''Rotorboides'' is a genus of recent (Holocene) bottom dwelling (benthic) forams from the Atlantic, Pacific and Indian Oceans, related to '' Rosalina''. The test is trochospiral and planoconvex, with a broadly rounded periphery and about six to nine chambers in the final whorl. Sutures on the spiral side are crescentic and strongly oblique. Chambers on the umbilical side are subtriangular, each with a triangular folium, or flap, that extends into the umbilical area, folia of successive chambers fuse to form an umbilical plate that is solid or has only rare perforations. Sutures on the umbilical side are radial and deeply incised. The test wall is calcareous, coarsely perforate on the spiral side, but imperforate adjacent to the sutures. The umbilical side is imperforate and smooth. The aperture is an interiomarginal arch, outside the umbilicus, extending nearly to the periphery.

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Alfred R. Loeblich Jr Alfred R. Loeblich Jr (1914–1994) was an American micropaleontologist. He was married to Helen Niña Tappan Loeblich and the two co-authored a number of important works on the Foraminifera and related organisms. Biography Alfred R. Loeblich Jr ...

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Helen Tappan Helen may refer to: People * Helen of Troy, in Greek mythology, the most beautiful woman in the world * Helen (actress) (born 1938), Indian actress * Helen (given name), a given name (including a list of people with the name) Places * Helen, G ...

, 1988. Forminiferal Genera and their classification. Geological Survey of Iran, (e-book) 2005

{{Taxonbar, from=Q7370591 Rosalinidae Rotaliida genera