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Wetzeliella articulata subsp. taiwaniana
From Fensome et al., 2019:
Wetzeliella articulata subsp. taiwaniana (Shaw Chenglong, 1999a, p.42,44–45, figs.37–48) Williams et al., 2015, p.317.
Originally Wetzeliella articulata var. taiwaniana, subsequently (and now) Wetzeliella articulata? subsp. taiwaniana. Questionable asignment: Williams et al. (2015, p.317).
Holotype: Shaw Chenglong, 1999a, figs.37–39.
Age: Eocene.
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Original description (Shaw Chenglong, 1999a):
Wetzeliella articulata Eisenack taiwaniana C. L. Shaw var. nov. Figs. 37-48
Holotype: Sample slide: OK-2 1875- (4); film WA69-17, WA69-18, WA69-19 (Holotype at three focus levels); Figs. 37-39; CPC Micropaleontology Lab.
Descriptions: Cyst intermediate to large, compressed peridinioid, with apical, two lateral and two well-developed to relative reduced antapical horns. The wall of cyst thin and wellcovered with appendages; processes numerous, tubiformed, with bifid or entire tips, fairly long (up to 15 µm) relative small and closely clustered on distal pari of horns (2-4 μm) surface view smooth; endocyst smooth, thin-walled and broadly elliptical in outline. Intercalary archeopyle, operculum sometimes attached along anterior margin, generally free.
Dimensions Holotype: Overall Length 145 μm long, breadth 127.5 µm wide, length of endocyst 93 μm long, breadth 80 μm wide, length ofprocesses 5 -21 µm long.
Dimensions: Overall length 107-145 μm long, breadth 87-131 μm wide, length of endocyst 75- μm long, breadth 70-82.5 µm wide, surface features with tubiformed processes, the tubiformed processes may up to 21 µm long (n=11).
Stratigraphic occurrence: Eocene (OK-2 well, 1875m; OK-l well, 1788m)
Derivation of name: The specific epithet taiwaniana is derived from the name of Taiwan Island of type locality.
Remarks: The new variety resembles Wetzeliella articulata Eisenack in having a roughly similar outline and virtually no development of a right antapical horn. However it differs from that in having a smaller size and shorter tubiformed appendages.
Wetzeliella articulata subsp. taiwaniana (Shaw Chenglong, 1999a, p.42,44–45, figs.37–48) Williams et al., 2015, p.317.
Originally Wetzeliella articulata var. taiwaniana, subsequently (and now) Wetzeliella articulata? subsp. taiwaniana. Questionable asignment: Williams et al. (2015, p.317).
Holotype: Shaw Chenglong, 1999a, figs.37–39.
Age: Eocene.
---------------------------------------------------------------------------------------------------
Original description (Shaw Chenglong, 1999a):
Wetzeliella articulata Eisenack taiwaniana C. L. Shaw var. nov. Figs. 37-48
Holotype: Sample slide: OK-2 1875- (4); film WA69-17, WA69-18, WA69-19 (Holotype at three focus levels); Figs. 37-39; CPC Micropaleontology Lab.
Descriptions: Cyst intermediate to large, compressed peridinioid, with apical, two lateral and two well-developed to relative reduced antapical horns. The wall of cyst thin and wellcovered with appendages; processes numerous, tubiformed, with bifid or entire tips, fairly long (up to 15 µm) relative small and closely clustered on distal pari of horns (2-4 μm) surface view smooth; endocyst smooth, thin-walled and broadly elliptical in outline. Intercalary archeopyle, operculum sometimes attached along anterior margin, generally free.
Dimensions Holotype: Overall Length 145 μm long, breadth 127.5 µm wide, length of endocyst 93 μm long, breadth 80 μm wide, length ofprocesses 5 -21 µm long.
Dimensions: Overall length 107-145 μm long, breadth 87-131 μm wide, length of endocyst 75- μm long, breadth 70-82.5 µm wide, surface features with tubiformed processes, the tubiformed processes may up to 21 µm long (n=11).
Stratigraphic occurrence: Eocene (OK-2 well, 1875m; OK-l well, 1788m)
Derivation of name: The specific epithet taiwaniana is derived from the name of Taiwan Island of type locality.
Remarks: The new variety resembles Wetzeliella articulata Eisenack in having a roughly similar outline and virtually no development of a right antapical horn. However it differs from that in having a smaller size and shorter tubiformed appendages.