 Hornibrook et al. 1989, Fig. 30.3a-f: 0.36-0.43 mm |
Reference: Hornibrook, Brazier & Strong 1989, p.134, Fig. 30:3a-f.
Synonymy: 1981, G. puncticulata puncticuloides, N.Z. jl. geol. geophys. 24(2): 274-276, fig. 7-9v-dd;
1982, Ibid. 25: 85-95.
Description: Populations are variable and include a range of individuals, some with compressed margins, others more inflated with broadly rounded margins like G. puncticulata. Last whorl typically has four chambers, and is distinctly umbilicate, with a finely hispid surface. Aperture a high lipped arch. Sutures are gently recurved on ventral side, more strongly recurved on spiral side. Distinguished from typical G. puncticulata populations by greater marginal compression, and a more strongly lipped aperture. Distinguished from accompanying G. inflata populations by the smaller, more compressed, regularly 4 chambered test.
Distribution: Upper Waipipian? Mangapanian to Nukumaruan in North Island. Common in the early Pliocene off the southern part of the South Island.
Comment: Often occurs together with the cold water mollusc, Chlamys delicatula.
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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