A note on the distribution of selected groups of upper cretaceous forminiferida and their value as environmental indicators

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Title: A note on the distribution of selected groups of upper cretaceous forminiferida and their value as environmental indicators
Author(s): McGee, David C.
Advisor(s): Webster, Gary
Date: 1966
Semester: Fall 1966
Type: Senior Thesis
Extent: 11 pages
Abstract: A comparison of the faunal characteristics of two foraminifera Assemblages from the Rosario Formation in 9aja California sugQests the following general criteria wnich may prove to be useful in the intorpretation of Upper Cretaceous paleoenvironments: 1) specific group􀁘 of arenAceous foraminifers characterize relatively deAp-water assemblages, 2) arenaceous foraminifer9 constitute the greatest percentage of tests in relatively deep-wnter assemblages, 3) specimens of Bulimina are not abundant in relatively shallow-wate􀂕 assemblages, and 4) jttached foraminifers are most abundant in relatively shallow-w􀂥ter faunas. Sixty species and subspecies of benthonic fornminifera sre recorded from the two faunules; only six worR common to both faunules.
Language: en_US
Discipline: Geological Sciences
College: Sciences
Institution: San Diego State University
Degree: Bachelor of Science (B.S.) San Diego State University, 1966
Identifier: http://hdl.handle.net/20.500.11929/sdsu:30195