The ultrastructure of fossil ephedroid pollen with gnetalean affinities from the Lower Cretaceous of Brazil

[1]  J. V. K. Cittert,et al.  An enigmatic Liassic microsporophyll, yielding Ephedripites pollen , 1992 .

[2]  M. H. Kurmann.  Exine stratification in extant gymnosperms: a review of published transmission electron micrographs , 1992 .

[3]  M. Zavada,et al.  Comparative pollen wall development of Welwitschia mirabilis and selected primitive angiosperms , 1991 .

[4]  J. Osborn.  Comparative ultrastructure of fossil gymnosperm pollen and implications regarding the origin of angiosperms , 1991 .

[5]  M. Zavada.  The ultrastructure of three monosulcate pollen grains from the triassic chinle formation, western United States , 1990 .

[6]  K. Niklas,et al.  Aerodynamics of Ephedra trifurca. III. Selective Pollen Capture by Pollination Droplets , 1989, Botanical Gazette.

[7]  S. Pocock,et al.  Cornetipollis reticulata, a new pollen with angiospermid features from Upper Triassic (Carnian) sediments of Arizona (U.S.A.), with notes on Equisetosporites , 1988 .

[8]  P. Crane,et al.  Drewria potomacensis gen. et sp. nov., an early Cretaceous member of Gnetales from the Potomac Group of Virginia , 1987 .

[9]  K. Niklas,et al.  THE AERODYNAMICS OF POLLEN CAPTURE IN TWO SYMPATRIC EPHEDRA SPECIES , 1987, Evolution; international journal of organic evolution.

[10]  K. Niklas,et al.  AERODYNAMICS OF EPHEDRA TRIFURCA: I. POLLEN GRAIN VELOCITY FIELDS AROUND STEMS BEARING OVULES , 1986 .

[11]  K. Niklas,et al.  Aerodynamics of Ephedra trifurca , 1986 .

[12]  V. Krassilov,et al.  New floral structure from the Lower Cretaceous of Lake Baikal area , 1986 .

[13]  S. Blackmore,et al.  Harmomegathic mechanisms in pollen grains , 1986 .

[14]  Peter R. Crane,et al.  Phylogenetic analysis of seed plants and the origin of angiosperms , 1985 .

[15]  M. Zavada.  Angiosperm Origins and Evolution Based on Dispersed Fossil Pollen Ultrastructure , 1984 .

[16]  L. I. Doher.  Palynomorph preparation procedures currently used in the paleontology and stratigraphy laboratories, U.S. Geological Survey , 1980 .

[17]  M. R. D. Lima.  PALINOLOGIA DA FORMACÃO SANTANA (CRETÁCEO DO NORDESTE DO BRASIL). II. DESÇRICÃO SISTEMÁTICA DOS ESPOROS DA SUBTURMA ZONOTRILETES E TURMA MONOLOTES, E DOS POLENS DAS TURMAS SACCITES E ALETES , 1979 .

[18]  Rodolfo Murilo De Lima.  PALINOLOGIA DA FORMACÁO SANTANA (CRETÁCEO DO NORDESTE DO BRASIL). III. DESCRICÁO SISTEMÁTICA DOS POLENS DA TURMA PLICATES (SUBTURMA COSTATES) , 1978 .

[19]  M. R. D. Lima.  Palinologia da formação Santana (cretáceo do nordeste do Brasil). Introdução geológica e descrição sistemática dos esporos da subturma azonotriletes , 1978 .

[20]  D. Moran,et al.  A simple procedure for mounting wrinkle-free sections on formvar-coated slot grids. , 1975, Ultramicroscopy.

[21]  S. Srivastava.  Ephedralean pollen from the Upper Cretaceous Edmonton Formation of Alberta (Canada) and their paleoecological significance , 1968 .

[22]  B. Gullvåg.  The Fine Structure of Some Gymnosperm Pollen Walls , 1966 .

[23]  R. Coggeshall,et al.  A SIMPLIFIED LEAD CITRATE STAIN FOR USE IN ELECTRON MICROSCOPY , 1965, The Journal of cell biology.

[24]  L. Stover.  Cretaceous ephedroid pollen from west Africa , 1964 .

[25]  S. Pocock.  Pollen and Spores of the Chlamydospermidae and Schizaeaceae from Upper Mannville Strata of the Saskatoon Area of Saskatchewan , 1964 .

[26]  C. Singh.  Microflora of the Lower Cretaceous Mannville Group, East-Central Alberta , 1963 .

[27]  R. Scott.  Pollen of Ephedra from the Chinle Formation (Upper Triassic) [Arizona] and the genus Equisetosporites , 1960 .

[28]  E. Barghoorn,et al.  The Pollen of Ephedra , 1959, Journal of the Arnold Arboretum..

[29]  R. P. Wodehouse.  Pollen grains : their structure, indentification and significance in science and medicine , 1937 .