Declining Volatility, a General Property of Disparate Systems: From Fossils, to Stocks, to the Stars
, 2013 There may be structural principles pertaining to the general behavior of systems that lead to similarities in a variety of different contexts. Classic examples include the descriptive power of fractals, the importance of surface area to volume ...
ADRAIN +72 more
core +1 more source
Climate Change and invasibility of the Antarctic benthos [PDF]
, 2007 Benthic communities living in shallow-shelf habitats in Antarctica (<100-m depth) are archaic in their structure and function. Modern predators, including fast-moving, durophagous (skeleton-crushing) bony fish, sharks, and crabs, are rare or absent ...
A Brandt +62 more
core +1 more source
Dynamics of clade diversification on the morphological hypercube
, 1998 Understanding the relationship between taxonomic and morphological changes is important in identifying the reasons for accelerated morphological diversification early in the history of animal phyla.
Erwin D. H. +3 more
core +3 more sources
Tubular microfossils from ∼2.8 to 2.7Ga-old lacustrine deposits of South Africa: A sign for early origin of eukaryotes? [PDF]
, 2016 Unequivocal evidence for Archean eukaryotic life has been long sought for and is a matter of lively debate. In the absence of unambiguous fossils this debate has focused on biogeochemical signatures and molecular phylogenies.
Altermann, Wladyslaw +3 more
core +2 more sources
Punctuated equilibrium as the default mode of evolution of large populations on fitness landscapes dominated by saddle points in the weak-mutation limit [PDF]
arXiv, 2020 Punctuated equilibrium is a mode of evolution in which phenetic change occurs in rapid bursts that are separated by much longer intervals of stasis during which mutations accumulate but no major phenotypic change occurs. Punctuated equilibrium has been originally proposed within the framework of paleobiology, to explain the lack of transitional forms ...
arxiv
Biological implications of high-energy cosmic ray induced muon flux in the extragalactic shock model
, 2011 A ~ 62 My periodicity in fossil biodiversity has been observed in independent studies of paleontology databases over ~0.5Gy. The period and phase of this biodiversity cycle coincides with the oscillation of our solar system normal to the galactic disk ...
Adrian L. Melott +29 more
core +1 more source
Scale and structure of time-averaging (age mixing) in terrestrial gastropod assemblages from Quaternary eolian deposits of the eastern Canary Islands [PDF]
, 2007 Quantitative estimates of time-averaging (age mixing) in gastropod shell accumulations from Quaternary (the late Pleistocene and Holocene) eolian deposits of Canary Islands were obtained by direct dating of individual gastropods obtained from ...
Torres Pérez-Hidalgo, Trinidad José
core +2 more sources
A Problem in Paleobiology [PDF]
arXiv, 2002 We present a stochastic model for the size of a taxon in paleobiology, in which we allow for the evolution of new taxon members, and both individual and catastrophic extinction events. The model uses ideas from the theory of birth and death processes.
arxiv
A ubiquitous ~62-Myr periodic fluctuation superimposed on general trends in fossil biodiversity. I. Documentation [PDF]
Paleobiology 37:92,2011, 2010 We use Fourier analysis and related techniques to investigate the question of periodicities in fossil biodiversity. These techniques are able to identify cycles superimposed on the long-term trends of the Phanerozoic. We review prior results and analyze data previously reduced and published.
arxiv
Decoupling of morphological disparity and taxic diversity during the adaptive radiation of anomodont therapsids [PDF]
, 2013 Adaptive radiations are central to macroevolutionary theory. Whether triggered by acquisition of new traits or ecological opportunities arising from mass extinctions, it is debated whether adaptive radiations are marked by initial expansion of taxic ...
Anderson MJ +7 more
core +1 more source