distinct parts. The geographical part contains specimens largely issued from bathyal and abyssal areas of the World Ocean, mainly Pacific and Indian Oceans. The taxonomic part contains representative specimens of at least 850 foraminiferal species including the holotypes of 30 new species incorporated to the Loeblich and Tappan classification, two of which are presented in this article: Alabaminella weddellensis profunda and Ioanella tumidula antarctica . Professor Saidova’s work was recognized internationally through the 2012 Cushman Award.