Prydz Bay Unit III: Late/Upper Eocene, Antarctica

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Battenipollis sectilis microspore
Extinct clade
Integricorpus informal Type A microspore
Extinct clade
Integricorpus informal Type B microspore
Fischeripollis informal sp. A microspore
Tetradopollenites spp. microspore
Australopollis obscurus microspore Krutszch 1966
Pteridopsida
Cyathidites minor microspore Couper 1953
C. minor–australis
Monolites cf. alveolatus microspore Couper 1969
Polypodiopsida - Blechnaceae
Leptolepidites cf. verrucatus microspore Couper 1953
Polypodiopsida - Polypodiaceae
Laevigatosporites ovatus microspore Wilson and Webster 1946
L. ovatus–major
Trichotomosulcites spp. microspore
Trichotomosulcites–Podosporites
Polypodiopsida - Osmundaceae
Baculatisporites comaumensis microspore Potonie 1953
Polypodiopsida - Gleicheniaceae
Clavifera triplex microspore Bolkhovitina 1966
Gleicheniidites spp. microspore
Polypodiopsida - Schizaeales
Ruffordiaspora australiensis microspore Dettmann and Clifford 1992
Appendicisporites cf. crassicarinatus microspore
Polypodiopsida - Gleicheniales - Matoniaceae
Dictyophyllidites cf. arcuatus microspore Pocknall and Mildenhall 1984
Polypodiopsida - Polypodiales
Polypodiisporites spp. microspore
Coniferales - Podocarpaceae
Trisaccites variabilis microspore
Podocarpidites spp. microspore
Microcachryidites antarcticus microspore Couper 1953
Podosporites cf. erugatus microspore
Phyllocladidites reticulosaccatus microspore
Phyllocladidites mawsonii microspore Cookson 1947
Dacrydiumites florinii microspore Cookson and Pike 1953
Dacrycarpites australiensis microspore Cookson and Pike 1953
Microalatidites palaeogenicus microspore
Pinopsida - Pinales - Taxodiaceae
Cupressacites spp. microspore
Magnoliopsida
Malvacipollis spp. microspore
Malvacipollis subtilis microspore Stover 1973
Malvacipollis diversus microspore Harris 1965
Forcipites cf. stipulatus microspore Dettmann and Jarzen 1988
Extinct clade
Forcipites sabulosus microspore Dettmann and Jarzen 1988
Periporopollenites polyoratus microspore
Periporopollenites spinosus microspore
Extinct
Periporopollenites demarcatus microspore Stover 1973
Periporopollenites vesicus microspore Partridge 1973
Haloragacidites harrisii microspore Mildenhall and Harris 1971
Gambierina cf. edwardsii microspore
Extinct clade
Gambierina rudata microspore
Extinct clade
Rhoipites informal sp. A microspore Wodehouse 1933
Rhoipites informal sp. E microspore Wodehouse 1933
Angiospermae - Sapindales - Sapindaceae
Cupanieidites orthoteichus microspore
Angiospermae - Fagales
Nothofagidites emarcidus microspore
N. emarcidus complex
Nothofagidites goniatus microspore
Nothofagidites cf. matauraensis microspore
Nothofagidites brachyspinulosus microspore Harris 1965
N. brachyspinulosus complex
Nothofagidites flemingii microspore Potonie 1960
N. flemingii complex
Nothofagidites lachlaniae microspore Pocknall and Mildenhall 1984
N. lachlaniae complex
Nothofagidites asperus microspore Cookson 1958
N. asperus complex
Angiospermae - Gunnerales
Tricolpites informal sp. B microspore Couper 1953
Tricolpites informal sp. C microspore Couper 1953
Tricolpites informal sp. D microspore Couper 1953
Tricolpites cf. asperamarginis microspore McIntyre 1968
Angiospermae - Proteales
Peninsulapollis gillii microspore Dettmann and Jarzen 1988
Extinct clade
Peninsulapollis truswelliae microspore Dettmann and Jarzen 1988
Extinct clade
Angiospermae - Proteales - Proteaceae
Beaupreaidites elegansiformis microspore Cookson 1950
Propylipollis informal sp. A microspore Martin and Harris 1975
Propylipollis?
Propylipollis informal sp. B microspore Martin and Harris 1975
Propylipollis?
Propylipollis informal sp. C microspore Martin and Harris 1975
Propylipollis?
Propylipollis informal sp. D microspore Martin and Harris 1975
Propylipollis?
Propylipollis informal sp. E microspore Martin and Harris 1975
Propylipollis?
Propylipollis cf. tenuiexinus microspore Dettmann and Jarzen 1996
Banksieaeidites spp. microspore
Banksieaeidites/Granodiporites
Proteacidites crassimarginis microspore
Proteacidites kopiensis microspore
Proteacidites cf. adenanthoides microspore
Proteacidites cf. differentipolus microspore
Proteacidites cf. kopiensis microspore
Proteacidites cf. simplex microspore
Proteacidites aff. sinulatus microspore
Proteacidites spp. microspore
Proteacidites pseudomoides microspore Stover 1973
Proteacidites angulatus microspore Stover 1973
Angiospermae - Arecaceae
Luminidites cf. phormoides microspore
Arecipites spp. microspore
Angiospermae - Liliaceae
Liliacidites spp. microspore
Angiospermae
Aglaoreidia qualumis microspore
Angiospermae - Poales - Poaceae
Graminidites spp. microspore
Angiospermae - Myrtales
Myrtaceidites parvus microspore Cookson and Pike 1960
M. parvus/mesonesus
Angiospermae - Ericales - Ericaceae
Ericipites spp. microspore
Bryopsida
Stereisporites australis microspore
Stereisporites stellus microspore
Stereisporites informal sp. A of Mckellar microspore Pflug 1953
Stereisporites antiquasporites microspore Dettmann 1963
Equisetopsida - Araucariaceae
Balmeiopsis limbata microspore Archangelsky 1979
Araucariacites sp. microspore Cookson and Couper 1953
Araucariacites australis microspore Cookson 1947
Dilwynites pusillus microspore
Dilwynites granulatus microspore Harris 1965
Lycopodiopsida - Selaginellales
Foveosporites cf. canalis microspore Balme 1957
Lycopodiopsida - Selaginellales - Selaginellaceae
Neoraistrickia cf. taylorii microspore Playford and Dettmann 1965
Neoraistrickia cf. suratensis microspore McKellar 1974
Lycopodiopsida - Lycopodiales
Retitriletes spp. microspore
Ginkgoopsida - Caytoniales
Vitreisporites pallidus microspore Nilsson 1958
Extinct
unclassified
Quintiniapollis spp. microspore
Cyperaceaepollis neogenicus microspore Krutzsch 1970
see common names

