Geological Time: Quaternary Holocene recent
the image is published under
CC BY-NO-SA in the World Foraminifera Database
View of a specimen of Ammonia confertitesta Zheng, 1978
two specimens
The identification is based upon:
Hayward, B.W., Holzmann, M., Grenfell, H.R., Pawlowski, J., Triggs, C.M., 2004: