The recent discovery of diverse fossil flowers and floral organs in Cretaceous strata has revealed astonishing details about the structural and systematic diversity of early angiosperms. Exploring the rich fossil record that has accumulated over the last three decades, this is a unique study of the evolutionary history of flowering plants from their earliest phases in obscurity to their dominance in modern vegetation. The discussion provides comprehensive biological and geological background information, before moving on to summarise the fossil record in detail. Including previously unpublished results based on research into Early and Late Cretaceous fossil floras from Europe and North America, the authors draw on direct palaeontological evidence of the pattern of angiosperm evolution through time. Synthesising palaeobotanical data with information from living plants, this unique book explores the latest research in the field, highlighting connections with phylogenetic systematics, structure and the biology of extant angiosperms.The earliest flowers known to have a distinct calyx and corolla, and that seem likely to have rosid affinities, are from the ... These fossil flowers from the Rose Creek locality (Upchurch and Dilcher, 1990) have not been formally named and are ... The flowers are 2a3 cm in diameter, pentamerous and isomerous, apparently with four whorls of floral parts (Figure 14.3). ... opposite the petals, but this is not completely clear from the Figure 14.3 Reconstruction (A) and floral diagram (B) of theanbsp;...
|Title||:||Early Flowers and Angiosperm Evolution|
|Author||:||Else Marie Friis, Peter R. Crane, Kaj Raunsgaard Pedersen|
|Publisher||:||Cambridge University Press - 2011-08-18|