@article{Foraminifera:SourceID:383451, author = {Tipton, A. and R. M. Kleinpell and D. W. Weaver.}, journal = {University of California Publications in Geological Sciences 105: 1-83}, title = {Oligocene biostratigraphy, San Joaquin Valley, California}, url = {https://marinespecies.org/foraminifera/aphia.php?p=sourcedetails&id=383451}, year = {1973} }