Ammonia beccarii neotype and topotypes

Description:

Hayward, B.W.; Holzmann, M.; Tsuchiya, M. 2019. Combined molecular and morphological taxonomy of the beccarii/T3 group of the foraminiferal genus Ammonia. Journal of Foraminiferal Research 49: 367-389. Supplementary figure 2. Neotype and seven topotypes of A. beccarii photographed with a Leica M205C binocular. Topotypes 1 to 3 represent juvenile forms, topotypes 4 and 5 represent submature adult forms, topotypes 6 to 7 and the neotype (8) are adult growth forms. Specimens are deposited in the Natural History Museum in London. 1a-8a: View of the umbilical side. 1b-8b: View of the spiral side. 8c: side view of the neotype, showing aperture of the penultimate chamber. 8d: Spiral side view of the neotype showing sutures. 8e: Spiral side view of the neotype showing proloculus.