Where: Antarctica (64.3° S, 56.7° W: paleocoordinates 63.8° S, 61.5° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: La Meseta Formation, Eocene (56.0 - 33.9 Ma)
Environment/lithology: coastal; burrowed, silty sandstone and poorly lithified, concretionary, shelly/skeletal sandstone
•
•About environment: These deltaic, shallow marine to intertidal sediments are richly fossiliferous, containing a great variety of beautifully preserved invertebrate fossils (Stilwell & Zinsmeister, 1992).
Size class: microfossils
Preservation: original sporopollenin
Collection methods: chemical,
• Subdivision of the La Meseta Formation terrestrial and marine palynomorph succession into four provisional zones is possible, but their formal description awaits confirmation from pending analyses of additional samples, particularly in the uppermost part of the formation.
Primary reference: R. A. Askin. 1997. Eocene-?Earliest Oligocene terrestrial palynology of Seymour Island, Antarctica. : 993-996. The Antarctic Region: Geological Evolution and Processes 993-996 [C. Jaramillo/C. Jaramillo]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 167931: authorized by Carlos Jaramillo, entered by Carlos Jaramillo on 08.04.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Magnoliopsida | |
Periporopollenites polyoratus, Gemmamonocolpites sp., Malvacipollis sp., Malvacipollis subtilis, Haloragacidites harrisii, Tricolporites sp.
Gemmamonocolpites sp. Van der Hammen and Garcia 1966
Malvacipollis sp. Harris 1965
Malvacipollis subtilis Stover 1973
Haloragacidites harrisii Mildenhall and Harris 1971
Tricolporites sp. Cookson 1947 | |
Dicotyledoneae | |
Ericipites scabratus Harris 1965 heather | |
Myrtaceidites parvus Cookson and Pike 1960 | |
Angiospermae | |
Droseridites sp. Potonié 1960 | |
Ilexpollenites sp. Thiergart 1937 | |
Anacolosidites sp. Krutzsch 1959 | |
Propylipollis spp., Beaupreaidites verrucosus, Beaupreaidites spp., Proteacidites spp., Banksieaeidites spp.
Propylipollis spp. Martin and Harris 1975
Beaupreaidites spp. Potonié 1960
Proteacidites spp. Cookson and Couper 1953
Banksieaeidites spp. Cookson 1950 | |
Tricolpites reticulatus Couper 1953 | |
Milfordia cf. homeopunctata Partridge 1973 | |
Liliacidites spp. Couper 1953 | |
Nothofagidites spp. Potonié 1960 | |
Cupanieidites orthoteichus soapberry | |
Granodiporites | |
Granodiporites sp. Varma and Rewat 1963 |