Abbreviated record for specimen 15312

	Basic Information Determination: Mariopteris muricata Schlotheim Previously: none  Type Status:   Figured In: Langford, 1958, p. 258, fig. 469  Locality: Will County, Illinois Geologic Unit: Francis Creek Shale   Additional Information Images: medium (150 dpi, 53.3KB) large (600 dpi, image not available) Catalog Data: show full record