Trochammina abrupta Geroch, 1959       1   more

Class: Rotaliata  Subclass: Textulariana  Order: Trochamminida  Family: Trochamminidae

found in a core of ODP Leg 123 Site 765   off West Australia   off territorial waters   Site 765

Geological Time: Cretaceous  Lower Cretaceous  Berriasian


the images are published under public domain in the below cited scientific report of the IODP, ODP and DSDP

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