Trilobatus sacculifer (Brady, 1877)
 
Class: Rotaliata  Subclass: Globigerinana  Order: Globigerinida  Family: Globigerinidae
 
found in a core of  ODP Leg 130 Site 806
Site 806
   Micronesia + Philippine Basin   Micronesia (FSM)
 
Geological Time: Neogene  Miocene  Aquitanian

the images are published under public domain in the below cited scientific report of the
 
 
View of a specimen of Trilobatus sacculifer (Brady, 1877)

exact size see reference, about 500µm +/- 250µm
 
The identification is based upon:
 Chaisson, W.P., and Leckie, R.M., 1993: High-resolution Neogene planktonic foraminifer biostratigraphy of Site 806, Ontong Java Plateau (western equatorial Pacific). Berger, W.H., Kroenke, L.W., Mayer, L.A., et al., Proc. ODP, Sci. Results, 130: College Station, TX (Ocean Drilling Program), 137−178.   Plate 2, Fig. 16
 
 
genus.php?no=1009486&aktion=suche
 
dataset number: FEU-1009486
 
 
Citation:
Chaisson, W.P., and Leckie, R.M., 1993: High-resolution Neogene planktonic foraminifer biostratigraphy of Site 806, Ontong Java Plateau (western equatorial Pacific). Berger, W.H., Kroenke, L.W., Mayer, L.A., et al., Proc. ODP, Sci. Results, 130: College Station, TX (Ocean Drilling Program), 137−178. Plate 2, Fig 16