Abbreviated record for specimen 15383 Basic Information Determination: Myriotheca arnoldi Pfefferkorn Previously: none Type Status: holotype Figured In: Pfefferkorn et al, 1971, p. 15, pl. 6, fig. 4-6 Locality: Will County, Illinois Geologic Unit: Francis Creek Shale Additional Information Images: medium (150 dpi, 50.6KB)large (600 dpi, image not available) Catalog Data: show full record