Foraminifera taxon details
original description
Henson, F. R. S. (1948). Larger imperforate foraminifera of south-western Asia. Families Lituolidae, Orbitolinidae and Meandropsinidae. <em>British Museum (Natural History).</em> 1-127. page(s): p. 95 [details] Available for editors [request]
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 Microspheric test globular to lenticular in the early stage, discoidal in the adult and up to 3.5 mm in diameter, early stage of about six planispiral and involute whorls, the last with over twenty chambers, chambers becoming progressively longer and strongly overlapping the preceding chambers until they become cyclical, chamber interior with central filling in the lower part, leaving open a narrow preseptal space occupied by pillars, increasing from a single pillar in the earliest chambers to many pillars confined to the equatorial plane, secondary partitions parallel to and perpendicular to the septa form small chamberlets; megalospheric test lenticular, up to 2.3 mm in diameter, proloculus followed by flexostyle and then by about seven whorls of up to seven chambers each; wall calcareous, imperforate, porceianeous; aperture consists of numerous pores in the final chamber face, corresponding in position to the chamberlets. U. Cretaceous (Cenomanian to Maastrichtian); Qatar; Kuwait; Tunisia; Lebanon; Iraq; Israel; Italy; Portugal; Yugoslavia; Greece. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
| |