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Gochteodinia virgula
Gochteodinia virgula Davey, 1982
Holotype: Davey, 1982, pl. 6, figs. 2,7,10
Locus typicus: Haldager No.1 Borehole, Denmark
Stratum typicum: Portlandian
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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.
Gochteodinia virgula Davey, 1982b. Diagnosis in part, from Davey (1982b). Apical horn small and rounded. Wall thick and densely intraperforate, giving it a spongy appearance. The processes are smooth. Paracingulum and parasulcus sometimes discernible by lack of processes. Processes basically short but of variable length and typically branched, terminating distally in a small or large bifurcation, or more rarely are simple. Archeopyle formed from loss of 2-3 anterior intercalary plates. G.virgula differs from G.villosa in its thicker, intraperforate wall and the consistent presence of short bifurcating processes. Size: body length 54-60 µm, width 30-44 µm, process length 6-18 µm.
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Original diagnosis: Davey, 1982, p. 23
Shape: Ovoidal to elongate-ovoidal with minor dorso-ventral ventral flattening. Apical horn small and rounded, antapical horns absent.
Wall: Apparently two-layered with the layers being closely appressed except where the periphragm alone forms the processes. The wall is thick and densely intraperforate so having a spongy appearance. The processes are smooth.
Paratabulation: The paracingulum and parasulcus are sometimes discernible by a lack of processes.
Processes: Basically short but of variable length and are typically branched (terminating distally in a small or large bifurcation) or, more rarely, are simple.
Archaeopyle: Large and appears to be formed by the displacement of 2-3 anterior intercalary paraplates (2-3I).
Original description: Davey, 1982, p. 25
The distinctive, relatively thick wall is approximately 2 µm thick.
Holotype: Davey, 1982, pl. 6, figs. 2,7,10
Locus typicus: Haldager No.1 Borehole, Denmark
Stratum typicum: Portlandian
--------------------------------------------------
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Gochteodinia virgula Davey, 1982b. Diagnosis in part, from Davey (1982b). Apical horn small and rounded. Wall thick and densely intraperforate, giving it a spongy appearance. The processes are smooth. Paracingulum and parasulcus sometimes discernible by lack of processes. Processes basically short but of variable length and typically branched, terminating distally in a small or large bifurcation, or more rarely are simple. Archeopyle formed from loss of 2-3 anterior intercalary plates. G.virgula differs from G.villosa in its thicker, intraperforate wall and the consistent presence of short bifurcating processes. Size: body length 54-60 µm, width 30-44 µm, process length 6-18 µm.
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Original diagnosis: Davey, 1982, p. 23
Shape: Ovoidal to elongate-ovoidal with minor dorso-ventral ventral flattening. Apical horn small and rounded, antapical horns absent.
Wall: Apparently two-layered with the layers being closely appressed except where the periphragm alone forms the processes. The wall is thick and densely intraperforate so having a spongy appearance. The processes are smooth.
Paratabulation: The paracingulum and parasulcus are sometimes discernible by a lack of processes.
Processes: Basically short but of variable length and are typically branched (terminating distally in a small or large bifurcation) or, more rarely, are simple.
Archaeopyle: Large and appears to be formed by the displacement of 2-3 anterior intercalary paraplates (2-3I).
Original description: Davey, 1982, p. 25
The distinctive, relatively thick wall is approximately 2 µm thick.