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Subspecies Planorotalites pusilla pusilla Bolli 1957


Discussion / Comments:
Toumarkine & Luterbacher (1985):
The small biconvex test are tightly coiled with 5 to 6 crescentic chambers in the last whorl increasing gradually in size. On the spiral side, the sutures are strongly curved backwards. The umbilicus is narrow. The surface of the test in well preserved specimens is coarsely perforate and pitted, but it may be smooth in abraded specimens.
Systematics:

15
 Classis Foraminifera
  Genus Planorotalites
   Species Hantkenina alabamensis
    Species Planorotalites pseudoscitula
Synonym list:
Toumarkine & Luterbacher (1985):
1957 Globorotalia pusilla pusilla Bolli. - Bolli : p.78 pl 20 figs 8-10 (type reference)
1985 Planorotalites pusilla pusilla Bolli. - Toumarkine & Luterbacher : p.107 figs. 12.13-14
Was used in synonym list of:
Igorina pusilla Bolli 1957
References:

Bolli,H.M. (1957):
The genera Globigerina and Globorotalia in the Paleocene-Lower Eocene Lizard Springs Formation of Trinidad, B.W.I . Bulletin of the U.S. National Museum Vol. 215 p. 61-82

Toumarkine,M. and Luterbacher,H.P. (1985):
Paleocene and Eocene Planktic Foraminifera.
In: Plankton Stratigraphy p. 87-154
Anonymous: Unedited TaxonConcept data
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