Foraminifera taxon details
original description
Brönnimann, P.; Brown, N. K. (1953). Observations on some planktonic Heterohelicidae from the Upper Cretaceous of Cuba. <em>Contribution from the Cushman Foundation for foraminiferal research.</em> 4(4): 150-156. page(s): p. 150 [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]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Diagnosis Test subtriangular in outline, microspheric early stage may have tiny planispiral coil, remainder of test biserial, chambers somewhat inflated, sutures depressed; wall calcareous, low, and somewhat oblique imperforate longitudinal costae parallel the test periphery, intercostal surface perforate; aperture an interiomarginal arch, with secondary sutural apertures along the median zigzag suture between pairs of chambers, partially covered by very finely perforate tubular to flaring flaplike projections and may be bordered by a distinct imperforate lip. U. Cretaceous (Maastrichtian); cosmopolitan. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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