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Male aggressive behavior in a pair of sympatric sibling species
(Harvard University, Museum of Comparative Zoology, 1985)
Intraspecific encounters were staged between adult male <i>Anolis marcanoi</i> and <i>A. cybotes</i> in order to describe their aggressive behavior. The major component of stationary behavior is the dewlap display, accompanied ...
Paleobiology of Distinctive Benthic Microfossils from the Upper Proterozoic Limestone-Dolomite "Series," Central East Greenland
(Botanical Society of America, 1987)
Populations of <i>Polybessurus bipartitus</i> Fairchild ex Green et al., a large and morphologically distinctive microfossil, occur in silicified carbonates of the Upper Proterozoic (700-800 Ma) Limestone-Dolomite "Series," ...
Microbiotas of the Late Precambrian Hunnberg Formation, Nordaustlandet, Svalbard
(The Paleontological Society, 1984)
A distinctive carbonate shallowing-upward sequence occurs within the Upper Riphean (750-800 Ma) Hunnberg Formation of Nordaustlandet, Svalbard. Clastic limestones deposited in an open coastal marine environment pass upward ...
Patterns of Evolution in the Archean and Proterozoic Eons
(Paleontological Society, 1985)
Problems of taphonomy and sampling adequacy hinder direct evolutionary interpretations of pattern in the Precambrian paleontological record; however, molecular studies of microbial phylogeny and comparative physiological ...
The Distribution and Evolution of Microbial Life in the Late Proterozoic Era
(Annual Reviews, 1985)
Until recently, it was possible to discuss pattern in the Precambrian fossil record in terms of three benchmark fossil assemblages conveniently dated at approximately 3000, 2000, and 1000 million years before the present ...
Parent-Specific Gene-Expression and the Triploid Endosperm
(University of Chicago Press, 1989)
No abstract
On Limits to Seed Production
(University of Chicago Press, 1988)
Constitution of Antheridium-Inducing Factor of Anemia Phyllitidis
(Elsevier, 1986)
Careful comparison of naturally derived and synthetic samples of the antheridium-inducing factor of Anemia phyllitidis, AA,,, by TLC, HPLC, NMR and GC-MS measurements allow unambiguous assignment of structure 2 to this ...
Exceptional Preservation of Fossils in an Upper Proterozoic Shale
(Nature Publishing Group, 1988)
Late Proterozoic organisms must have been diverse and widely distributed, but in general their fossil record is both taxonomically and environmentally limited. Exceptional preservation of Proterozoic fossils is not unknown, ...
Sr Isotopic Variations in Upper Proterozoic carbonates from Svalbard and East Greenland
(Elsevier, 1989)
We report initial Sr(87)/Sr(86) values from an Upper Proterozoic carbonate succession from Svalbard and East Greenland. This succession, now tectonically separated into three sequences, is thick, relatively continuous, ...