WoRMS name details
original description
Hornibrook, N. deB. (1961). Tertiary Foraminifera from Oamaru District (N.Z). Part 1- Systematics and Distibution. <em>New Zealand Geological Survey Paleontological Bulletin.</em> 34: 1-194. page(s): p. 138 [details]
basis of record
Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at https://books.google.pt/books?id=n_BqCQAAQBAJ [details] Available for editors [request]
From editor or global species database
Diagnosis Test lenticular, trochospiral, strongly biconvex, chambers numerous, enlarging slowly as added, sutures oblique on the spiral side, radial on the umbilical side where sutural pores are well developed, sutures on umbilical side with numerous pustules, umbilical margin of chambers and surface pustules fused in the central area to form a prominent umbonal plug containing a network of anastomosing canals, periphery acute, with imperforate carina; wall calcareous, lamellar, finely perforate, surface ornamented with tubercles and granules that may coalesce as incipient spiralling ribs, spiral surface may have less well-developed ornamentation; apertural face smooth, with a row of small openings near its base, although the openings may be obscured. U. Eocene to M. Miocene; New Zealand; Australia. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
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