Trochammina abrupta Geroch, 1959
 
Class: Rotaliata  Subclass: Textulariana  Order: Lituolida  Family: Trochamminidae
 
found in a core of  ODP Leg 123 Site 765
Site 765
   off West Australia   off territorial waters
 
Geological Time: Cretaceous  Lower Cretaceous  Berriasian

the images are published under public domain in the below cited scientific report of the
 
 
View of a specimen of Trochammina abrupta Geroch, 1959
 
The identification is based upon:
 Kaminski, M.A., Gradstein, F.M., and Geroch, S., 1992: Uppermost Jurassic to Lower Cretaceous deep-water benthic foraminiferal assemblages from Site 765 on the Argo Abyssal Plain. Gradstein, F.M., Ludden, J.N., et al., Proc. ODP, Sci. Results, 123: College Station, TX (Ocean Drilling Program), 239–269.   Plate 5, Fig. 14
 
 
genus.php?no=1009005&aktion=suche
 
dataset number: FEU-1009005
 
 
Citation:
Kaminski, M.A., Gradstein, F.M., and Geroch, S., 1992: Uppermost Jurassic to Lower Cretaceous deep-water benthic foraminiferal assemblages from Site 765 on the Argo Abyssal Plain. Gradstein, F.M., Ludden, J.N., et al., Proc. ODP, Sci. Results, 123: College Station, TX (Ocean Drilling Program), 239–269. Plate 5, Fig 14