Abbreviated record for specimen 15692 Basic Information Determination: Calamostachys Schimper Previously: none Type Status: Figured In: Langford, 1958, p. 52, fig. 75Langford, 1963, p. 139, fig. 681 Locality: Will County, Illinois Geologic Unit: Francis Creek Shale Additional Information Images: medium (150 dpi, image not available)large (600 dpi, image not available) Catalog Data: show full record