Graptolites are recorded for the first time from the Lower Elton Formation
of Shadwell Quarry, Wenlock Edge, Shropshire. The presence of Colonograptus
colonus (Barrande) indicates that the formation here may be assigned to th
e lowermost Ludlow, either the nilssoni or lower scanicus graptolite biozon
e. (C) 1998 John Wiley & Sons, Ltd.