WoRMS taxon details
original description
Huang, T. Y., 1965, Asanonella shojii n. gen., n. sp. (Fam. Discorbidae) from Tokunoshima, Kagoshima Prefecture, Japan, Transactions and Proceedings of the Palaeontological Society of Japan, n. ser. 60:166-171. , available online at https://www.jstage.jst.go.jp/article/prpsj1951/1965/60/1965_60_166/_pdf page(s): p. 167 [details] Available for editors [request]
additional source
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 to inequally biconvex, trochospiral, all of the two and a half whorls visible, rapidly enlarging chambers appearing semilunate on the spiral side, tubular projections are developed around the major fields of coarse perforations in earlier chambers, sutures strongly oblique and slightly depressed, chambers subtriangular on the umbilical side, sutures radial and slightly depressed, umbilicus closed, periphery subacute; wall calcareous, optically radial, coarsely perforate in a band near the periphery on both spiral and umbilical sides of the final chamber, with later growth a crenulate ridge is added around the band of coarse perforations on the spiral side of earlier chambers, becoming progressively more elevated with lamellar additions and forming short wide cylinders within which the pores gradually are filled, the cylindrical structures of earlier whorls resembling a large elevated pore at the midpoint of each chamber, coarse perforations present only on the final chamber on the umbilical side, where they continue to the previous intercameral suture, those of earlier chambers secondarily filled; aperture an elongate interiomarginal and extraumbilical slit, partially filled with a toothlike protrusion of transparent shell material arising from the previous spiral wall. Pliocene to Holocene; Taiwan; S. China Sea; tropical Pacific; Indian Ocean; Timor Sea: Sahul Shelf off Northwest Australia; Caribbean: off Venezuela. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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