Complex sentence: Dayle and Barry being eclipsed by Richard, who took 431 test wickets--at the time a world record--and 1490 first class wickets and finished with a test batting average of 27.16.
Split into simpler sentences: Dayle and Barry were eclipsed by Richard, who took 431 test wickets--a world record at the time--and 1490 first class wickets. He finished with a test batting average of 27.16.