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Glaphyrocysta espiritosantensis
From Fensome et al., 2019:
Glaphyrocysta espiritosantensis (Regali et al., 1974, p.290, pl.24, fig.3) Arai in Fauconnier and Masure, 2004, p.246. Holotype: Regali et al., 1974, pl.24, fig.3; irretrievably damaged according to Arai in Fauconnier and Masure (2004, p.246). Lectotype: Fauconnier and Masure, 2004, pl.31, figs.1–3, designated by Arai in Fauconnier and Masure (2004, p.246). Originally Hystrichosphaeridium, subsequently Areoligera, thirdly (and now) Glaphyrocysta. Age:
Maastrichtian.
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Original description: [Regali et al., 1974] (translated from Portugese):
Hystrichosphaeridium espiritosantensis sp. n.
Est. XXIV, no. 3.
Derivation: Species name derived from the state of Espírito Santo, Brazil.
Diagnosis: Spherical central capsule, smooth or with small punctures. Short processes characteristically anastomosed in the medial part.
Holotype: Type slide no. 38 – Est. XXIV, no. 3.
Diameter: 100µ, including processes.
Type site: Well 1-SES-3 (Sergipe Submarine)
1950-1980 m.
Description: Spherical central capsule, 80 to 90 µ in diameter, smooth or with small punctures.
Processes numerous and short, or with small punctures. Numerous, short processes, 10 to 12 µ long, anastomose in their midsection, forming a smooth, thin membrane. Size ranges from 80 to 100 µ, including the processes.
Comparison: Differs from H. salvadorensis sp. n. and H. paraensis sp. n. by the anastomosis of the processes in their midsection.
Distribution: Tricornites elongatus Zone.
Age: Maestrichtian.
Occurrence: Continental shelf of Maranhão, Alagoas, and Sergipe, and the Sergipe/Alagoas, Almada, and Espírito Santo basins.
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Material. Specimen from well 1-RSS-3, ditch cutting sample
2,184.00–2,202.00 m, Pelotas Basin (Figure 5E).
Original description (in Portuguese and direct translation).
cápsula central esférica, com 80 a 90 μm de diâmetro, lisa ou com pequenas pontuações. Processos numerosos e curtos com pequenas pontuações, com 10 a 12 μm de comprimento, que se anastomosam em sua parte média, formando membrana lisa e fina [central body spherical, with 80–90 μm-diameter, wall smooth or finely punctate; processes numerous and short with fine punctuations and 10–12 μm-length, which anastomose in the middle part, forming a thin, smooth membrane]. New lectotype. Figure 5E (specimen from well 1-RSS-3, ditch cutting sample 2,184.00–2,202.00 m, Pelotas Basin). Slide MP-P 14613-3, England Finder N37/3.
Emended description. Cyst chorate, whose central body is lenticular with ambitus subcircular bilobate or rounded at antapex; central body wall composed by a reticulate autophragm bearing several arcuate penitabular complexes; midventral and mid-dorsal areas typically process-free; processes isolated or forming complexes joined to one another distally or 2/3 process height by an intricate system of membranous trabeculae; archeopyle apical, type [tA]; parasulcal notch offset; operculum free.
Comparison. Glaphyrocysta espiritosantensis (Regali, Uesugui & Santos, 1974) Arai in Fauconnier & Masure, 2004 differs from Glaphyrocysta ordinata (Williams & Downie, 1966) Stover & Evitt, 1978 in having shorter processes and more intricate system of trabeculae.
Dimensions. Holotype: total diameter = 100 μm, including processes (Regali et al., 1974b, p. 290); Lectotype: central body diameter = 68 × 74 μm; process length = 25 to 30 μm (Fauconnier & Masure 2004, p. 246); New lectotype: total diameter = 85 μm (height); 81 μm (width).
Glaphyrocysta espiritosantensis (Regali et al., 1974, p.290, pl.24, fig.3) Arai in Fauconnier and Masure, 2004, p.246. Holotype: Regali et al., 1974, pl.24, fig.3; irretrievably damaged according to Arai in Fauconnier and Masure (2004, p.246). Lectotype: Fauconnier and Masure, 2004, pl.31, figs.1–3, designated by Arai in Fauconnier and Masure (2004, p.246). Originally Hystrichosphaeridium, subsequently Areoligera, thirdly (and now) Glaphyrocysta. Age:
Maastrichtian.
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Original description: [Regali et al., 1974] (translated from Portugese):
Hystrichosphaeridium espiritosantensis sp. n.
Est. XXIV, no. 3.
Derivation: Species name derived from the state of Espírito Santo, Brazil.
Diagnosis: Spherical central capsule, smooth or with small punctures. Short processes characteristically anastomosed in the medial part.
Holotype: Type slide no. 38 – Est. XXIV, no. 3.
Diameter: 100µ, including processes.
Type site: Well 1-SES-3 (Sergipe Submarine)
1950-1980 m.
Description: Spherical central capsule, 80 to 90 µ in diameter, smooth or with small punctures.
Processes numerous and short, or with small punctures. Numerous, short processes, 10 to 12 µ long, anastomose in their midsection, forming a smooth, thin membrane. Size ranges from 80 to 100 µ, including the processes.
Comparison: Differs from H. salvadorensis sp. n. and H. paraensis sp. n. by the anastomosis of the processes in their midsection.
Distribution: Tricornites elongatus Zone.
Age: Maestrichtian.
Occurrence: Continental shelf of Maranhão, Alagoas, and Sergipe, and the Sergipe/Alagoas, Almada, and Espírito Santo basins.
-------------------------------------------------------------
Material. Specimen from well 1-RSS-3, ditch cutting sample
2,184.00–2,202.00 m, Pelotas Basin (Figure 5E).
Original description (in Portuguese and direct translation).
cápsula central esférica, com 80 a 90 μm de diâmetro, lisa ou com pequenas pontuações. Processos numerosos e curtos com pequenas pontuações, com 10 a 12 μm de comprimento, que se anastomosam em sua parte média, formando membrana lisa e fina [central body spherical, with 80–90 μm-diameter, wall smooth or finely punctate; processes numerous and short with fine punctuations and 10–12 μm-length, which anastomose in the middle part, forming a thin, smooth membrane]. New lectotype. Figure 5E (specimen from well 1-RSS-3, ditch cutting sample 2,184.00–2,202.00 m, Pelotas Basin). Slide MP-P 14613-3, England Finder N37/3.
Emended description. Cyst chorate, whose central body is lenticular with ambitus subcircular bilobate or rounded at antapex; central body wall composed by a reticulate autophragm bearing several arcuate penitabular complexes; midventral and mid-dorsal areas typically process-free; processes isolated or forming complexes joined to one another distally or 2/3 process height by an intricate system of membranous trabeculae; archeopyle apical, type [tA]; parasulcal notch offset; operculum free.
Comparison. Glaphyrocysta espiritosantensis (Regali, Uesugui & Santos, 1974) Arai in Fauconnier & Masure, 2004 differs from Glaphyrocysta ordinata (Williams & Downie, 1966) Stover & Evitt, 1978 in having shorter processes and more intricate system of trabeculae.
Dimensions. Holotype: total diameter = 100 μm, including processes (Regali et al., 1974b, p. 290); Lectotype: central body diameter = 68 × 74 μm; process length = 25 to 30 μm (Fauconnier & Masure 2004, p. 246); New lectotype: total diameter = 85 μm (height); 81 μm (width).