 Hornibrook et al. 1989, Fig. 12.26: 0.12 mm |
Reference: Hornibrook, Brazier & Strong 1989, p.54, Fig. 12:26.
Synonymy: 1933, Contr. Cush. Lab. Foram. Res. 9: 37, pl. 4, fig. 12.
1966, Webb: 274, pl. 14, fig. 3.
Description: Small; triserial; chambers globular, rather loosely joined, and increasing rapidly in size.
Distribution: Upper Haumurian.
Comment: The only Cretaceous planktic genus to survive well beyond the terminal Cretaceous extinction event, Guembelitria ranges into the Oligocene. In some very complete Cretaceous-Tertiary boundary sequences in northeastern Marlborough, G. cretacea occurs above the iridium-rich, Cretaceous-Tertiary "boundary clay".
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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