Where: Antarctica (63.3° S, 136.0° E: paleocoordinates 63.9° S, 132.7° E)
• coordinate stated in text
When: Early/Lower Eocene (55.8 - 48.6 Ma)
• The lowermost 110 meters of sediments recovered at IODP Site U1356 (895.5 to 1000.08 meters below sea floor [mbsf], lithostratigraphic Units X and XI) are dated as Early to Middle Eocene in age based on the integration of dinoflagellate cyst (dinocyst) biostratigraphy and magnetostratigraphy (Expedition 318 Scientists. Site U1356. in Escutia, C., Brinkhuis, H., Klaus, A., and the Expedition 318 Scientists. Proc. IODP 318 (2011)).
Environment/lithology: shallow subtidal; bioturbated, green, silty claystone and sandstone
Size class: microfossils
Preservation: original sporopollenin
Collected by IODP
Collection methods: core, chemical, hydrochloric, hydroflouric,
• This research used samples and data provided by the Integrated Ocean Drilling Program (IODP).
•
•A total of 145 palynological samples, taken from the Eocene interval of Site U1356 at a resolution of 20-30 cm, were processed using identical protocols at the Institute of Geosciences of Goethe University Frankfurt and the Laboratory of Palaeobotany and Palynology of Utrecht University.
Primary reference: J. Pross, L. Contreras, P. K. Bijl, D. R. Greenwood, S. M. Bohaty, S. Schouten, J. A. Bendle, U. Röhl, L. Tauxe, J. I. Raine, C. E. Huck, T. Flierdt, S. S. R. Jamieson, C. E. Stickley, B. Schootbrugge, C. Escutia, H. Brinkhuis and Integrated Ocean Drilling Program. 2012. Persistent near-tropical warmth on the Antarctic continent during the early Eocene epoch. Nature (488)73-77 [C. Jaramillo/C. Jaramillo/M. Uhen]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 169270: authorized by Carlos Jaramillo, entered by Carlos Jaramillo on 14.05.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Psilatricolpites | |
Psilatricolpites spp. Van der Hammen and Wijmstra 1964 | |
Psilamonocolpites | |
Psilamonocolpites sp. Van der Hammen and Garcia de Mutis 1966 | |
Equisetopsida | |
Dilwynites granulatus Harris 1965
Araucariacites spp. Cookson and Couper 1953 | |
Alisporites | |
| |
Dicotyledoneae | |
Angiospermae | |
Margocolporites sp. Ramanajuan 1966 legume | |
Nothofagidites cf. emarcidus, Nothofagidites spp., Nothofagidites flemingii, Nothofagidites asperus, Nothofagidites lachlaniae
Nothofagidites spp. Potonié 1960 | |
Tricolpites sp. Couper 1953 | |
Proteacidites ""constrictus"", Proteacidites aff. reticuloscabratus, Proteacidites annularis, Proteacidites cf. ornatus, Proteacidites reticuloscabratus, Proteacidites similis, Proteacidites sp., Proteacidites cf. subscabratus, Proteacidites symphyonemoides, Proteacidites parvus, Triporopollenites sp.
Proteacidites ""constrictus"" Cookson and Couper 1953
Proteacidites sp. Cookson and Couper 1953
Proteacidites cf. subscabratus Couper 1960
Proteacidites symphyonemoides Cookson 1950
Proteacidites parvus Cookson 1950
Triporopollenites sp. Pflug and Thomson 1953 | |
Arecipites spp. Nichols et al. 1973 palm | |
Magnoliopsida | |
Malvacipollis spp. Harris 1965
Rhoipites spp. Wodehouse 1933
Retitricolporites spp. Van der Hammen and Wymstra 1964 | |
Podosporites sp. Rao 1943 podocarp
Podocarpidites spp. Cookson 1947 podocarp
Phyllocladidites mawsonii Cookson 1947 podocarp
Microcachryidites antarticus podocarp | |
Lycopodiopsida | |
| |
Bryopsida | |
| |
Polypodiopsida | |
| |
Laevigatosporites spp. Ibrahim 1933 | |
Pteridopsida | |
Cyathidites spp. Couper 1953 | |
Scabratricolporites | |
Scabratricolporites sp. Van der Hammen 1956 | |
Psilatriporites | |
Psilatriporites sp. Van der Hammen | |
Retistephanocolporites | |
Retistephanocolporites sp. Van der Hammen and Wijmstra 1966 |