*0011680167
*008961024s1980    xx#           000 0 eng
*019  $bk
*08230$a551.7
*100  $aCooper, Barry J.$_169338000
*245  $aToward an improved Silurian conodont biostratigraphy
*300  $aS.209-227
*773  $tLethaia$gVol.13, no.3 (1980)$x0024-1164$w(NO-LaBS)5212(tnr)
*8564 $uhttps://doi.org/10.1111/j.1502-3931.1980.tb00634.x
*999  $z9600034498$anorart:9600034498
^