From Frustule
| SPECIES Actinocyclus maccollumii |
Harwood and Maruyama (1992)
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Taxonomic Information
Jr. Synonymy:
- Coscinodiscus? sp. 3 in McCollum, 1975, p. 527, pl. 7, figs. 1-4.
- Actinocyclus maccollumii Harwood and Maruyama, 1992, p. 700, pl. 17, fig. 29; Zielinski and Gersonde, 2002, pl. III, figs. 10, 11, 13-15.
Morphometry:
Species Description:
- Mini Description: Valves circular, flat to slightly convex; margin striate with ring of fine perforations, 2-3 wide, at valve edge; valve face covered with areolae in subradial rows that are interrupted by the presence of several (2-5) labiate(?) processes located near mid-radius, around which the rows of areolae curve; pseudonodulus distinct at valve margin.
- Original Name Actinocyclus maccollumii Harwood & Maruyama, 1992 : Valves circular, flat to slightly convex; margin striate with ring of fine perforations, 2-3 wide, at valve edge; valve face covered with areolae in subradial rows that are interrupted by the presence of several (2-5) labiate(?) processes located near mid-radius, around which the rows of areolae curve; pseudonodulus distinct at valve margin.
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Additional Remarks
Useful References
- David M. Harwood & Toshiaki Maruyama, 1992. Middle Eocene to Pleistocene diatom biostratigraphy of Southern Ocean sediments from the Kerguelen Plateau, Leg 120. In Wise, S. W., Jr., Schlich, R., et al., 1992. Proceedings of the Ocean Drilling Program, Scientific Results, Vol. 120, p. 683-733.
