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Wetzeliella (Wetzeliella) echinosuturata
Wetzeliella (Wetzeliella) echinosuturata Wilson, 1967
Holotype: Wilson, 1967, figs. 22-24
Locus typicus: Waipawa, Hawkes Bay, New Zealand
Stratum typicum: Dannevirke Series mudstone, Porangan Stage, Middle Eocene
Original description: Wilson, 1967, p.477, 479
Periphragm surface punctate, outline pentagonal; sides more or less straight, rarely concave. Margin adorned with prominent capitate or oblate processes (1=3-10 µm). Right antapical horn invariably longer than left, although there is usually only a small difference. Ornament on periphragm comprised of very prominent ridges crested by oblate or capitate processes (l up to 16 µm). The ridges correspond to sutures and define a clear peridinioid tabulation (Fig. 3). Pericoel large. Capsule finely granular, usually more or less circular, occasionally sub-rhomboidal. Archeopyle when formed is rectangular and replaces 2a plate.
Dimensions: Holotype: l--149 µm, h= 143 µm, capsule 99 µm x 91 µm, Ap. horn 14 µm, l. ant. horn 11 µm, r. ant. horn 22 µm, lateral horns 16 µm. Range (7 specimens): l= 138(146)160 µm, h= 124(136)151 µm, capsule (1) 94 µm x 98 µm, ap. h. 9(13)16 µm, 1. ant. h. 8(11)15 µm, r. ant. h. 14(21)27 µm. Iat. h. 11(16)19 µm.
Affinities:
Wilson, 1967, p.479: This species is similar to W. (W.) tabulata in that the processes are located along the sutures between adjacent plates. Only one specimen with an archeopyle was found.
Holotype: Wilson, 1967, figs. 22-24
Locus typicus: Waipawa, Hawkes Bay, New Zealand
Stratum typicum: Dannevirke Series mudstone, Porangan Stage, Middle Eocene
Original description: Wilson, 1967, p.477, 479
Periphragm surface punctate, outline pentagonal; sides more or less straight, rarely concave. Margin adorned with prominent capitate or oblate processes (1=3-10 µm). Right antapical horn invariably longer than left, although there is usually only a small difference. Ornament on periphragm comprised of very prominent ridges crested by oblate or capitate processes (l up to 16 µm). The ridges correspond to sutures and define a clear peridinioid tabulation (Fig. 3). Pericoel large. Capsule finely granular, usually more or less circular, occasionally sub-rhomboidal. Archeopyle when formed is rectangular and replaces 2a plate.
Dimensions: Holotype: l--149 µm, h= 143 µm, capsule 99 µm x 91 µm, Ap. horn 14 µm, l. ant. horn 11 µm, r. ant. horn 22 µm, lateral horns 16 µm. Range (7 specimens): l= 138(146)160 µm, h= 124(136)151 µm, capsule (1) 94 µm x 98 µm, ap. h. 9(13)16 µm, 1. ant. h. 8(11)15 µm, r. ant. h. 14(21)27 µm. Iat. h. 11(16)19 µm.
Affinities:
Wilson, 1967, p.479: This species is similar to W. (W.) tabulata in that the processes are located along the sutures between adjacent plates. Only one specimen with an archeopyle was found.