Phelopteria linguaeformis

Geological context: Late Cretaceous, Fox Hills Fm, Timber Lake Mbr. Collection locality: float and in place, includes many concs., from Sphenodiscus Layer up through CAZ, road cut and adjacent outcrops along W side of SD Rt. 63, from High Elk Hill to point .5 mi N, & between 5.5 and 6 mi S of intersection with US Rt. 212, High Elk Hill, 6 mi SSW of Eagle Butte village, Ziebach County, South Dakota, USA. Collected by Karl M. Waage, 1940/1941. IP number 312668; lot count 1; taphonomy=concretion; accn=IPA.07048; associatedwith=on same slab: IP.312668,IP.312693,IP.312692,IP.312691,IP.312690,IP.312689,IP.312673,IP.312674,IP.312675,IP.312677,IP.312681,IP.312684,IP.312685,IP.312686,IP.312687,IP.312671,IP.312670,IP.312669,IP.312697,IP.312696,IP.312695,IP.312694,IP.312672,IP.312676,IP.312678,IP.312679,IP.312680,IP.312682,IP.312683,IP.312688.