. Bulletins of American paleontology. 0 30 60 90 120 150 180 210 240 270 300 330 Number of specimens per locality 4U « 30 20 ⢠* ⢠* * ⢠⦠10 0 r 0 50 100 150 200 250 300 350 Number of specimens per locality Text-figure 3.âHistograms and scatterplot showing the numbers of species and specimens collected per locality. , McCune and Mefford, 1995; Text-fig. 5B). The first curve (Text-fig. 5A) levels off in a series of stepped plateaus. The steps appear to correspond with reef trends and are best developed for localities within the three younger trends. This result indicates that the speci


. Bulletins of American paleontology. 0 30 60 90 120 150 180 210 240 270 300 330 Number of specimens per locality 4U « 30 20 ⢠* ⢠* * ⢠⦠10 0 r 0 50 100 150 200 250 300 350 Number of specimens per locality Text-figure 3.âHistograms and scatterplot showing the numbers of species and specimens collected per locality. , McCune and Mefford, 1995; Text-fig. 5B). The first curve (Text-fig. 5A) levels off in a series of stepped plateaus. The steps appear to correspond with reef trends and are best developed for localities within the three younger trends. This result indicates that the species that lived within each reef trend are more or less adequately sampled. On the other hand, the second curve (Text-fig. 58) levels off at between 10 to 15 localities, again indicating that the sampled localities adequately estimate species richness. Of the 82 identified species, 49 are living, and 33 are extinct (Table 4). The 49 living species represent of the 60 hermatypic species in the Caribbean today (Budd et 1994a). Among the Hving species 0 â 5 a. (0 "St Z Q. OU ' 40' n r 30' â 11 20' ~"~ 11 10' n . â 1â BS QC BA EM LM C 400 <D E o ® o. (0 200 â¢s 3^ 8 xa o b ^ 0 3 ^. BS QC BA EM LM Text-figure 4,âMaxima, medians, and minima of numbers of spe- cies and specimens collected per locality within each of five reef trends. The trends are arranged in chronological order from oldest (left) to youngest (right). BS, Brazo Seco patch; QC, Quebrada Chocolate trends; BA, Buenos Aires trend; EM, Empalme trend (in- cludmg Santa Rosa patch); LM, Lomas del Mar trend. are all of the species that dominate modem Caribbean shallow and deep reef communities (Goreau, 1959; Goreau and Wells, 1967), including Acropora palma- ta. A. cervicornis, Undaria agaricites ( = tenuifolia), Agaricia lamarcki, Siderastrea siderea. Pontes astreo- ides, P. fiircata. Diploria strigosa, members of the Montastraea annularis complex, and Colpophyllia na- tans. Also in


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