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Deflandrea denticulata
Deflandrea denticulata Alberti, 1959
Holotype: Alberti, 1959, fig.1
Locus typicus: Altmark, Germany
Stratum typicum: Paleocene-Early Eocene
Translation Alberti, 1959: LPP
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G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Deflandrea denticulata Alberti, 1959b, is really a Cerodinium. The London Clay specimens are generally smaller and show tabulation from the arrangement of the small acuminate or blunt processes that occasionally delimit the plate boundaries. The small processes are often longer on the prominent apical and antapical horns and are not restricted to the plate boundaries. They have a tendency to be orientated in linear complexes running in an anterior-posterior direction. Size:type material, length 119-156 µm, width 77-90 µm. London Clay, pericyst length 72-126.5 µm, width 43-74 µm, endocyst length 37-64 µm, width 38-61 µm, apical horn length 20-39 µm.
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Original description: Alberti, 1959, p. 102
Shell flattened, elongete pentagonal in outline. Epithek acute to right angled triangle, extended to a long apikal horn. Hypothek slightly smaller than epithek, reverse trapezoidal with two long, often tapered, barely deverging antapical horns. Transverse furrow narrow, +/- strongly indented. Always with a large, delicate, inner body. Margin of shell finely denticulate. Apical horn and Antapical horns covered by short spines.
Holotype: Alberti, 1959, fig.1
Locus typicus: Altmark, Germany
Stratum typicum: Paleocene-Early Eocene
Translation Alberti, 1959: LPP
--------------------------------------------------
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Deflandrea denticulata Alberti, 1959b, is really a Cerodinium. The London Clay specimens are generally smaller and show tabulation from the arrangement of the small acuminate or blunt processes that occasionally delimit the plate boundaries. The small processes are often longer on the prominent apical and antapical horns and are not restricted to the plate boundaries. They have a tendency to be orientated in linear complexes running in an anterior-posterior direction. Size:type material, length 119-156 µm, width 77-90 µm. London Clay, pericyst length 72-126.5 µm, width 43-74 µm, endocyst length 37-64 µm, width 38-61 µm, apical horn length 20-39 µm.
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Original description: Alberti, 1959, p. 102
Shell flattened, elongete pentagonal in outline. Epithek acute to right angled triangle, extended to a long apikal horn. Hypothek slightly smaller than epithek, reverse trapezoidal with two long, often tapered, barely deverging antapical horns. Transverse furrow narrow, +/- strongly indented. Always with a large, delicate, inner body. Margin of shell finely denticulate. Apical horn and Antapical horns covered by short spines.