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Wanaea acollaris
From Fensome et al., 2019:
Wanaea acollaris Dodekova, 1975, p.20–21, pl.2, figs.9–10; pl.3, figs.1–7,9; text-fig.2. Emendation: Riding and Helby, 2001b, p.37.
Originally (and now) Wanaea, subsequently Energlynia. Sarjeant, 1978, transferred the species to Energlynia Sarjeant, 1976. Dodekova, 1990, retained it in Wanaea.
Tax. sr. synonym of Wanaea indotata Drugg, 1978, according to Woollam, 1980, and Riley and Fenton, 1982.
Tax. sr. synonym of Wanaea zoharensis Conway, 1978, according to Fensome, 1981.
Tax. sr. synonym of Energlynia kyrbasia Sarjeant, 1976, according to Fenton and Fisher, 1978, and Fensome, 1981.
Holotype: Dodekova, 1975, pl.3, figs.1-4
Locus typicus: NE Bulgaria
Stratum typicum: Late Bathonian
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Original description: Dodekova, 1975, p. 20
Broad-conic proximo-chorate cyst. In the present description the conception of Evitt (1967) for the orientation of the cyst is accepted, based on the known models for the origin of the archaeopyle. The obscure traces of tabulation in the new species confirm this orientation. The epitract is flat and rounded, short and occupies 1/5 or 1/6 of the cyst length. Reminds of a peculiar lid of the large and well formed hypotract. On the epitract occur several (4 or 5) apical and ? intercalary plates, as well as 5 or 6 precingular plates. The hypotract is an overturned cone with broad base which terminates in distinct antapical horn. Tbe cingulum is located in the broadest part of Ihe cone, narrow and obscure. In some specimens a slight concavity with weak or absent ornamentation is established only on the hypatract which probably marks the place of the sulcus. On the hypotract 5 or 6 postcingular plates and one antapical plate are observed. The existent fossil material did not enable a specification of the reflected tabulation to be made but a combined schematic model is shown in textfig. 2. The ornamentation of the membrane is represented by different in dimension granules and spines. They are best developed in the area of the cingulum and on the sutures where they reach a length of 4.65 µm. Neighbouring spines may joininthe proximal or distal ends. The archaeopyle is epitractal.
Affinities:
Dodekova, 1975, p. 21: The lack of cingular fringe distinguishes the new species from all known species of the genus.
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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 acollaris Dodekova, 1975. Dodekova (1975, p.21-22) described this species as having a narrow, obscure paracingulum and it does not possess a paracingular fringe. It has short interconnected spinules and granules forming the parasutural lines. According to Drugg (1978, p.74), there is also a rudimentary and fragmented paracingular fringe. Size: length 65-86 µm, width 67-100 µm, length of antapical horn 8-12 µm.
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Wanaea acollaris Dodekova, 1975, p.20–21, pl.2, figs.9–10; pl.3, figs.1–7,9; text-fig.2. Emendation: Riding and Helby, 2001b, p.37.
Originally (and now) Wanaea, subsequently Energlynia. Sarjeant, 1978, transferred the species to Energlynia Sarjeant, 1976. Dodekova, 1990, retained it in Wanaea.
Tax. sr. synonym of Wanaea indotata Drugg, 1978, according to Woollam, 1980, and Riley and Fenton, 1982.
Tax. sr. synonym of Wanaea zoharensis Conway, 1978, according to Fensome, 1981.
Tax. sr. synonym of Energlynia kyrbasia Sarjeant, 1976, according to Fenton and Fisher, 1978, and Fensome, 1981.
Holotype: Dodekova, 1975, pl.3, figs.1-4
Locus typicus: NE Bulgaria
Stratum typicum: Late Bathonian
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Original description: Dodekova, 1975, p. 20
Broad-conic proximo-chorate cyst. In the present description the conception of Evitt (1967) for the orientation of the cyst is accepted, based on the known models for the origin of the archaeopyle. The obscure traces of tabulation in the new species confirm this orientation. The epitract is flat and rounded, short and occupies 1/5 or 1/6 of the cyst length. Reminds of a peculiar lid of the large and well formed hypotract. On the epitract occur several (4 or 5) apical and ? intercalary plates, as well as 5 or 6 precingular plates. The hypotract is an overturned cone with broad base which terminates in distinct antapical horn. Tbe cingulum is located in the broadest part of Ihe cone, narrow and obscure. In some specimens a slight concavity with weak or absent ornamentation is established only on the hypatract which probably marks the place of the sulcus. On the hypotract 5 or 6 postcingular plates and one antapical plate are observed. The existent fossil material did not enable a specification of the reflected tabulation to be made but a combined schematic model is shown in textfig. 2. The ornamentation of the membrane is represented by different in dimension granules and spines. They are best developed in the area of the cingulum and on the sutures where they reach a length of 4.65 µm. Neighbouring spines may joininthe proximal or distal ends. The archaeopyle is epitractal.
Affinities:
Dodekova, 1975, p. 21: The lack of cingular fringe distinguishes the new species from all known species of the genus.
--------------------------------------------------
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Wanaea acollaris Dodekova, 1975. Dodekova (1975, p.21-22) described this species as having a narrow, obscure paracingulum and it does not possess a paracingular fringe. It has short interconnected spinules and granules forming the parasutural lines. According to Drugg (1978, p.74), there is also a rudimentary and fragmented paracingular fringe. Size: length 65-86 µm, width 67-100 µm, length of antapical horn 8-12 µm.
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