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A new terrestrial Cretaceous-Paleogene site in New Zealand-turnover in macroflora confirmed by palynology

Pole, Mike and Vajda, Vivi LU (2009) In Cretaceous Research 30(4). p.917-938
Abstract
A fluvial sequence near Cave Stream (north of Castle Hill Village, central Canterbury), New Zealand, contains organically-preserved plant macrofossils (cuticles). The almost ubiquitous presence of Araucariaceae macrofossils in the lower part of the section and their stratigraphic disappearance roughly coincident with the appearance of the angiosperm leaf Dryandra comptoniaefolia and conifer taxa only known elsewhere from sediments of Paleogene age, indicates that the section spans the Cretaceous-Paleogene (K-T) boundary. This was subsequently confirmed by a palynological study that demonstrated the disappearance of Late Cretaceous index species within the investigated exposure. The sequence supports the pattern recognized elsewhere in New... (More)
A fluvial sequence near Cave Stream (north of Castle Hill Village, central Canterbury), New Zealand, contains organically-preserved plant macrofossils (cuticles). The almost ubiquitous presence of Araucariaceae macrofossils in the lower part of the section and their stratigraphic disappearance roughly coincident with the appearance of the angiosperm leaf Dryandra comptoniaefolia and conifer taxa only known elsewhere from sediments of Paleogene age, indicates that the section spans the Cretaceous-Paleogene (K-T) boundary. This was subsequently confirmed by a palynological study that demonstrated the disappearance of Late Cretaceous index species within the investigated exposure. The sequence supports the pattern recognized elsewhere in New Zealand where Araucariaceae macrofossils either disappear or become very rare in end-Cretaceous and the leaf Dryandra comptoniaefolia is an important component in the early Cenozoic. The Cave Stream K-T boundary is one of the very few in the world with organically-preserved plant macrofossils and confirms the dramatic turnover in macroflora, which is known from North America. (C) 2009 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Mass-extinction, Palynoflora, Macroflora, Cretaceous, Paleogene, Cuticle
in
Cretaceous Research
volume
30
issue
4
pages
917 - 938
publisher
Elsevier
external identifiers
  • wos:000267621500008
  • scopus:67349182647
ISSN
0195-6671
DOI
10.1016/j.cretres.2009.02.007
language
English
LU publication?
yes
id
58e85b96-e6bf-4f83-bb48-3635bdc710ce (old id 1463331)
date added to LUP
2009-08-17 15:13:21
date last changed
2017-09-03 04:17:23
@article{58e85b96-e6bf-4f83-bb48-3635bdc710ce,
  abstract     = {A fluvial sequence near Cave Stream (north of Castle Hill Village, central Canterbury), New Zealand, contains organically-preserved plant macrofossils (cuticles). The almost ubiquitous presence of Araucariaceae macrofossils in the lower part of the section and their stratigraphic disappearance roughly coincident with the appearance of the angiosperm leaf Dryandra comptoniaefolia and conifer taxa only known elsewhere from sediments of Paleogene age, indicates that the section spans the Cretaceous-Paleogene (K-T) boundary. This was subsequently confirmed by a palynological study that demonstrated the disappearance of Late Cretaceous index species within the investigated exposure. The sequence supports the pattern recognized elsewhere in New Zealand where Araucariaceae macrofossils either disappear or become very rare in end-Cretaceous and the leaf Dryandra comptoniaefolia is an important component in the early Cenozoic. The Cave Stream K-T boundary is one of the very few in the world with organically-preserved plant macrofossils and confirms the dramatic turnover in macroflora, which is known from North America. (C) 2009 Elsevier Ltd. All rights reserved.},
  author       = {Pole, Mike and Vajda, Vivi},
  issn         = {0195-6671},
  keyword      = {Mass-extinction,Palynoflora,Macroflora,Cretaceous,Paleogene,Cuticle},
  language     = {eng},
  number       = {4},
  pages        = {917--938},
  publisher    = {Elsevier},
  series       = {Cretaceous Research},
  title        = {A new terrestrial Cretaceous-Paleogene site in New Zealand-turnover in macroflora confirmed by palynology},
  url          = {http://dx.doi.org/10.1016/j.cretres.2009.02.007},
  volume       = {30},
  year         = {2009},
}