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Spiniferites formosus
Spiniferites formosus Shaw Chenglong, 1999b, p.177–178, figs.54–56.
Holotype: Shaw Chenglong, 1999b, figs.54–56.
Age: Eocene.
Original description (Shaw chenglong, 1999b):
Spiniferites formosus Shaw, sp.nov. (Figs. 54-56)
Description: Rounded-rhomboidal central body, smooth to perforate, bearing short solid processes less than one fourth the diameter of central body in length, Parasutural features are ridges connecting process bases. Gonal processes simple and short. Paracingulum indicated by parasutural features. Precingular archeopyle.
Dimensions holotype : Overall diameter 50-52 µm, diameter of central body 44-46 µm, processes 8-9.5 µm long (n = 1).
Stratigraphic occurrence: Eocene (OK-2 well, 1875m).
Remarks: The new species most closely resembles Spiniferites ramosus (Ehrenberg) Mantell in having a roughly similar outline; however, it differs in having simple and shorter gonal processes.
Derivation of name: The specific epithet formosus is derived from the name of the type locality Formosa Island.
Holotype: Shaw Chenglong, 1999b, figs.54–56.
Age: Eocene.
Original description (Shaw chenglong, 1999b):
Spiniferites formosus Shaw, sp.nov. (Figs. 54-56)
Description: Rounded-rhomboidal central body, smooth to perforate, bearing short solid processes less than one fourth the diameter of central body in length, Parasutural features are ridges connecting process bases. Gonal processes simple and short. Paracingulum indicated by parasutural features. Precingular archeopyle.
Dimensions holotype : Overall diameter 50-52 µm, diameter of central body 44-46 µm, processes 8-9.5 µm long (n = 1).
Stratigraphic occurrence: Eocene (OK-2 well, 1875m).
Remarks: The new species most closely resembles Spiniferites ramosus (Ehrenberg) Mantell in having a roughly similar outline; however, it differs in having simple and shorter gonal processes.
Derivation of name: The specific epithet formosus is derived from the name of the type locality Formosa Island.