Figure 22.7 1798 Nautilus planatus Fichtel and Moll, p. 91, pl. 16, figs. a-c, i; p. 93, pl. 16, figs. d-f; p. 94, pl. 16, figs. g, h. 2006 Peneroplis planatus (Fichtel and Moll); Oflaz, p. 186, pl. 5, figs. 4 - 5, pl. 11, fig. 9. 2008 Peneroplis planatus (Fichtel and Moll); Yalçin, Meriç, Avşar, Tetiker, Barut, Yilmaz, and Dinçer, p. 370, pl. 3, figs. 11 - 16. 2012 Peneroplis planatus (Fichtel and Moll); Debenay, p. 114. Description. Test flattened, wall calcareous, surface ornamented with numerous grooves placed at right angles to the sutures, umbilical region depressed, devoid of ornamentation; chambers distinct, coiling involute and planispiral chamber arrangement initially, final whorl spreading out later, rapidly increasing in size as added; sutures somewhat depressed; aperture a row of irregular, circular openings.
Sumber: Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India