 Hornibrook et al. 1989, Fig. 19.1 (Topotype): 1.34 mm |
Reference: Hornibrook, Brazier & Strong 1989, p.100, Fig. 19:1 (Topotype).
Synonymy: 1864, Polymorphina pernaeformis, Novara-Exped. geol. 1(2): 256, pl. 24, fig. 2a, b;
1971, Sigmomorphina pernaeformis, Hornibrook, N.Z. Geol. Surv. paleont. bull. 43: 47, 48, pl. 10, fig. 176, 177.
Description: Distinguished from Polymorphina lingulata by its broad, distinctly spirally twisted test with alternating overlapping chambers.
Distribution: Porangan to Whaingaroan.
Comment: Also S. obesa Hornibrook, 1961 (Runangan to Duntroonian); S. lornensis Hornibrook, 1961 (Kaiatan - Runangan).
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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