With BRYOZOANS + Anal spines of the Dasciocrinus

Name of the crinoids :
DASCIOCRINUS SPINOBRACHIATUS (Worthen)
APHELECRINUS OWENI (Kirk)

Age: Carbonifère, Mississippien, Chesterian ,Bangor Limestone Formation
Location : Franklin county , Alabama, USA

The calix with arms of the Dasciocinus is 2.8 cm onto a slab of natural matrix that measures 7.5 x 8.5 cm.