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Oodnadattia
From Williams et al., 2017:
[Oodnadattia, Cookson and Eisenack, 1960, p. 6
Tax. sr. syn. of Xiphophoridium Sarjeant, 1966, according to Below, 1981. Lentin and Williams, 1981, retained Xiphophoridium as a separate genus.
Type species: Oodnadattia tuberculata, Eisenack and Cookson, 1960 (pl.2, fig.10)]
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Original description: [Eisenack and Cookson, 1960]:
Description:
Shell broader than long, apical and antapical surface convex, circular to broadly oval in outline with an embayment made by longitudinal furrow. Transverse furrow circular, narrow, bordered by two broad membraneous wings; longitudinal furrow winged especially in the hypotheca. The plates of the epitheca and hypotheca are bordered by low ledges and separated by radially arranged retangular intermediate plates.
Affinities:
The genus Oodnadattia is distinct from Dinoryterigum Deflandre 1935 in the absence of high ledges and the presence of intermediate plates in both epitheca and hypotheca.
[Oodnadattia, Cookson and Eisenack, 1960, p. 6
Tax. sr. syn. of Xiphophoridium Sarjeant, 1966, according to Below, 1981. Lentin and Williams, 1981, retained Xiphophoridium as a separate genus.
Type species: Oodnadattia tuberculata, Eisenack and Cookson, 1960 (pl.2, fig.10)]
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Original description: [Eisenack and Cookson, 1960]:
Description:
Shell broader than long, apical and antapical surface convex, circular to broadly oval in outline with an embayment made by longitudinal furrow. Transverse furrow circular, narrow, bordered by two broad membraneous wings; longitudinal furrow winged especially in the hypotheca. The plates of the epitheca and hypotheca are bordered by low ledges and separated by radially arranged retangular intermediate plates.
Affinities:
The genus Oodnadattia is distinct from Dinoryterigum Deflandre 1935 in the absence of high ledges and the presence of intermediate plates in both epitheca and hypotheca.