 Hornibrook et al. 1989, Fig. 29.6a-b: 0.65 mm |
Reference: Hornibrook, Brazier & Strong 1989, p.133, Fig. 29:6a-b.
Synonymy: 1982, N.Z. jl. geol. geophys. 25: 95, fig. 7a-g;
1982, Scott, Ibid. 25: 481-482, fig. 2A, D; fig. 4, F. J. L.;
1983, Scott, Marine micropaleont. 7: 378-379, pl. 1, fig. 1-3;
1984, Hornibrook, Palaeogeog. palaeoclimat. palaeoecol. 46(1-3): 107-117, fig. 1,2.
Description: Distinguished by the unusually strongly embracing chambers on the ventral side together with the very low, arched aperture, relatively compressed gently biconvex shape and a hispid keel. Four to four and a half chambers in final whorl, much more depressed than the planoconical G. mons..
Distribution: Uppermost Kapitean (G. sphericomiozea-zone) to Opoitian.
Comment: Appears earliest within the range-zone of G. sphericomiozea in DSDP Site 284 coiling predominantly dextrally and becomes dominantly sinistral near the FAD of G. puncticulata. Mainly an index for Opoitian.
Cite this publication as: "Strong CP, Raine JI, Terezow M. 2018. Key
species of New Zealand fossil foraminifera: descriptions from "Manual of New
Zealand Permian to Pleistocene Foraminiferal Biostratigraphy" by Hornibrook,
Brazier and Strong, 1989. Lower Hutt (NZ): GNS Science. (GNS Science
miscellaneous series; 123)."
ISSN 1172-2886, ISBN 978-1-98-853088-8,
DOI 10.21420/G2M63W.
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