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Cainozoic ferns and their distribution
  • M. Collinson
  • Environmental Science, Geography
  • 1 April 2001
The phytogeographic distribution of Cainozoic ferns is reported based upon a critical re-appraisal of the macrofossil and mesofossil record also taking account of evidence from a few highly
Refined correlation of the UK Late Eocene–Early Oligocene Solent Group and timing of its climate history
The dominantly nonmarine Solent Group of the Hampshire Basin, southern England , spans the Late Eocene and earliest Oligocene. It contains a rich biota, including mammals and charophytes, but
Episodic fresh surface waters in the Eocene Arctic Ocean
Palaeogene sediments obtained during the Arctic Coring Expedition are analysed, showing that large quantities of the free-floating fern Azolla grew and reproduced in the Arctic Ocean by the onset of the middle Eocene epoch and that onset and termination of the Azolla phase depended on the degree of oceanic exchange between Arctic Ocean and adjacent seas.
Eocene–Oligocene mammalian faunal turnover in the Hampshire Basin, UK: calibration to the global time scale and the major cooling event
A new high-resolution, c. 1 Ma mammalian record in continental Eocene–Oligocene strata in the Hampshire Basin is used to investigate the nature and timing of the major Europe-wide mammalian faunal
Fossil Fruits and Seeds of the Middle Eocene Messel biota, Germany -
Fossil Fruits and Seeds of the Middle Eocene Messel biota, Germany , Fossil Fruits and Seeds of the Middle Eocene Messel biota, Germany , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی
Environmental mutagenesis during the end-Permian ecological crisis.
It is document that the microspores of these lycopsids were regularly released in unseparated tetrads indicative of failure to complete the normal process of spore development, providing concrete evidence for chronic environmental mutagenesis at the time of global ecological crisis.
Alternative origin of aliphatic polymer in kerogen
The origin of sedimentary organic matter (kerogen) has been attributed to random recombination reactions of biological components in sediments or to selective preservation of decay-resistant