Offered above is a $x$ inch matrix with a two (2) Pterotocrinus, a Hytranecrinus and circa 20 Camptocrinus calyces and lots of stems, Criinoids of the Mississippian Period found in the Chesterian Zone of the Bangor Limestone Formation (ca 325,000,000 yrs old) in northern Alabama. This item takes up 20% of the space in the USPS Small Flat Rate box so you have room for more without added postage. Remember I do combined shipping using USPS Flat Rate boxes where if it fits it ships at no added postage. So take up to 30 days to shop many sales to fill your box and pay for nothing till time for shipping. When ready ask me for your combined shipping invoice. Never pay without that invoice if you have purcvhased multiple item I have found a wonderful resource for collectors who wish to learn identify fossils of the Bangor Limestone Formation such as I offer. \"Fossil Identification Guide for the Tennessee Valley\" is a two volume ebook available only online at Amazon and Barnes and Noble. The fossil photos are quite detailed. Check them out. It is also offered as a color print edition titled \"Fossils of the Tennessee Valley\" at the sme locations.

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