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Wetzeliella symmetrica var. taiwaniana
Wetzeliella symmetrica "var. taiwaniana" Shaw Chenglong, 1999a, p.41–42, figs.22–30. Holotype: Shaw Chenglong, 1999a, figs.22–24. NOW Wetzeliella symmetrica? subsp. taiwaniana. Originally Wetzeliella symmetrica var. taiwaniana, subsequently (and now) Wetzeliella symmetrica? subsp. taiwaniana. Age: Eocene.
Original description (Shaw Chenglong, 1999)
Description: Cyst intermediate to large, compressed peridinioid, with four prominent horns (one apical, two lateral and one antapical). The wall of cyst thin and well-covered with appendages; processes numerous, tubiform, with bifid or entire tips, fairly long (up to 15 µm), relatively small and closely clustered on distal part of horns (2-5µm), surface view smooth; endocyst smooth, thin-walled and broadly eliptical in outline. Intercalary archeopyle, operculum sometimes attached along anterior margin, generally free.
Stratigraphic occurence. Eocene (OK-1 well, 1788m)
Dimension holotype: 120 µm long, 95 µm wide, endocyst 80 µm long, 75 µm wide, processes 2-15 µm long. Dimensions: Overall 103-120 µm long, 95-103 µm wide, enodcyst 80 µm long, tubiformed processes, the tubiformed processes up to 15 µm long (n=4 µm).
Derivation of name: The specific epithet taiwaniana is derived from the name of the type locality.
Remarks: The new variety resembles Wetzeliella symmetrica Weiler in having a roughly similar outline; however, it differs in having smaller size and in having shorter tubiform appendages.
Original description (Shaw Chenglong, 1999)
Description: Cyst intermediate to large, compressed peridinioid, with four prominent horns (one apical, two lateral and one antapical). The wall of cyst thin and well-covered with appendages; processes numerous, tubiform, with bifid or entire tips, fairly long (up to 15 µm), relatively small and closely clustered on distal part of horns (2-5µm), surface view smooth; endocyst smooth, thin-walled and broadly eliptical in outline. Intercalary archeopyle, operculum sometimes attached along anterior margin, generally free.
Stratigraphic occurence. Eocene (OK-1 well, 1788m)
Dimension holotype: 120 µm long, 95 µm wide, endocyst 80 µm long, 75 µm wide, processes 2-15 µm long. Dimensions: Overall 103-120 µm long, 95-103 µm wide, enodcyst 80 µm long, tubiformed processes, the tubiformed processes up to 15 µm long (n=4 µm).
Derivation of name: The specific epithet taiwaniana is derived from the name of the type locality.
Remarks: The new variety resembles Wetzeliella symmetrica Weiler in having a roughly similar outline; however, it differs in having smaller size and in having shorter tubiform appendages.