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Deflandrea foveolata
Deflandrea foveolata Wilson, 1984
Holotype: Wilson, 1984, fig. 2-4
Locus typicus: Takatika Creek, Chatham Island, New Zealand
Stratum typicum: Paleocene
Original description: Wilson, 19084, p.547
Cyst large, elongate, bicavate with fairly prominent apical horn and two equal antapical horns; all horns usually capped with a solid papilla. Periphragm thin, densely foveolate over most of surface; foveolae circular to polygonal, up to 6 µm diam.; small perforations usually occur in addition to foveolae, particularly near paracingular margins (Fig. 7 and 8). Endocyst smooth, relatively thick-walled, breadth greater than length, and usually in close contact with pericyst of central area prominent pericoels developed in apical and antapical regions. Archeopyle very broad, subhexagonal, Type I/I or occasionally Type 3I/3I; operculum free, endoperculum somewhat smaller than perioperculum. Paracingulum usually represented by low ridges or by lineations of either relatively deep foveolae or perforations. Paratabulation not welldefined although low solid ridges sometimes delimit polygonal areas. Parasulcus normally represented by narrow depression on ventral surface.
Dimensions: Holotype, overall length 189 µm, breadth 111 µm, length of endocyst 78 µm, breadth 89 µm. Range (20 specimens), overall length 157(165)189 µm, breadth 81(95)116 µm, maximum diameter of endocyst 73(87)108 µm.
Holotype: Wilson, 1984, fig. 2-4
Locus typicus: Takatika Creek, Chatham Island, New Zealand
Stratum typicum: Paleocene
Original description: Wilson, 19084, p.547
Cyst large, elongate, bicavate with fairly prominent apical horn and two equal antapical horns; all horns usually capped with a solid papilla. Periphragm thin, densely foveolate over most of surface; foveolae circular to polygonal, up to 6 µm diam.; small perforations usually occur in addition to foveolae, particularly near paracingular margins (Fig. 7 and 8). Endocyst smooth, relatively thick-walled, breadth greater than length, and usually in close contact with pericyst of central area prominent pericoels developed in apical and antapical regions. Archeopyle very broad, subhexagonal, Type I/I or occasionally Type 3I/3I; operculum free, endoperculum somewhat smaller than perioperculum. Paracingulum usually represented by low ridges or by lineations of either relatively deep foveolae or perforations. Paratabulation not welldefined although low solid ridges sometimes delimit polygonal areas. Parasulcus normally represented by narrow depression on ventral surface.
Dimensions: Holotype, overall length 189 µm, breadth 111 µm, length of endocyst 78 µm, breadth 89 µm. Range (20 specimens), overall length 157(165)189 µm, breadth 81(95)116 µm, maximum diameter of endocyst 73(87)108 µm.