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The two sides of a single small chunk of limestone show two very different fossils. One side may be a Receptaculites, and the other I don't recognize. The rock was found on the surface in an area of mixed cobble, formerly an ancient riverbed, so the origin is uncertain. Most of the old limestones in the area are Devonian or Carboniferous. The stone's about 4 cm long. The area it was found was also inhabited by the Sinagua people, who abandoned the site about 700 years ago. They could have transported the stone from somewhere or traded for it? Any ideas what th
I run across these guys frequently in the Mississippian Redwall Limestones around Arizona's Verde Valley. They are generally accompanied by lots of Crinoids and solitary Rugose Corals. They're always this oval shape with segmented structure. They look like an isopod, to me, but could be some other crustacean. Any help out there for the identification of these "bugs?"
Doug Von Gausig posted a topic in Fossil IDI believe this is a Bryozoan. It is about 14x16mm (about the size of a dime), and is on Martin formation Devonian dolomite from the Verde Valley in Arizona. Any opinions will be appreciated!
Doug Von Gausig posted a topic in Fossil IDThis is a shot of a conglomeration of fossils in mudstone from the Verde Formation of central Arizona. This formation is a graben of jumbled types -- sandstone, limestone, mudstone, basalt, etc. These were in layers along a dry streambed. Any assistance with what they are would be appreciated. I'm assuming they are Pennsylvanian period, given the lack of crinoids. Locally, the redwall limestone is Mississippian, and contains abundant crinoids. The Martin limestones are Devonian, and have few fossils. I assume the pictured fossils are more recent than either of these. I'm especially curious abo