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|Title: ||Distribution of Recent Benthic Foraminifera off the Pacific Coast of Mexico and Central America|
|Authors: ||Culver, Stephen J.|
Buzas, Martin A.
|Issue Date: ||10-Sep-1987|
|Citation: ||Smithsonian Contributions to the Marine Sciences; 30|
|Abstract: ||A computer file of all published distributional data (presence or absence) on the recent, living and dead benthic foraminifera off the Mexican and Central American Pacific coast was constructed from 21 papers published since 1896. Manipulation of this file produced 5 catalogs and 115 maps.
Catalog 1 lists alphabetically species names with publication and locality information as recorded in the literature (i.e., unsynonymized). Catalog 2 lists synonymized species names with publication and locality information. Catalogs 3 and 4 list alphabetically all unsynonymized and synonymized species names, respectively. Catalog 5 lists synonymized names by increasing latitude and longitude.
Over the past 90 years, 447 names have been used to record benthic foraminifera in the study area. Through synonymization, this number was reduced to 377, of which 114 occur at 5 or more of the 119 sample localities. Computer-generated maps were drawn for the 114 most commonly recorded species.
Species were grouped by depth and geographic (latitudinal) distribution through visual examination of the maps. Thirty-two species are restricted to depths of less than 200 m, 22 occur mainly at depths of less than 2000 m, 22 at depths of greater than 200 m, 5 at depths of greater than 2000 m, 11 are found between 200 and 2000 m, and 22 are ubiquitous with depth.
Latitudinally, the species are grouped into three categories. Sixty-six species are latitudinally ubiquitous in the study area, 47 species are found only to the south of Puerto Angel (16 degrees N) and one species is found only north of Puerto Angel. Although the majority of species are ubiquitous, a faunal break is probably indicated by the species restricted to the south of Puerto Angel.|
|Description: ||Files listed include high and low resolution reproductions.|
|Appears in Collections:||Smithsonian Contributions to the Marine Sciences|
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