. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history; Natuurlijke historie; Sociale geschiedenis; Culturele antropologie. 144 ANNALS OF THE SOUTH AFRICAN MUSEUM suggesting somewhat less stable physical conditions. 5a is, therefore, considered to be a transitional environment between the moderate depths of field 4 and areas below the 'Bythocypris' line with which it is linked via assemblage 5b. A mid-outer shelf (7200-300 m) environment is suggested. The concept of field 5 (a and b) as transitional between 4 and 6 and 7 is strengthened by plotting the in
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history; Natuurlijke historie; Sociale geschiedenis; Culturele antropologie. 144 ANNALS OF THE SOUTH AFRICAN MUSEUM suggesting somewhat less stable physical conditions. 5a is, therefore, considered to be a transitional environment between the moderate depths of field 4 and areas below the 'Bythocypris' line with which it is linked via assemblage 5b. A mid-outer shelf (7200-300 m) environment is suggested. The concept of field 5 (a and b) as transitional between 4 and 6 and 7 is strengthened by plotting the incidence of species turnover in the CCBC diagram (Fig. 69F). Levels of high turnover, with disappearances predominating, cluster close to the corridor between the 'Bairdoppilata' and 'Cytherella' lines (and also, incidentally, in field 4a). This suggests that certain sedimentary environ- ments (such as 4a and 5) were not conducive to stimulating phylogenetic development (appearances), whereas others (notably 4b) might have been more : 26 A «12^ B 4=5=£2l. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
