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Eisenackia taiwaniana
Eisenackia taiwaniana Shaw Chenglong, 1999b, p.196,198, figs.136-141.
Holotype: Shaw Chenglong, 1999b, figs.136-138.
Age: Eocene.
(Shaw Chenglong, 1999)
Description: Spherical to ellipsoidal cyst without appendages, diameter 61-62 µm. Wall thick and smooth; parasutural features relatively narrow, linear and low ridges between raised intratubular areas, with high membrane wall-like penitabular processes. Paracingulum indicated by transversely elongate penitabular ridges. Apical Archeopyle, operculum free.
Dimensions Holotype: Overall 61 µm long, 62 µm wide, cyst 47 µm long, 49 µm wide, surface features delineated by high membranous walls, the walls up to 9-13 µm long.
Derivation of name: The specific epithet taiwaniana id derived from the name of the type locality.
Stratigraphic occurrence: Eocene (OK-2 well, 1875m, 1916m).
Remarks: The species differs from the type species Eisenackia crassitabulata in lacking a thick-walled mesh of the plates and in having a smaller size.
Holotype: Shaw Chenglong, 1999b, figs.136-138.
Age: Eocene.
(Shaw Chenglong, 1999)
Description: Spherical to ellipsoidal cyst without appendages, diameter 61-62 µm. Wall thick and smooth; parasutural features relatively narrow, linear and low ridges between raised intratubular areas, with high membrane wall-like penitabular processes. Paracingulum indicated by transversely elongate penitabular ridges. Apical Archeopyle, operculum free.
Dimensions Holotype: Overall 61 µm long, 62 µm wide, cyst 47 µm long, 49 µm wide, surface features delineated by high membranous walls, the walls up to 9-13 µm long.
Derivation of name: The specific epithet taiwaniana id derived from the name of the type locality.
Stratigraphic occurrence: Eocene (OK-2 well, 1875m, 1916m).
Remarks: The species differs from the type species Eisenackia crassitabulata in lacking a thick-walled mesh of the plates and in having a smaller size.