Srinivasan (1975):
The SEM examination of the surface ultramicrostructure
of the type species of Protentella and that
of Clavatorella suggests a close generic relationship
(Srinivasan and Kennett, MS.). Further, the type species
of Protentella and Clavatorella are similar, the only difference between the two taxa being the degree of trochospiral coiling in later Stages. Clavatorella is, however, considered to be a subgenus of Protentella. |
Bolli,H.M. (1957):
Planktonic foraminifera from the Oligocene-Miocene Cipero and Lengua formations of Trinidad, B.W.I..
In: Studies in Foraminifery, Bulletin of the U.S. National Museum Vol. 215 Eds: Loeblich, A.R.Tappan, H.Beckmann, J.P.Bolli, H.M.Gallitelli, E.M.Troelsen, J.C. p. 97-123
Srinivasan,M.S. (1975):
Middle Miocene Planktonic Foraminifera from the Hut Bay Formation, Little Andaman Island, Bay of Bengal . Micropaleontology Vol. 21(2) p. 133-150
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