RSFTSTYL|+,Biometrika (WUR_2)Mathematics `This style is for the journal Biometrika published by Oxford University Press. Author guidelines available at: http://www.oxfordjournals.org/biomet/for_authors/index.html!X"(#$%&"(#*$%& !@pqrstxTyzd{  , !|  & !xTydzd{  , !|  & !u@}~, et al.vw ---!"@pqrstxTyzd{  , !|  & !xTydzd{  , !|  & !u@}~, et al.vw ---!#p`t    !   (! ). !t    . !  D  !0"(#$%&h   t   ,! t   .! dTt    !   (! ). !  D  . !0"(#$%&h    t   : ! h    t   .! |t    !   (!  ) !t    . !x  In: !    0 (ed)^(eds)!t   !   D  , !0"(#$%&   D  , !0"(#$%&t    . !x  pp. ! t    .!H8t    !   (! ). !h   | $ .In! |  $ ,Ed.! | $ pp.! t    ,! t    :! t   .! H8t    !   (! ). !h   | $ .In! |  $ ,Ed.! | $ pp.! t    ,! t    :! t   .! $%'e="normal" font="default" size="100%">Billoski, T.V.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Introduction to Paleontology</s&e(X0  , !213    (!  , !t    )!44pqrstxTyzd{  , !|  & !xXydzd{  , !|$  and !u@}~ et al. vw 5ion><keywords><keyword><style face="normal" font="default" size="100%">Excavation</style></keyword><keyword><style face="normal" font="default" size="100%">Extinction</style></keyword></keywords><date64  -!74  ; !8@}~ et al. 9:;  , !<=A>?@PQZ  , !RSHpqrstxXyzd{  , !|$  and !xXydzd{  , !|$  and !u@}~, et al.vw ---!THpqrstxXyzd{  , !|$  and !xXydzd{  , !|$  and !u@}~, et al.vw ---!UVWY$ Ibid.!$ Ibid.!   `ab<dc, Anonymous!(@ABC `