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Valvaeodinium armatum var. armatum
From Fensome et al., 2019:
Valvaeodinium armatum var. armatum
Autonym. Now redundant.
Holotype: Morgenroth, 1970, pl.11, fig.1-2
Paratypes: Morgenroth, 1970
Locus typicus: Stichkanal Hildesheim, E of Luehnde, N Germany
Stratum typicum: Late Pliensbachian
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Translation Below, 1987: Bureau of Translation, Secretary of State Canada, 1988, Part II, p. 185-187
Original description: Morgenroth 1970, p. 350-351
Diagnosis: test biconical, epitract and hypotract almost equal in size. Reflected tabulation 4", 2a, 5"", ?5c or ?6c, 5""", 0p, 1"""". Surface of test granular. Plate margins marked by very low thin crests, without spines. Numerous thin fibrous spines, which may be hollow at their base arise from the plates. Distal end of spines capitate or ?bifurcate. Cingulum slightly laevorotatory. Sulcus not subdivided, narrowing towards the antapex. Archaeopyle intercalary (Archaeopyle Type 2I).
Dimensions: holotype: length of test 36 Ám, breadth of test 32 Ám, legth of spines 5-9 Ám. Range (14 specimens): length 28(32)36 Ám, breadth 25(29)33 Ám, spines 3(5)9 Ám.
Description: The test (wall ¦ 1 Ám thick) has an almost biconical shape. The apex is obtusely pointed, without an apical horn. The sides of the epitract and the hypotract are practically straight in outline on most of the specimens. The antapex is flattened. Four reflected apical plates are present. Plate 1" is elongate and occupies the anterior prolongation of the sulcus. In front of 1" lies the minute plate 3" (length ¦ 3Ám). The ?pentagonal plates 2" and 4" are symmetrically arranged on both sides of 1" and 3". They seem to be almost equal in size. Symmetrically above 3", two anterior intercalary plates are reflected. They are mirror images and seem to be pentagonal. On specimens with an archaeopyle developed, both anterior intercalary plates are discarded. The five precingular plates are pentagonal. the laevo-rotatory cingulum is only slightly intruding; its two ends which broaden considerably towards the sulcus differ in antero-posterior position by 1/2-1 cingulum width. The five postcingular plates are all of similar size. the single antapical plate is hexagonal in shape. The sulcus is narrow in its anterior portion, broadening at its contact with the cingulum and becoming narrow again towards the antapex.
Valvaeodinium armatum var. armatum
Autonym. Now redundant.
Holotype: Morgenroth, 1970, pl.11, fig.1-2
Paratypes: Morgenroth, 1970
Locus typicus: Stichkanal Hildesheim, E of Luehnde, N Germany
Stratum typicum: Late Pliensbachian
---------------------------------------------------------------------------------------------------
Translation Below, 1987: Bureau of Translation, Secretary of State Canada, 1988, Part II, p. 185-187
Original description: Morgenroth 1970, p. 350-351
Diagnosis: test biconical, epitract and hypotract almost equal in size. Reflected tabulation 4", 2a, 5"", ?5c or ?6c, 5""", 0p, 1"""". Surface of test granular. Plate margins marked by very low thin crests, without spines. Numerous thin fibrous spines, which may be hollow at their base arise from the plates. Distal end of spines capitate or ?bifurcate. Cingulum slightly laevorotatory. Sulcus not subdivided, narrowing towards the antapex. Archaeopyle intercalary (Archaeopyle Type 2I).
Dimensions: holotype: length of test 36 Ám, breadth of test 32 Ám, legth of spines 5-9 Ám. Range (14 specimens): length 28(32)36 Ám, breadth 25(29)33 Ám, spines 3(5)9 Ám.
Description: The test (wall ¦ 1 Ám thick) has an almost biconical shape. The apex is obtusely pointed, without an apical horn. The sides of the epitract and the hypotract are practically straight in outline on most of the specimens. The antapex is flattened. Four reflected apical plates are present. Plate 1" is elongate and occupies the anterior prolongation of the sulcus. In front of 1" lies the minute plate 3" (length ¦ 3Ám). The ?pentagonal plates 2" and 4" are symmetrically arranged on both sides of 1" and 3". They seem to be almost equal in size. Symmetrically above 3", two anterior intercalary plates are reflected. They are mirror images and seem to be pentagonal. On specimens with an archaeopyle developed, both anterior intercalary plates are discarded. The five precingular plates are pentagonal. the laevo-rotatory cingulum is only slightly intruding; its two ends which broaden considerably towards the sulcus differ in antero-posterior position by 1/2-1 cingulum width. The five postcingular plates are all of similar size. the single antapical plate is hexagonal in shape. The sulcus is narrow in its anterior portion, broadening at its contact with the cingulum and becoming narrow again towards the antapex.