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Palynostratigraphy of the Cretaceous-Paleogene mass-extinction interval of the Southern Hemisphere

Vajda, Vivi LU and Bercovici, Antoine LU (2012) In Dìcéngxué zázhì 36(2). p.153-164
Abstract
The palynofloral changes around the Cretaceous-Paleogene (K-Pg) mass extinction event reveal the fine

details of vegetation response to a global environmental crisis-in this case an asteroid impact in Mexico 65.5 million

years ago. Due to the extinction of several plant taxa at the K-Pg boundary, palynostratigraphy is a prime tool for localizing

the Cretaceous-Paleogene boundary in non-marine successions. The Southern Hemisphere includes the tropical to

sub-tropical Palmae Province, the high-latitude Nothofagidites/Proteacidites Province, and a transitional zone of mixed

floristic composition. Maastrichtian key-species that go extinct at the Cretaceous-Paleogene boundary within the... (More)
The palynofloral changes around the Cretaceous-Paleogene (K-Pg) mass extinction event reveal the fine

details of vegetation response to a global environmental crisis-in this case an asteroid impact in Mexico 65.5 million

years ago. Due to the extinction of several plant taxa at the K-Pg boundary, palynostratigraphy is a prime tool for localizing

the Cretaceous-Paleogene boundary in non-marine successions. The Southern Hemisphere includes the tropical to

sub-tropical Palmae Province, the high-latitude Nothofagidites/Proteacidites Province, and a transitional zone of mixed

floristic composition. Maastrichtian key-species that go extinct at the Cretaceous-Paleogene boundary within the Palmae

Province include Aquilapollenites magnus, Buttinia andreevi, Crassitricolporites brasiliensis, Proteacidites dehaani and

Gabonisporis vigourouxii. In the Nothofagidites/Proteacidites Province, taxa such as Tricolporites lilliei, Triporopollenites

sectilis, Quadraplanus brossus, Nothofagidites kaitangata, and Grapnelispora evansii have their last appearances

at the boundary. It is obvious that more thorough analyses of the palynological signals across the K-Pg boundary in the The palynofloral changes around the Cretaceous-Paleogene (K-Pg) mass extinction event reveal the fine

details of vegetation response to a global environmental crisis-in this case an asteroid impact in Mexico 65.5 million

years ago. Due to the extinction of several plant taxa at the K-Pg boundary, palynostratigraphy is a prime tool for localizing

the Cretaceous-Paleogene boundary in non-marine successions. The Southern Hemisphere includes the tropical to

sub-tropical Palmae Province, the high-latitude Nothofagidites/Proteacidites Province, and a transitional zone of mixed

floristic composition. Maastrichtian key-species that go extinct at the Cretaceous-Paleogene boundary within the Palmae

Province include Aquilapollenites magnus, Buttinia andreevi, Crassitricolporites brasiliensis, Proteacidites dehaani and

Gabonisporis vigourouxii. In the Nothofagidites/Proteacidites Province, taxa such as Tricolporites lilliei, Triporopollenites

sectilis, Quadraplanus brossus, Nothofagidites kaitangata, and Grapnelispora evansii have their last appearances at the boundary. It is obvious that more thorough analyses of the palynological signals across the K-Pg boundary in the Southern Hemisphere and China are required to elucidate the detailed patterns of vegetation response at different latitudes and at varying distances from the impact site in Yucatan, Mexico. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
biostratigraphy, palynology, pollen, spores, mass-extinction, Cretaceous, Paleogene, Hemisphere
in
Dìcéngxué zázhì
volume
36
issue
2
pages
153 - 164
publisher
Quánguó dìcéng wĕiyuánhuì : Acta stratigraphica Sinica
ISSN
0253-4959
language
English
LU publication?
yes
id
cdf2ba87-d50d-4ca5-bf9b-ee60155928a8 (old id 4281203)
date added to LUP
2014-02-01 15:32:27
date last changed
2016-04-15 23:51:58
@article{cdf2ba87-d50d-4ca5-bf9b-ee60155928a8,
  abstract     = {The palynofloral changes around the Cretaceous-Paleogene (K-Pg) mass extinction event reveal the fine<br/><br>
details of vegetation response to a global environmental crisis-in this case an asteroid impact in Mexico 65.5 million<br/><br>
years ago. Due to the extinction of several plant taxa at the K-Pg boundary, palynostratigraphy is a prime tool for localizing<br/><br>
the Cretaceous-Paleogene boundary in non-marine successions. The Southern Hemisphere includes the tropical to<br/><br>
sub-tropical Palmae Province, the high-latitude Nothofagidites/Proteacidites Province, and a transitional zone of mixed<br/><br>
floristic composition. Maastrichtian key-species that go extinct at the Cretaceous-Paleogene boundary within the Palmae<br/><br>
Province include Aquilapollenites magnus, Buttinia andreevi, Crassitricolporites brasiliensis, Proteacidites dehaani and<br/><br>
Gabonisporis vigourouxii. In the Nothofagidites/Proteacidites Province, taxa such as Tricolporites lilliei, Triporopollenites<br/><br>
sectilis, Quadraplanus brossus, Nothofagidites kaitangata, and Grapnelispora evansii have their last appearances<br/><br>
at the boundary. It is obvious that more thorough analyses of the palynological signals across the K-Pg boundary in the The palynofloral changes around the Cretaceous-Paleogene (K-Pg) mass extinction event reveal the fine<br/><br>
details of vegetation response to a global environmental crisis-in this case an asteroid impact in Mexico 65.5 million<br/><br>
years ago. Due to the extinction of several plant taxa at the K-Pg boundary, palynostratigraphy is a prime tool for localizing<br/><br>
the Cretaceous-Paleogene boundary in non-marine successions. The Southern Hemisphere includes the tropical to<br/><br>
sub-tropical Palmae Province, the high-latitude Nothofagidites/Proteacidites Province, and a transitional zone of mixed<br/><br>
floristic composition. Maastrichtian key-species that go extinct at the Cretaceous-Paleogene boundary within the Palmae<br/><br>
Province include Aquilapollenites magnus, Buttinia andreevi, Crassitricolporites brasiliensis, Proteacidites dehaani and<br/><br>
Gabonisporis vigourouxii. In the Nothofagidites/Proteacidites Province, taxa such as Tricolporites lilliei, Triporopollenites<br/><br>
sectilis, Quadraplanus brossus, Nothofagidites kaitangata, and Grapnelispora evansii have their last appearances at the boundary. It is obvious that more thorough analyses of the palynological signals across the K-Pg boundary in the Southern Hemisphere and China are required to elucidate the detailed patterns of vegetation response at different latitudes and at varying distances from the impact site in Yucatan, Mexico.},
  author       = {Vajda, Vivi and Bercovici, Antoine},
  issn         = {0253-4959},
  keyword      = {biostratigraphy,palynology,pollen,spores,mass-extinction,Cretaceous,Paleogene,Hemisphere},
  language     = {eng},
  number       = {2},
  pages        = {153--164},
  publisher    = {Quánguó dìcéng wĕiyuánhuì : Acta stratigraphica Sinica},
  series       = {Dìcéngxué zázhì},
  title        = {Palynostratigraphy of the Cretaceous-Paleogene mass-extinction interval of the Southern Hemisphere},
  volume       = {36},
  year         = {2012},
}