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Coniferatium
From Fensome et al., 2019:
"Coniferatium", Burgess, 1971, p.80–81.
Taxonomic senior synonym: Apteodinium, according Stover and Evitt (1978, p.141–142).
Type: Burgess, 1971, pl.1, fig.9, as Coniferatium frontierense.
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Original description: [Burgess, 1971]:
Diagnosis:
Outline, rounded polygonal with a well-defined helical girdle. The archaeoyple is precingular; tabulation is not evident. There is a well defined ventral longitudinal furrow. The capsule is covered by a fine reticulum that is coarse in the apical and antapical areas and within the girdle furrow. Separation of the inner capsule and the outer wall can be seen in the apical and antapical areas.
Description:
Test dorsoventrally flattened, rounded polygonal in outline. A prominent girdle divides the epitheca from the hypotheca. The sculpture consists of a fine to coarse reticulum, being coarsest in the apical, antapical, and girdle areas. The outer reticulate wall is in contact with the capsule except at the poles. Precingular archeopyle is always present as a triangular- to arch-shaped opening. The epitheca terminates in a rounded knob.like reticulate mass of spongy tissue.
Affinities:
Coniferatium differs from Scrinodinium in the absence of a well defined inner capsule separated from the outer wall, the absence of any tabulation, and reticulate ornamentation. It differs from Peridinium in having a precingular rather than an intercalary archaeopyle.
"Coniferatium", Burgess, 1971, p.80–81.
Taxonomic senior synonym: Apteodinium, according Stover and Evitt (1978, p.141–142).
Type: Burgess, 1971, pl.1, fig.9, as Coniferatium frontierense.
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description: [Burgess, 1971]:
Diagnosis:
Outline, rounded polygonal with a well-defined helical girdle. The archaeoyple is precingular; tabulation is not evident. There is a well defined ventral longitudinal furrow. The capsule is covered by a fine reticulum that is coarse in the apical and antapical areas and within the girdle furrow. Separation of the inner capsule and the outer wall can be seen in the apical and antapical areas.
Description:
Test dorsoventrally flattened, rounded polygonal in outline. A prominent girdle divides the epitheca from the hypotheca. The sculpture consists of a fine to coarse reticulum, being coarsest in the apical, antapical, and girdle areas. The outer reticulate wall is in contact with the capsule except at the poles. Precingular archeopyle is always present as a triangular- to arch-shaped opening. The epitheca terminates in a rounded knob.like reticulate mass of spongy tissue.
Affinities:
Coniferatium differs from Scrinodinium in the absence of a well defined inner capsule separated from the outer wall, the absence of any tabulation, and reticulate ornamentation. It differs from Peridinium in having a precingular rather than an intercalary archaeopyle.