TAXONOMIC NOTES
Genus Calcidiscus Kamptner, 1950
Calcidiscus leptoporus (Murray and Blackman, 1898) Loeblich and Tappan, 1978
Genus Chiastozygus Gartner, 1968
Chiastozygus spp.
Genus Dictyococcites Black, 1967
Dictyococcites spp.
Remarks: In the present study, all reticulofenestrid specimens whose central opening cannot be idenitified under the light microscope are included in Dictyococcites specimens.
Genus Emiliania Hay and Mohler in Hay et al., 1967
Emiliania huxleyi (Lohmann, 1902) Hay and Mohler in Hay et al., 1967
Genus Diffellithus Reinhardt, 1965
Eiffellithus spp.
Genus Gephyrocapsa Kamptner, 1943
Gephyrocapsa spp. (large)
Remarks: Specimens of Gephyrocapsa >6 µm in length are included in Gephyrocapsa spp. (large).
Gephyrocapsa spp. (small)
Remarks: Specimens of Gephyrocapsa <4 µm corresponded to Gephyrocapsa spp. (small).
Gephyrocapsa? sp.
Remarks: A specimen, possibly considered to be Gephyrocapsa, was found in Sample 178-1097A-8R-CC. It is very difficult to assign it to species because of poor preservation. This specimen is ~5 µm in length.
Genus Pseudoemiliania Gartner, 1969
Pseudoemiliania lacunosa (Kamptner, 1963) Gartner, 1969
Genus Reticulofenestra Hay et al., 1966
Reticulofenestra pseudoumbilicus (Gartner, 1967) Gartner, 1969
Genus Watznaueria Reinhardt, 1964
Watznaueria barnesae (Black, 1959) Perch-Nielsen, 1968
Trilete Spores
Cicatricosisporites australiensis (Cookson) Potonié, 1956 (Plate P1, fig. 1)
Foveotriletes sp. (Plate P1, fig. 5)
Dimensions: Equatorial diameter = 28-38 µm; lumina diameter = 0.6-1 µm (13 specimens).
Rugulatisporites sp. 1 (Plate P1, fig. 2)
Dimensions: Equatorial diameter = 30-42 µm; verrucae diameter = ~3-4 µm; exine thickness = ~3 µm (seven specimens).
Rugulatisporites sp. 2 (Plate P1, fig. 3)
Dimensions: Equatorial diameter = 24-28 µm; verrucae diameter = 2-4 µm (two specimens).
Rugulatisporites sp. 3 (Plate P1, fig. 4)
Dimensions: Equatorial diameter = 26-36 µm; verrucae diameter = 2-4 µm (22 specimens).
Reticulate-type spore 1 (Plate P1, fig. 6)
Dimensions: Equatorial diameter = 36-50 µm; lumina diameter = 4-7 µm (24 specimens).
Reticulate-type spore 2 (Plate P1, fig. 7)
Dimensions: Equatorial diameter = 48, 56 µm; exine thickness = ~4 µm; lumina diameter = ~1 µm (two specimens).
Psilate-type spore 1 (Plate P1, fig. 8)
Dimensions: Polar length = 22-28 µm; equatorial diameter = 28-36 µm; exine thickness = ~4 µm (14 specimens).
Psilate-type spore 2 (Plate P1, fig. 9)
Dimensions: Polar length = 14-24 µm; equatorial diameter = 18-30 µm (55 specimens).
Monolete Spores
Laevigatosporites ovatus Wilson and Webster, 1946 (Plate P1, fig. 10)
Polypodiisporites radiatus Pocknall and Mildenhall, 1984 (Plate P1, fig. 11)
Polypodiisporites sp. (Plate P1, fig. 12)
Dimensions: Polar length = 36-38 µm; equatorial diameter = 20-22 µm; verrucae = ~2 µm high and 1-3 µm wide (three specimens).
Chenopodipollis sp. (Plate P2, fig. 22)
Dimensions: Equatorial diameter = 20 µm; pore diameter = 0.8-1 µm (one specimen).
Dilwynites tuberculatus Harris, 1965
Haloragacidites? sp. (Plate P2, fig. 23)
Dimensions: Equatorial diameter = 24 µm; pore diameter = 2-3 µm; rugulate? (one specimen).
Ilexpollenites? sp. (Plate P2, fig. 19)
Dimensions: Polar length = 18 µm; equatorial diameter = 12 µm; clavae height = 1-2 µm (one specimen).
Genus Nothofagidites (Erdtman) Potonié, 1960
Remarks: The two major morphological groups (fusca and brassi groups) occurred in the samples. Because of the difficulty of separating extant species on the basis of pollen morphology, the fossil species erected by Cookson (1959) and Couper (1953, 1960), with the exception of two species (N. flemingii and N. lachlanae), have not been consistently identified in this study.
Nothofagidites flemingii (Couper) Potonié, 1960 (Plate P2, fig. 17)
Nothofagidites lachlanae (Couper) Truswell, 1983 (Plate P2, fig. 18)
Nothofagidites spp.
Remarks: This group includes degraded and broken pollen grains of Nothofagidites species and therefore could not been minutely identified in this study.
Nupharipollis? sp. (Plate P2, fig. 16)
Dimensions: Polar length = 20 µm; equatorial diameter = 12 µm; spine height = ~1 µm (one specimen).
Phyllocladidites mawsonii Cookson ex Couper, 1953 (Plate P2, fig. 13)
Podocarpidites cf. elliptica
Remarks: The corpus diameter and the length and width of the sacci for the specimens observed are somewhat smaller than in the Australian Podocarpidites elliptica Martin (1973).
Dimensions: Corpus diameter = 22-34 µm; sacci = 10-26 µm long and 8-14 µm wide (three specimens).
Podocarpidites sp. 1 (Plate P2, fig. 14)
Dimensions: Corpus diameter = 24-34 µm; sacci = 10-30 µm long and 14-48 µm wide (12 specimens).
Podocarpidites sp. 2 (Plate P2, fig. 15)
Dimensions: Corpus diameter = 22-26 µm; sacci 8-14 µm long and 26-42 µm wide (six specimens).
Proteacidites sp. 1
Dimensions: Equatorial diameter = 34 µm; lumina diameter = ~0.6 µm; reticulate (one specimen).
Proteacidites sp. 2 (Plate P2, fig. 21)
Dimensions: Equatorial diameter = 16-18 µm; lumina diameter = 0.2-0.4 µm; reticulate (two specimens).
Psilastephanocolporites? sp.
Dimensions: Equatorial diameter = 14 µm; pores = 3 µm long and 1.5 µm in diameter (one specimen).
Tricolpites spp.
Dimensions: Polar length = 28-42 µm; equatorial diameter = 18-26 µm (seven specimens).
Tricolporopollenites sp. (Plate P2, fig. 20)
Dimensions: Polar length = 22 µm; equatorial diameter = 10 µm; pore diameter = ~2 µm; scabrate? (one specimen).
