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CATEGORIES:Department of Earth Sciences Seminars (downtown)
SUMMARY:The Red Queen\, Mars\, living and dying fast and y
 oung: macroevolution in graptoloids - James Crampt
 on\, Victoria University of Wellington
DTSTART;TZID=Europe/London:20241015T120000
DTEND;TZID=Europe/London:20241015T130000
UID:TALK220477AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/220477
DESCRIPTION:This talk will summarize a number of recent studie
 s\, and ongoing research\, based on a remarkable t
 imeseries of evolution and extinction in the grapt
 oloids. This group of organisms was the major comp
 onent of the macrozooplankton during the Ordovicia
 n and Silurian periods\, between approximately 480
  and 420 million years ago. The data reveal eviden
 ce for Milankovitch pacing and diversity dependenc
 e of evolution and extinction rates\, the dominanc
 e of very short-lived\, "ephemeral" species\, and 
 both distinction and continuity between times of "
 background" and mass extinction.  
LOCATION:Department of Earth Sciences\, Tilley Lecture Thea
 tre
CONTACT:Dr Rachael Rhodes
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