Abbreviated record for specimen 15693 Basic Information Determination: Asterotheca arborescens Schlotheim Previously: none Type Status: Figured In: Langford, 1958, p. 159, fig. 269Langford, 1963, p. 199, fig. 793 Locality: Will County, Illinois Geologic Unit: Francis Creek Shale Additional Information Images: medium (150 dpi, 259.6KB)large (600 dpi, image not available) Catalog Data: show full record