Zobrazeno 1 - 10
of 144
pro vyhledávání: '"BAMBACH, RICHARD K."'
Autor:
Melott, Adrian L., Bambach, Richard K.
Publikováno v:
Paleobiology 40, 177-196 (2014)
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 first detected by Raup and Sepkoski (1984) for only the post-Paleozoic ac
Externí odkaz:
http://arxiv.org/abs/1310.4712
Autor:
Melott, Adrian L., Bambach, Richard K.
Publikováno v:
ApJ 773, 6 (2013)
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 extinction data used previously. We find that the spectral power at thi
Externí odkaz:
http://arxiv.org/abs/1307.1884
Publikováno v:
Journal of Geology, 120, 217-226 (2012)
We find that the marine 87Sr/86Sr record shows a significant periodicity of 59.3 \pm 3 Myr. The 87Sr/86Sr record is 171{\deg} \pm 12{\deg}out of phase with a 62 (\pm 3) Myr periodicity previously reported in the record of marine-animal diversity. The
Externí odkaz:
http://arxiv.org/abs/1206.1804
Autor:
Melott, Adrian L., Bambach, Richard K.
Publikováno v:
Paleobiology 37:383-408,2011
We investigate evolutionary dynamics related to periodicity fossil biodiversity. Coherent periodic fluctuation in origination/extinction of marine genera that survive <45 million years is the source of an observed ~62 million year periodicity analyze
Externí odkaz:
http://arxiv.org/abs/1011.4496
Autor:
Melott, Adrian L., Bambach, Richard K.
Publikováno v:
Monthly Notices of the Royal Astronomical Society Letters 407, L99-L102 (2010)
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 orbit of a distant companion to the Sun is expected to be perturbed by th
Externí odkaz:
http://arxiv.org/abs/1007.0437
Autor:
Melott, Adrian L., Bambach, Richard K.
Publikováno v:
Paleobiology 37:92,2011
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 anal
Externí odkaz:
http://arxiv.org/abs/1005.4393
Publikováno v:
Paleobiology, 2007 Jan 01. 33(1), 76-97.
Externí odkaz:
https://www.jstor.org/stable/4500139
Publikováno v:
Science, 2005 Jun . 308(5729), 1777-1776.
Externí odkaz:
https://www.jstor.org/stable/3841672
Publikováno v:
Paleobiology, 2004 Oct 01. 30(4), 522-542.
Externí odkaz:
https://www.jstor.org/stable/4096909
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, 2002 May . 99(10), 6854-6859.
Externí odkaz:
https://www.jstor.org/stable/3058756