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Hebecysta brevicornuta
Hebecysta brevicornuta Bujak and Fisher, 1976
Holotypus: Bujak and Fisher, 1976, pl.9, fig.11
Locus typicus: Sandy Point L-46, core 2525-2535'; Queen Elizabeth Islands, arctic Canada
Stratum typicum: Norian
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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.
Hebecysta brevicornuta Bujak and Fisher, 1976, is a double-walled cyst with oval to subpolygonal to subrhomboidal endocyst. Pericyst smooth or granular, forming small distinct rounded horn. Antapical horn absent. Low, narrow crests delineate slightly laevorotatory cingulum and sometimes also present on rest of cyst, particularly on the epicyst where they indicate partial tabulation. Archeopyle formed by loss or displacement of two or three anterior intercalary plates.
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Originaldiagnose: Bujak and Fisher, 1976, p.64
Double-walled cysts, endophragm oval, subpolygonal, or subrhomboidal in outline. Periphragm smooth or granular, forming small, distinct, rounded apical horn. Antapical horns absent. Low, narrow crests delimiting slightly laevo-rotary cingulum and sometimes also present on remainder of cyst, particularly on epitract where they occasionally have partial tabular arrangement. Archeopyle formed by loss or displacement of two or three anterior intercalary plates.
Dimensions: Holotype, length 53 µm, breadth 47 µm. Observed range, length 51-60 µm, breadth 46-50 µm.
Holotypus: Bujak and Fisher, 1976, pl.9, fig.11
Locus typicus: Sandy Point L-46, core 2525-2535'; Queen Elizabeth Islands, arctic Canada
Stratum typicum: Norian
--------------------------------------------------
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Hebecysta brevicornuta Bujak and Fisher, 1976, is a double-walled cyst with oval to subpolygonal to subrhomboidal endocyst. Pericyst smooth or granular, forming small distinct rounded horn. Antapical horn absent. Low, narrow crests delineate slightly laevorotatory cingulum and sometimes also present on rest of cyst, particularly on the epicyst where they indicate partial tabulation. Archeopyle formed by loss or displacement of two or three anterior intercalary plates.
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Originaldiagnose: Bujak and Fisher, 1976, p.64
Double-walled cysts, endophragm oval, subpolygonal, or subrhomboidal in outline. Periphragm smooth or granular, forming small, distinct, rounded apical horn. Antapical horns absent. Low, narrow crests delimiting slightly laevo-rotary cingulum and sometimes also present on remainder of cyst, particularly on epitract where they occasionally have partial tabular arrangement. Archeopyle formed by loss or displacement of two or three anterior intercalary plates.
Dimensions: Holotype, length 53 µm, breadth 47 µm. Observed range, length 51-60 µm, breadth 46-50 µm.