emeraldcityminerals:Mississippian age Crinoid - Cactocrinus Imperator. From Gilmore City Formation,
emeraldcityminerals:Mississippian age Crinoid - Cactocrinus Imperator. From Gilmore City Formation, Iowa -- source link
#fossil#fossils#crinoid#geology#limestone#mississippian#saffron#science#fossilfriday