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Wanaea fimbriata
From Fensome et al., 2019:
Wanaea fimbriata Sarjeant, 1961
Holotype: Sarjeant, 1961, pl.15, fig.14; text-fig.13
Locus typicus: Oxford Clay, Cayton Bay, High Red Cliff, England
Stratum typicum: Early Oxfordian
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Sarjeant, 1961, p. 112-113
Diagnosis: A species of Wanaea, with a shell broadly cone-shaped, narrowing to a short, rounded apex. The edge is ornamented to four-fifths of its length by a fringe, relatively broad but narrowing towards the gap; this fringe is in the form of a small-meshed network of irregular structure, its edges free.
Remarks: Fringe network extremely variable in character; in some cases two adjacent processes anastomose only twice in their length, in others, they do so four times. Mesh fragile and frequently torn; it is not rigid, its surface frequently being undulose.
Dimensions: Holotype: height of shell: c. 65 µm; diameter of base: 100 µm; fringe up to 20 µm broad. The other specimens vary little from these dimensions.
Fensome, 1982, p. 55
Synopsis of diagnosis: A species of Wanaea with a hemispherical to rounded conical hypotract, with an antapical horn. the characteristically broad cingular flange (about one sixth the overall cingular diameter wide) comprises a lacelike reticulum, but has a ragged periphery, as the flange is never entire distally.
Affinities:
Fensome, 1981, p. 55
The flange of W. fimbriata is broad as in W. clathrata, but its reticulation tends not to be as complex and is distally ragged.
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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.
Wanaea fimbriata Sarjeant, 1961a. Wanaea fimbriata has a broad, paracingular fringe, which forms a small-meshed network of irregular structure with an irregular margin. Compare this with Wanaea thysanota with a very broad perforate fringe that is broken into processes distally. Size: holotype, height 65 µm, diameter 100 µm, fringe width up to 20 µm.
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Wanaea fimbriata Sarjeant, 1961
Holotype: Sarjeant, 1961, pl.15, fig.14; text-fig.13
Locus typicus: Oxford Clay, Cayton Bay, High Red Cliff, England
Stratum typicum: Early Oxfordian
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Sarjeant, 1961, p. 112-113
Diagnosis: A species of Wanaea, with a shell broadly cone-shaped, narrowing to a short, rounded apex. The edge is ornamented to four-fifths of its length by a fringe, relatively broad but narrowing towards the gap; this fringe is in the form of a small-meshed network of irregular structure, its edges free.
Remarks: Fringe network extremely variable in character; in some cases two adjacent processes anastomose only twice in their length, in others, they do so four times. Mesh fragile and frequently torn; it is not rigid, its surface frequently being undulose.
Dimensions: Holotype: height of shell: c. 65 µm; diameter of base: 100 µm; fringe up to 20 µm broad. The other specimens vary little from these dimensions.
Fensome, 1982, p. 55
Synopsis of diagnosis: A species of Wanaea with a hemispherical to rounded conical hypotract, with an antapical horn. the characteristically broad cingular flange (about one sixth the overall cingular diameter wide) comprises a lacelike reticulum, but has a ragged periphery, as the flange is never entire distally.
Affinities:
Fensome, 1981, p. 55
The flange of W. fimbriata is broad as in W. clathrata, but its reticulation tends not to be as complex and is distally ragged.
--------------------------------------------------
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Wanaea fimbriata Sarjeant, 1961a. Wanaea fimbriata has a broad, paracingular fringe, which forms a small-meshed network of irregular structure with an irregular margin. Compare this with Wanaea thysanota with a very broad perforate fringe that is broken into processes distally. Size: holotype, height 65 µm, diameter 100 µm, fringe width up to 20 µm.
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