Geography
Country:Antarctica State/province:Prydz Bay
Coordinates: 69.0° South, 75.0° East (view map)
Paleocoordinates:68.2° South, 69.6° East
Basis of coordinate:estimated from map
Time
Period:Paleogene Epoch:Eocene
Stage:Priabonian 10 m.y. bin:Cenozoic 3
Key time interval:Late/Upper Eocene Other zone: Marine dinocyst
Age range of interval:37.71000 - 33.90000 m.y. ago
Stratigraphy
Stratigraphy comments: The proposed Late Eocene age of sediments between 142.5 and 240.36 mbsf at Site 1166 is primarily based on marine dinocyst and acritarch species (see discussion in Macphail and Truswell 2004a).
Lithology and environment
Primary lithology: silty,sandy not reported
Lithology description: Unit III (156.62–267.17 mbsf), which consists of massive and deformed sands with a silty clay matrix in its lower parts, is rich in organic matter and includes pieces of wood.
Environment:delta plain
Glacial or sequence phase:glacial
Geology comments: During the period represented by Units II and III, the East Antarctic ice sheet extended from the mountain front down to sea level and onto the continental shelf. Unit III probably represents glacial outwash sands deposited on an alluvial plain or delta (Whitehead et al. 2006).

The sedimentary record at Site 1166 shows that the sequence spans the transition from preglacial to glacial conditions.
Taphonomy
Modes of preservation:original sporopollenin
Size of fossils:microfossils
Collection methods and comments
Collection methods:chemical,field collection
Reason for describing collection:paleoecologic analysis
Collection method comments: The material that forms the basis of the present study comes from ODP Site 1166 in Prydz Bay, drilled during Leg 188 of the Ocean Drilling Program.
Metadata
Database number:168824
Authorizer:C. Jaramillo Enterer:C. Jaramillo
Research group:micropaleontology
Created:2015-04-30 11:22:19 Last modified:2015-04-30 11:22:19
Access level:the public Released:2015-04-30 11:22:19
Creative Commons license:CC BY
Reference information

Primary reference:
55199.fossil record E. M. Truswell and M. K. Macphail. 2009. Polar forests on the edge of extinction: what does the fossil spore and pollen evidence from East Antarctica say?. Australian Systematic Botany (22)57-106 [C. Jaramillo/C. Jaramillo]