Recent Foraminifera from the southern coast of Puerto Rico

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dc.contributor.advisorMaddocks, Rosalie F.
dc.contributor.committeeMemberButler, John C.
dc.contributor.committeeMemberBryant, Edwin H.
dc.creatorBrooks, Warren W.
dc.date.accessioned2022-07-07T20:01:53Z
dc.date.available2022-07-07T20:01:53Z
dc.date.issued1971
dc.description.abstractThe narrow continental shelf along the southern coast of Puerto Rico is rich in a wide variety of tropical environments. Foraminiferal assemblages of the area reflect the patterns of species associations, controlled by the ecology and distribution of species in the Caribbean- Antilles province. The collections of Recent Foraminifera in the study area from 36 sediment samples consist of 144 species belonging to 72 genera, of which 131 species are benthonic and 13 species are planktonic. Amphistegina gibbosa, Arehaias angulatus, Quinqueloculina seminulum, and Discorbis rosea comprise over 50 percent of the total foraminiferal population, and 53 species comprise less than one percent. Three species are new: Quinqueloculina macelloconcha, Triloculina pyramidiforma, and Lenticulina kaczkae. A systematic study of all species of Foraminifera is included in this report. An analysis of cluster patterns was determined based on Jaccard coefficients of association using presence/absence data. Six biotopes and eight biofacies were determined using cluster analysis. The environmental parameters controlling the biotopes are salinity variations and wave agitation in the nearshore area, sediment distribution and wave agitation on the shallow shelf, and cool temperatures and moderately quiet waters on the outer shelf platform. The biofacies patterns do not correspond to the assemblages that characterize the biotopes. Comparison of the patterns of distribution of Recent Foraminifera from the study area with Recent distributions in other areas of the Caribbean- Antilles region reflect the basic similarity of the faunal assemblages.
dc.description.departmentEarth and Atmospheric Sciences, Department of
dc.format.digitalOriginreformatted digital
dc.format.mimetypeapplication/pdf
dc.identifier.other17594854
dc.identifier.urihttps://hdl.handle.net/10657/10387
dc.language.isoen
dc.rightsThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.
dc.subjectPuerto Rico
dc.titleRecent Foraminifera from the southern coast of Puerto Rico
dc.type.dcmiText
dc.type.genreThesis
thesis.degree.collegeCollege of Arts and Sciences
thesis.degree.departmentGeology, Department of
thesis.degree.disciplineGeology
thesis.degree.grantorUniversity of Houston
thesis.degree.levelMasters
thesis.degree.nameMaster of Science

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