He argued that the &quot;boundaries&quot; between suites of organisms from different strata were caused by past catastrophic events such as floods or drought that may have destroyed many species in an area at once.
(floods or drought; may have destroyed; many species; L:in an area; T:at once) (He; argued; that the &quot;boundaries&quot; between suites of organisms from different strata were caused by past catastrophic events such as floods or drought) Context(He argued,List([0, 9))):(boundaries&quot; were caused; by past catastrophic events such as floods or drought; T:between suites of organisms from different strata)
He argued,List([0, 9))
floods or drought He boundaries&quot
may have destroyed argued were caused
many species L:in an area T:at once
that the &quot;boundaries&quot between suites of organisms from different strata were caused by past catastrophic events such as floods or drought
by past catastrophic events such as floods or drought T:between suites of organisms from different strata