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DINOPHYSIOID TABULATION TYPE:
A
tabulation type in which the
plates, usually numbering eighteen or nineteen, are arranged in four
latitudinal series: the
apical plates (A1-A3), the
epithecal plates (E1-E4), the
cingular plates (C1-C4) and the
hypothecal plates (H1-H4). The
theca is fundamentally divisible into two lateral halves, these halves being separated by a serrated
sagittal suture, which is probably
homologous with the
fission suture in taxa with a
gonyaulacoid-peridinioid tabulation type. See also
dinophysoid corticotype. Refer to Text-Figure 9E.
DINOFLAJ (c) 1998