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Lower Cretaceous Microfloras of the Peace River Area, Northwestern Alberta

C. Singh
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The article was published on 1970-12-31 and is currently open access. It has received 148 citations till now. The article focuses on the topics: Cretaceous.

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Journal ArticleDOI

Early cretaceous fossil evidence for angiosperm evolution

Leo J. Hickey, +1 more
- 01 Jan 1977 - 
TL;DR: Comparisons of dated pollen floras of other regions indicate that one major subgroup of angiosperms, tricolpate-producing dicots (i.e., excluding Magnoliidae of Takhtajan) originated in the Aptian of Africa-South America at a time of increasing aridity and migrated poleward into Laurasia and Australasia.
Journal ArticleDOI

Colonization of Brackish-Water Systems through Time: Evidence from the Trace-Fossil Record

Luis A. Buatois, +7 more
- 01 Aug 2005 - 
TL;DR: In this article, trace fossils in estuarine deposits of different ages have been compared to evaluate colonization history of brackish-water ecosystems and to calibrate trace-fossil, brackwater models with respect to geologic time.
Journal ArticleDOI

Angiosperm pollen zonation of the continental Cretaceous of the Atlantic coastal plain and its application to deep wells in the Salisbury embayment

James A. Doyle, +1 more
- 01 Oct 1977 - 
TL;DR: In this paper, an informal zonation of the pre-Magothy continental Cretaceous sediments of the Atlantic Coastal Plain (Potomac Group, Raritan Formation), based primarily on new and previously published studies of angiosperm pollen from two wells near Delaware City, Delaware, and from outcrop samples from Virginia through New Jersey, following lines established by Brenner (1963).
Journal ArticleDOI

Comparing palynological abundance and diversity; implications for biotic replacement during the Cretaceous angiosperm radiation

Richard Lupia, +2 more
- 01 Jul 1999 - 
TL;DR: Analysis of an updated and expanded database of North American palynological samples from Cretaceous sediments document a rapid increase in angiosperm diversity and abundance within individual fossil palynofloras (represent- ing local/subregional vegetation).
Journal ArticleDOI

Angiosperm diversification and Cretaceous floristic trends: a comparison of palynofloras and leaf macrofloras

Scott Lidgard, +1 more
- 01 Jan 1990 - 
TL;DR: In the latest Cretaceous, macrofloras and palynofloras both indicate that "pteridophytes," conifers, and other "gymnosperms" are generally less diverse than angiosperms, whereas conifer diversity shows no marked temporal trend.