Assertion: mass extinction | /r/HasProperty | cited as causes of mass extinctions
Facets:
value: most often
type: DEGREE
Source sentences:
text: Macleod (2001) summarized the relationship between mass extinctions and events which are most often cited as causes of mass extinctions, using data from Courtillot et al.
text: Macleod (2001) summarized the relationship between mass extinctions and events which are most often cited as causes of mass extinctions, using data from Courtillot et al.