Ammonoidea

Geological context: Late Cretaceous, Fox Hills Fm. Collection locality: from below ledge-forming concretionary layer in lower part of massive sand, walls, heads & side gullies of NW-flowing tributary of Spring Creek, 1.25 mi NE of Wasserberger ranch house, & 5 mi SW of Redbird; from SW NE SE to NE NW SE sec12T37N,R63W, Niobrara County, Wyoming, USA. Collected by Karl M. Waage, Neil H. Landman, Russell D. White, Marcus Key, 1985. IP number 355143; lot count 1; accn=IPA.07132; associatedwith=on same slab: IP.355144,IP.355145,IP.355146,IP.355149,IP.355152,IP.355153,IP.355155,IP.355156,IP.355157,IP.355159,IP.355160,IP.355163,IP.355164,IP.355166,IP.355168,IP.355169,IP.355171,IP.355147,IP.355148,IP.355150,IP.355151,IP.355154,IP.355158,IP.355161,IP.355162,IP.355165,IP.355167,IP.355170,IP.355172,IP.355173,IP.355174.