 Hornibrook et al. 1989, Fig. 12.19a-b: 0.23 mm |
Reference: Hornibrook, Brazier & Strong 1989, p.54, Fig. 12:19a-b.
Synonymy: 1960, Globorotalia monmouthensis, Jour. Paleont. 34(1): 47, pl. 9, fig. 22-24;
1966, Webb: 276, pl. 14, fig. 4.
Description: Trochospiral; tiny, very low spired; 4½ to 5 globular chambers per whorl; finely perforate; well preserved specimens may have short spines on early chambers of final whorl.
Distribution: Upper Haumurian.
Comment: One of few planktic species to briefly survive beyond the terminal Cretaceous event, H. monmouthensis has been recovered up to 30 cm above the iridium-rich Cretaceous-Tertiary boundary clay in northeastern Marlborough.
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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