Jenkins (1985):
G. conomiozea has an asymmetrical test with a flat spiral and a high umbilical side which gives it a conical shape. It is distinguished from G. sphericomiozea, which is smaller and has a thicker walled test and from G. conoidea, which also has a much thicker walled test (Jenkins, 1971). The evolutionary relationship of G. conomiozea to G. puncliculata at DSDP Leg 29 Site 284 was discussed by MaImgren & Kennett (1981). G. conomiozea has a short stratigraphic range in the Late Miocene in New Zealand but it appears to range into the Early Pliocene at DSDP Leg 29 Site 284, while at Leg 40 Sites 360 and 362 it is restricted to the Late Miocene (Jenkins, 1975, 1978c). |
Kennett,J.P. (1966): The Globorotalia crassaformis bioseries in north Westland, and Marlborough, New Zealand . Micropaleontology Vol. 12 p. 235-245
Jenkins,D.G. (1985): Southern mid-latitude Paleocene to Holocene planktic foraminifera. In: Plankton stratigraphy Eds: Bolli, H.M.Saunders, J.B.Perch-Nielsen, K. p. 263-282
Berggren,W.A.; Kent,D.V.; Swisher,C.C. and Aubry,M.P. (1995): A revised Cenozoic Geochronology and Chronostratigraphy. In: Geochronology Time Scales and Global Stratigraphic Correlation, SEPM Special Publication Vol. 54
|