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The Biostratigraphy of Permian Palynofloras
Proceedings of the Annual Meeting. American Association of Stratigraphic Palynologists, 1970Abstract Classical paleobotanical theory separates the floras of the Permian Period into four distinctive provinces: (1) the Gondwanian; (2) the Angaran; (3) the Ca‐thaysian; and (4) the Euramerican. These floras are based on the stem and leaf remains which are the chief preservable macroscopic parts of plants.
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Trends in Ecology & Evolution, 2006
View Large Image | Download PowerPoint SlideBiostratigraphy. Microfossils and Geological Time gives a terrific review of the principles and development of dating rocks using the fossils that they contain (i.e. biostratigraphy). Although Brian McGoran concentrates on foraminifers, the book is worth reading for an understanding of the role of ...
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View Large Image | Download PowerPoint SlideBiostratigraphy. Microfossils and Geological Time gives a terrific review of the principles and development of dating rocks using the fossils that they contain (i.e. biostratigraphy). Although Brian McGoran concentrates on foraminifers, the book is worth reading for an understanding of the role of ...
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2009
Neoproterozoic stromatolites were first recognised in the Río de la Plata Craton (RPC) by González Bonorino (1954) in the Sierras Bayas Group (Argentina). The first body fossils were also described from this unit by Fairchild (1978) and Pothe de Baldis et al. (1983), consisting of organic-walled microfossils (acritarchs).
Gaucher, Claudio, Poire, Daniel Gustavo
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Neoproterozoic stromatolites were first recognised in the Río de la Plata Craton (RPC) by González Bonorino (1954) in the Sierras Bayas Group (Argentina). The first body fossils were also described from this unit by Fairchild (1978) and Pothe de Baldis et al. (1983), consisting of organic-walled microfossils (acritarchs).
Gaucher, Claudio, Poire, Daniel Gustavo
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Geological Society of America Bulletin, 1983
The stratigraphic record is punctuated by episodes of mass extinction; these must be accounted for by major changes in the evolution of the Earth. Three groups of forces have acted on the Earth through time and may be adduced as the ultimate causes of many geological phenomena—including extinctions.
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The stratigraphic record is punctuated by episodes of mass extinction; these must be accounted for by major changes in the evolution of the Earth. Three groups of forces have acted on the Earth through time and may be adduced as the ultimate causes of many geological phenomena—including extinctions.
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