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Found 9 results

  1. BrachioPlod

    Rico Formation Marine Mysteries

    Floated a section of the San Juan River near Mexican Hat, Utah. Many layers of limestone associated with the monocline of Raplee Ridge. Many fun finds including assorted crinoids, bryozoans, some cool red Spiriferida clams. But, found a couple of things that are mysterious to me. Maybe someone here can help. Thing 1: Alternating ovoid shapes, either cupped or eroding to cups. Each ovoid anout 3cm across. Pic 1 (oops duplicate), 2 Things 2: Thin-shelled polyps? (Not sure what to call them.) The shell shape is about 8cm in length and graduates from red to grey. Seems like a cross section. In other places there were some unconsolidated messy heaps of the red parts eroding out. We first thought they were brachiopod fragments, but couldn't find enough distinguishing features to confirm. Pic 3, 4 Things 1 and 2 were in the same thicker 2 meter thick deposit, but maybe not in the same thinner inner layer. (I forgot to check.) Crinoid pieces were fairly pervasive throughout the thicker layer. Please let me know if you know. --Greg
  2. JIMMFinsman

    Remnants of some sea creatures?

    On south Delaware beaches. This rock has some sort of white remnant. Maybe some shell creature from long ago?
  3. Rob Lilieholm

    Cretaceous limestone formation

    A neighbor clearing cedar (actually junipers) in Boerne, central Texas, found this odd geological formation. It's Cretaceous limestone, in an area of many caves. It looks like erosion to me, but wanted to get some insight from y'all. Thanks!
  4. Plant impressions i found in material from the Coleraine formation of Northern Minnesota, which dates to 100-90mya, i confirmed with a paleontologist that these are first known plant impressions ever found up here which has me excited but neither of us know anymore than that theyre plant impressions, can anyone here maybe give more specific information from my pictures? i hope these pictures are good enough, i donated it for further study so I can’t get more. Even if you can’t ID them i still want to know what you guys think!
  5. NatSanders

    Help with ID please

    Hi, my family stumbled across these (and hundreds of others like them) along a creek bank. Would love and appreciate some help identifying them.
  6. Hello! Here’s an interesting rock I found in Connecticut. It was part of an area of landscape stones that had been brought in from elsewhere (I think it’s probably from somewhere in the state, though, given all the geological variety there). I see the impressions of shells and what I think are crinoid fragments. I’m wondering if anyone can provide a more specific ID on any of those or a guess as to the age of the rock? It’s about 5 and 1/2 inches or 14 and 1/2 centimeters long, to give a sense of scale. Thanks! Side 1 Side 2 Side 1 details Side 2 details
  7. FlirtsWithChert

    Is this a fossil?

    Please look at all the images. If not a fossil, could this be an artifact?
  8. Pareidoliajim

    Fossil(?) ID

    Hi all. Back again with a couple of items, which hopefully is more straightforward and recognizable than the previous items I've submitted. Here are some:
  9. wingnut

    Oval sandstone impressions ID?

    I know nothing about fossils, but these shapes don't appear to be the result of geological activity. They are simple oval outlines with central lines on the long axis. They are about 8" to 10" long. They are on the shore of Cabbage Island, off the southern tip of Saturna Island, BC. Research on the Web has been unsuccessful. I'd be thrilled to find out what they are.
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