Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India
Author
Symphonia, Tabita K.
Author
Senthil, Nathan D.
text
Palaeontologia Electronica
2019
55 A
2019-09-30
22
3
1
89
http://dx.doi.org/10.26879/811
journal article
294848
10.26879/811
d1000324-a875-4ee8-805d-0f61ee41f4d7
1094-8074
10961656
Neorotalia calcar
(d’Orbigny, 1839a)
Figure 5.3-6
1839a
Calcarina calcar
d’Orbigny
, p. 81, pl. 5, figs. 22-24.
2012
Neorotalia calcar
(d’Orbigny)
; Debaney, pp. 204-205.
Description.
Test biconvex, wall calcareous, perforate, surface ornamented with distinct, round and thick pustules on the dorsal side, ridges and many umbilical knobs on the ventral side; chambers many, slightly inflated and coiling evolute on the spiral side, involute on the umbilical side, trochospirally arranged; periphery angular, star-shaped with stout spines, sutures tilted and slightly depressed on the spiral side, radial and depressed on the umbilical side; primary aperture umbilical, low-arched opening bordered by a lip, secondary apertures peripheral, bordered by a lip.