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Showing results for tags 'weno formation'.
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I found these coral fossils in the Lower Cretaceous Weno Formation (or possible Paw Paw Fm), in northern Grayson County in northern Texas. The rock is a silty ironstone with lots of marine shells. The corals are about 5mm across and about 1-1.5mm thick. I think that they might be Microbacia sp. Has anyone found similar corals in the Weno Fm or other areas of similar age? Any idea of species? Does anyone know researchers that are working on Cretaceous corals and would be interested in this find? See: North American Upper Cretaceous Corals of the Genus Micrabacia by Stephenson for descriptions of more recent Micrabacia corals. Thanks for any help. PS How do I move this post to the proper "Fossil ID" forum?
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I'm posting for a friend who purchased this "cidarid" from a collector that found it recently at a locality in the Weno formation (c. 98-99 mya) in Tarrant county, Texas. I'm thinking it's "Phyllacanthus" (and not "Stereocidaris") just going off pictures in books but I'd like some opinions from actual knowlegable people on which this is. "Phyllacanthus" and "Stereocidaris" are the two genuses most associated with the big cidarids around here but if there's other possibilities I'd like to know. Can someone list the easy-to-see differences between those two genuses?
