- Stylosphaera lanceolaParona, 1890, p.150, pl.1, fig.19 - Sphaerostylus lanceola(Parona) Renz, 1974, p.795, pl.2, figs.13-14 ?, 15, 16 ?; pl.9, fig.19; (non form ancestral to Sphaerostylus lanceola Parona, Riedel and Sanfilippo, 1974, pl.12, fig.1 and Foreman, 1978b, p.743, pl. 1, fig. 11); Riedel and Sanfilippo, 1974, p.780, pl.1, figs.1-3; pars Muzavor, 1977, p.50, pl.1, fig.6; non fig.7; Foreman, 1978b, p.743, pl.1, fig.10; Nakaseko et al., 1979, p.23, pl.2, figs.1, 2; pl.3, fig.10; pl.1, fig.1, non fig. 2; Okamura and Uto, 1982, pl.4, figs.9, 10; pl.7, fig.15; pl.8, figs.2a-b; Yao, 1984, pl.4, fig.19; Sanfilippo and Riedel, 1985, p.588, text-figs.4. 4a-b, 4c, 4d, 4e; Aita and Okada, 1986, p.120, pl.1, figs.2, 3; Vishnevskaya, 1988, pl.6, figs.2, 3; Iwata and Tajika, 1989, pl.4, fig.7; Kato and Iwata, 1989, pl.1, fig.10; Tumanda, 1989, p.35, pl.1, fig.1; O'Dogherty and Martinez-Gallego, 1990, pl.1, fig.4 - Sphaerostylus lanceola group(Parona) Foreman, 1973b, p.258, pl.1, figs.7-11; Foreman, 1975, p.609, pl.2E, figs.3-6; Foreman, 1978b, p.743, pl.1, fig.10; Schaaf, 1981b, p.438, pl.7, fig.6; pl.16, figs.5a-b; Okamura and Matsugi, 1986, pl.4, figs.3-5, 7 - Pantanellium lanceola(Parona) De Wever (in De Wever and Thiebault), 1981, p.589, pl.2, fig.9; Origlia-Devos, 1983, p.51, pl.3, fig.10; non fig.9 (= D. rara?); Schaaf, 1984, p.114, text-figs. H (= holotype refigured), 1 (= specimen of Schaaf, 1981b, pl.7, fig.6), 2-3, 4a-b (= specimens of Schaaf, 1981b, pl.16, figs. 5b-a), 5a-b; p.152-153, text-figs. 13, 14; Thürow, 1988a, p.403, pl.9, fig.14; Aguado et al., text-fig.7.9; Ozvoldova and Peterkacova, 1992, pl.1, figs.7, 12; Steiger, 1992, p.25, pl.1, figs.1, 2; Taketani and Kanie, 1992, text-figs.3.6-7; Aguado et al., 1993, pl.3, fig.2; Vishnevskaya, 1993, pl.8, fig.3 - Xiphostylus FelsinaeNeviani, 1900, p.649, pl.9, fig.7 - Xiphosphaera ManzoniPantanelli, Neviani, 1900, p.648, pl.9, fig.5 - Stylosphaera Squinaboli Tan Sin Hok, 1927, p.35, pl.6, figs. 9a-d - Pantanellium squinaboli(Tan Sin Hok) Nakaseko and Nishimura, 1981, p.156, pl.1, figs.1,10 (= specimens of Nakaseko et al., 1979, pl.2, figs.1, 2); Vishnevskaya, 1988, pl.5, fig.7; Vishnevskaya, 1993, pl.3, fig.4; Jud, 1994, p.90, pl.15, figs.10-12 - Pantanellium squinaboli squinaboli(Tan Sin Hok) Baumgartner, 1992, p.322, pl.8, figs.2, 3 - Pantanellium squinaboli cantuchapai(Pessagno and MacLeod) Baumgartner, 1992, p.322, pl.8, fig.1 - Stylatractus ovatusHinde, 1900, p.19, pl.4, figs.29, 31-33, 36; Moore, 1973, p.823, pl.2, fig.1 - Protoxiphotractus (?) fischeriPessagno, 1973a, p.81, pl.9, fig.1; Pessagno, 1977b, p.78, pl.6, figs.3-4; ? Okamura, 1980, pl.19, figs. 1,6 - Pantanellium riedeliPessagno, 1977b, p.78, pl.6, figs.5-10; Pessagno, 1977c, p.33, pl.3, fig.12; Wu and Li, 1982, p.66, pl.1, fig.7; Li, 1986, pl.2, fig.22 - Pantanellium corriganensisPessagno, 1977c, p.33, pl.3, figs.5, 6; Okamura, 1980, pl.20, figs.1, 7; Origlia-Devos, 1983, p.49, pl.3, figs.5-7; Steiger, 1992, p.26, pl.1, figs.5, 6 - Pantanellium globulosumSteiger, 1992, p.26, pl.1, figs.7, 8 - Pantanellium nodaculeatumSteiger, 1992, p.25, pl.1, figs.3, 4 - ? Stylosphaera resistens Rüst, 1885b, p.291, pl.28, fig.15 - ? Stylosphaera f. indtParona, 1890, p.150, pl.1, fig.19 - ? Stylatractus ParonaeHinde, 1900, p.18, pl.4, fig.34 - ? Stylatractus tenerHinde, 1900, p. 18, pl.4, fig.35

Revised description and dimensions:Test as with genus, with elliptical to subspherical cortical shell and two primary spines aligned longitudinally. Meshwork comprised of very large hexagonal and pentagonal pore frame having developed nodes at vertices. Bars of pore frames relatively thick. Primary spines are strongly bladed.       (based on 12 specimens) Diameter of cortical shell 80-95µm, length of longest spine 100-130µm. Remarks:P. lanceola shows a wide range of variability throughout its stratigraphic range. Variation among members of this group is commonly expressed by variation in overall size, density of pores on surface of cortical shell, and length of primary spines. P. lanceola is distinguished from D. rara by having fewer but larger polygonal pore frames with raised nodes at pore frame vertices. It differs from P. ventosus in having a cortical shell with less numerous pore frames, and bigger nodes with more relief. In addition P. ventosus generally possesses shorter primary rays. Stratigraphic range:P. lanceola is the only species of Pantanellium found in the Aptian and represents the terminal species of this genus. Etymology:[No information given] Subsequent descriptions:?

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