original description
(of ) Williamson, W.C. (1858). On the recent Foraminifera of Great Britain. <em>The Ray Society, London.</em> 1-107., available online at https://archive.org/details/onrecentforamini00will/page/n0
page(s): p. 32, pl. 3, figs. 68, 69 [details] 
context source (Deepsea)
Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS), available online at http://www.iobis.org/ [details]
basis of record
Gross, O. (2001). Foraminifera, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 60-75 (look up in IMIS) [details]
additional source
Asioli, A. (1995). Living (stained) benthic Foraminifera distribution in the western Ross Sea (Antarctica). <em>Paleopelagos.</em> 5: 201-214. [details]
new combination reference
Cushman, J. A. (1939). A monograph of the foraminiferal Family Nonionidae. <em>United States Geological Survey Professional Papers.</em> 191: 1-123., available online at http://pubs.usgs.gov/pp/0191/report.pdf [details] Available for editors 
From editor or global species database