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Dead clades walking : Fossil record provides new insights into mass extinctions
Groups of animals that survive an event but never fully recover are more common and long-lasting than expected
Rafinesquina, seen in this close-up shot, was an ancient genus of brachiopod belonging to order Strophomenida. This order survived two mass extinction events, but the second represented a ‘death sentence’ from which they were unable to recover diversity, persisting for another hundred million years as a ‘dead clade walking’ before their eventual extinction.
Image: Provided by Benjamin Barnes Dead clades walking : Fossil record provides new insights into mass extinctions
Matthew Carroll
Planet Earth Report -- Myth of Stephen Hawking to Perfect Storm 14-Times Earth s Greatest Biological Catastrophe dailygalaxy.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from dailygalaxy.com Daily Mail and Mail on Sunday newspapers.
Mar 15, 2021
Jeff Stevens kept bringing energy in empty arena this season
Fans of the Dayton Flyers can’t see the name Scoochie Smith without hearing “Scoooochie Smith!” in their heads.
The same goes for the name Obi Toppin. “Obiiiii Toppppin!” will echo off the walls of UD Arena for years.
Jeff Stevens has immortalized those two memorable names and many more in 21 seasons as the public address announcer at UD Arena. He took over for Charlie Robinson, who had the job for 29 seasons (1971-2000). Robinson replaced John Marschall, who had called games since the days of the UD Fieldhouse, in UD Arena’s second season.