Back
Wanneria misolensis
Wanneria misolensis Below, 1987
Originally (and now) Wanneria, subsequently Belowius (generic name illegitimate)
Holotype: Below, 1987, pl.2, fig.2-10
Locus typicus: Isle of Jillu, 3 km S of Misol, Moluccas, Indonesia
Stratum typicum: Norian
Translation Below, 1987: Geological Survey of Canada
Original description: Below, 1987, p. 80-86.
Diagnosis: Prognosticated arrangement of vesicles/plates on the dinoflagellate amphiesma cop, pop, cap, 5", 3a-4a, 7"", 7c, 5"""-6""", 2"""", ns.
Cystic habit proximochorate, spheroidal, size large; wall composed of smooth pedium with only finate luxuria; arcades divide the surface into areae; the arcades are cloven lengthwise distally so that each area is surrounded by its own arcade ring, which is smooth or tumid distally or bears spinules. The spinules form double rows, with the tips of each row pointing towards the adjacent area; when the pillars of the arcades stand close together or the arcades are low, they fuse to from septa; there is only one row of spines on each side of the archaeopyle suture; inner surface polygonally areate, smooth, with the fines in the form of grooves; areation multiserial, multiareate; areation formula n4, n3, n2, n1, nc, n1, n2, n3, n4, sas, pas, rs, ls, pps, sps; areae individually variable in shape and number, ca. 45-90 small tetragonal to octagonal areae distributed as follows: apical quartanterior series n4 (1-2)* (* numbers exemplified in the present material), multiareate tertanterior n3 (2-6)*, secanterior n2 (6-9)*, primanterior n1 (10-13)*, multiareate cingulum c(9-15)*, multiareate primposterior n1 (10-15)*, secposterior n2 (6-12)*, tertposterior n3 (1-8)*, and antapical quartposterior series n4 (1-3)* as well as intercalary areae in variable positions; cingulum equatorial, cingulum and area series helicoid laevorotatory and displaced at the sulcus, beginning with small 1c; sulcus subdivided into sas, pas, rs, ls, pps, and sps; archaeopyle anterior to the primanterior series, tn4 + tn3 + tn2, operculum foederate, secate, opercular formula (tn4 + tn3 + tn2)s.
Dimensions: Holotype: length (without operculum) 39 µm, breadth 45 µm, thickness 45 µm.
Remarks: The number and shape of the areae are especially variable (see p. 73: fig. 39-47; table 2). The extent of the spines on the arcades is variable; partial reduction of the arcs leads to rows of bifurcate spines.
Originally (and now) Wanneria, subsequently Belowius (generic name illegitimate)
Holotype: Below, 1987, pl.2, fig.2-10
Locus typicus: Isle of Jillu, 3 km S of Misol, Moluccas, Indonesia
Stratum typicum: Norian
Translation Below, 1987: Geological Survey of Canada
Original description: Below, 1987, p. 80-86.
Diagnosis: Prognosticated arrangement of vesicles/plates on the dinoflagellate amphiesma cop, pop, cap, 5", 3a-4a, 7"", 7c, 5"""-6""", 2"""", ns.
Cystic habit proximochorate, spheroidal, size large; wall composed of smooth pedium with only finate luxuria; arcades divide the surface into areae; the arcades are cloven lengthwise distally so that each area is surrounded by its own arcade ring, which is smooth or tumid distally or bears spinules. The spinules form double rows, with the tips of each row pointing towards the adjacent area; when the pillars of the arcades stand close together or the arcades are low, they fuse to from septa; there is only one row of spines on each side of the archaeopyle suture; inner surface polygonally areate, smooth, with the fines in the form of grooves; areation multiserial, multiareate; areation formula n4, n3, n2, n1, nc, n1, n2, n3, n4, sas, pas, rs, ls, pps, sps; areae individually variable in shape and number, ca. 45-90 small tetragonal to octagonal areae distributed as follows: apical quartanterior series n4 (1-2)* (* numbers exemplified in the present material), multiareate tertanterior n3 (2-6)*, secanterior n2 (6-9)*, primanterior n1 (10-13)*, multiareate cingulum c(9-15)*, multiareate primposterior n1 (10-15)*, secposterior n2 (6-12)*, tertposterior n3 (1-8)*, and antapical quartposterior series n4 (1-3)* as well as intercalary areae in variable positions; cingulum equatorial, cingulum and area series helicoid laevorotatory and displaced at the sulcus, beginning with small 1c; sulcus subdivided into sas, pas, rs, ls, pps, and sps; archaeopyle anterior to the primanterior series, tn4 + tn3 + tn2, operculum foederate, secate, opercular formula (tn4 + tn3 + tn2)s.
Dimensions: Holotype: length (without operculum) 39 µm, breadth 45 µm, thickness 45 µm.
Remarks: The number and shape of the areae are especially variable (see p. 73: fig. 39-47; table 2). The extent of the spines on the arcades is variable; partial reduction of the arcs leads to rows of bifurcate spines.