37 citations · 105 across the 6 of their papers we have counts for
7 papers
Analysis of periodicity of extinction using the 2012 geological time scale
Adrian L. Melott, Richard K. Bambach
Analysis of two independent data sets with increased taxonomic resolution (genera rather than families) using the revised 2012 time scale reveals that an extinction periodicity fir…
Do Periodicities in Extinction -- with Possible Astronomical Connections -- Survive a Revision of the Geological Timescale?
Adrian L. Melott, Richard K. Bambach
A major revision of the geological timescale was published in 2012. We re-examine our past finding of a 27 Myr periodicity in marine extinction rates by re-assigning dates to the e…
A ~60 Myr periodicity is common to marine-87Sr/86Sr, fossil biodiversity, and large-scale sedimentation: what does the periodicity reflect?
Adrian L. Melott, Richard K. Bambach, K. D. Petersen +1
We find that the marine 87Sr/86Sr record shows a significant periodicity of 59.3 \pm 3 Myr. The 87Sr/86Sr record is 171° \pm 12°out of phase with a 62 (\pm 3) Myr periodicity previ…
A ubiquitous ~62 Myr periodic fluctuation superimposed on general trends in fossil biodiversity: II, Evolutionary dynamics associated with periodic fluctuation in marine diversity
Adrian L. Melott, Richard K. Bambach
We investigate evolutionary dynamics related to periodicity fossil biodiversity. Coherent periodic fluctuation in origination/extinction of marine genera that survive <45 million y…
Nemesis Reconsidered
Adrian L. Melott, Richard K. Bambach
The hypothesis of a companion object (Nemesis) orbiting the Sun was motivated by the claim of a terrestrial extinction periodicity, thought to be mediated by comet showers. The orb…
A ubiquitous ~62-Myr periodic fluctuation superimposed on general trends in fossil biodiversity. I. Documentation
Adrian L. Melott, Richard K. Bambach
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…