Where: Tasmania, Australia (41.5° S, 146.1° E: paleocoordinates 58.3° S, 145.6° E)
• coordinate stated in text
When: Proteacidites tuberculatus pollen zone, Early/Lower Oligocene (33.9 - 28.4 Ma)
• According to Macphail (pers. comm.) the age of the flora is between Early Eocene and uppermost Oligocene (Hill, 1984).
•Further palynological assessment suggests that the flora is likely to be in the Late Eocene to Oligocene range based on the high proportion of Nothofagus brassii-type and Phyllocladidites mawsonii pollen (Carpenter & Hill, 1988).
•The palynoflora has been assigned to the early Oligocene by Macphail et al. 1994. The presence of Cyatheacidites annulatus provides a confident Proteacidites tuberculatus Zone (Stover and Partridge 1973) maximum age, but the upper age limits are less certain owing to possible diachronism in the times of extinction of accessory species such as Beaupreadites verrucosus, Granodiporites nebulosus and Triporopollenites ambiguus. (Hill et al. 2008)
Environment/lithology: lagoonal; tabular, brown, gray, yellow siltstone and quartzose sandstone
•The Cethana deposit had an Early Oligocene altitude of about 300 m. It formed at a time for which there is evidence of regional glacial activity (Macphail et al. 1993), in Carpenter & Jordan, 1997.
Size classes: macrofossils, microfossils
Preservation: mold/impression, adpression
Collection methods: chemical, hydroflouric
Primary reference: R. S. Hill. 1984. Tertiary Nothofagus macrofossils from Cethana, Tasmania. Alcheringa 8(1):81-86 [C. Jaramillo/A. Cardenas ]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 166832: authorized by Carlos Jaramillo, entered by Andrés Cardenas on 28.02.2015, edited by Carlos Jaramillo
Creative Commons license: CC BY (attribution)