Published:January 01, 1959
It is not the purpose of the writer to provide a complete synonomy for the species listed in the systematic discussion which follows. Rather, the synonomy is complete for described species of West Coast Tertiary and is fairly representative of most of the American Tertiary foraminiferal literature. Identification of specimens was accomplished when possible by comparison with primary or secondary types or topotypical material. Types were consulted at the following repositories of type material: University of California Museum of Paleontology, Berkeley, California; Stanford University; California Academy of Sciences, San Francisco; University of Texas, Austin; Louisiana State University, Baton Rouge; United States National Museum, Washington, D.C.; Rutgers University, New Brunswick, New Jersey; Columbia University, New York City; Paleontological Research Institute and Cornell University, Ithaca, New York; Walker Museum, Chicago; Indiana University, Bloomington; University of Washington, Department of Geology, Seattle; University of Oregon, Eugene.
Holotype, paratype, and hypotype specimens listed in the pages to follow have been deposited in the Micropaleontology Museum, Department of Paleontology, University of California, Berkeley. In addition, paratypes and hypotypes of the species are on deposit in the Museum of Paleontology, Department of Geology, University of Washington, Seattle. Many paratypes of species have been deposited in the collections of the United States National Museum, Washington, D.C.
The systematic arrangement of the family grouping largely follows that of Cushman (1940b), but has been slightly modified following Glaessner (1947) and the author’s own convictions regarding the relationships of certain groups. The “Heterohelicidae” have mostly been included with the Buliminidae, as
Figures & Tables
Lower Tertiary Biostratigraphy of the California Coast Ranges
As a result of field work carried on in 1947 a sequence of foraminiferal samples were collected in 2,300 feet of Lower Tertiary mudstones, siltstones, and interbedded shales and sandstones in the vicinity of Media Agua Creek, in the Temblor Range on the west side of the San Joaquin Valley.
Foraminiferal samples from another less comprehensive sequence of Lower Tertiary strata were collected during the years 1947, 1948, and 1949 in the region of Devils Den.
The prepared samples were studied during the years 1947–1952 in the Department of Paleontology at the University of California under the direction of Dr. Robert M. Kleinpell. Subsequent work both in the field and laboratory has been directed toward obtaining as complete and chronologically diagnostic a faunal sequence throughout the Lower Tertiary in the California province as possible.
Preliminary results of certain phases of the investigation have been presented from time to time at meetings of the Pacific Section of the American Association of Petroleum Geologists, San Joaquin Valley Geological Society, Cordilleran Section of the Geological Society of America, and the Northwest Geological Society (Mallory and Boyd, 1949; Mallory, 1953a, 1953b, 1954a, 1954b). This paper attempts a synthesis and revision of these reports and their conclusions, and the incorporation of many new data.
The majority of species known to be important in the Paleogene foraminiferal faunas are figured and their stratigraphic distribution in the California province is noted. In addition, an attempt has been made to draw any inferences from all kinds of fossil