WoRMS taxon details
Nomenclatureoriginal description
Cushman, J. A.; Church, M. A. (1929). Some Upper Cretaceous Foraminifera from near Coalinga, California. <em>Proceedings of the California Academy of Sciences.</em> (4) 18 (16): 497-530. page(s): p. 502 [details] Available for editors [request]
original description
(of Silicosigmoilina (Bramletteia) Israelsky, 1951 †) Israelsky, M. C. (1951). Foraminifera of the Lodo Formation, central California; General introduction and part 1, Arenaceous Foraminifera. <em>United States Geological Survey Professional Papers.</em> 240-A: 1-29., available online at https://pubs.er.usgs.gov/publication/pp240A page(s): p. 10 [details] Available for editors [request]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Diagnosis Test ovoid in outline, proloculus followed by long narrow chambers a half coil in length, added slightly less than 180¡ apart, so that in transverse section the chambers form a sigmoid series; wall finely agglutinated, surface smoothly finished; aperture rounded to ovate, with a small simple tooth projecting from one margin. U. Cretaceous to Paleocene; cosmopolitan. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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