Kinderhookian (= Tournaisian), Mississippian, Early Carboniferous [details]
Lodgepole Formation and Brush Canyon Member, Henderson Canyon Formation [details]
South wall of Strawberry Creek, Wyoming, USA and Beirdneau Hollow, Logan Canyon, Utah, USA [details]
HT: USNM 487247 (from Strawberry Creek, Wyoming, USA); PT: USNM 487248, 487249 [details]