Caron (1985):
The species differs from the slightly larger H. delrioensis in
having only 4 instead of 5-6 globular chambers forming the
last whorl.
Pflaumann & Krasheninnikov (1977):
The last whorl is composed of four to four and one-half chambers
with lobate periphery and narrow .umbilicus.
Differs from other hedbergellas by its low number of chambers in
the last whorl, from C. hoterivica by its low main aperture, and from
Gubkinella by its low spira.
On Plate 1, Figure 3, 4 are shown four-chambered forms of larger
sizes, determined as H. aff. sigali with respect of their poor
preservation. |
Moullade,M. (1966):
Etude stratigraphique et micropaléontologique du Crétacé inférieur de la "fosse vocontienne" . Documents des Laboratoires de Géologie de la Faculté des Sciences de Lyon Vol. 15 p. 1-369
Pflaumann,U. and Krasheninnikov,V.. (1977):
Early Cretaceous planktonic foraminifers from eastern North Atlantic, DSDP Leg 41 .
In: Initial Reports of the Deep Sea Drilling Project 41 , Abidjan, Ivory Coast, to Malaga, Spain, February-April 1975 Eds: Gardner, J..Herring, J.. p. 539-564
Caron,M. (1985):
Cretaceous planktic foraminifera.
In: Plankton stratigraphy Eds: Bolli, H.M.Saunders, J.B.Perch-Nielsen, K. p. 17–86
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