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Showing results for tags 'geological'.
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Recently I took a trip to a new spot in the Maastrichtian of Maryland. I did not manage to recover too much vertebrate material, though I have been quite intrigued by one piece that I collected. The main question regarding this piece is whether it is bone or whether it is simply a suggestively shaped rock. If it does turn out to be bone, would it be possible to determine what it may have come from? The main marine reptiles that are recovered from these deposits are mosasaur and marine turtle. A few photographs of the specimen in question. If better photographs are needed/photographs from a different angle, I would be more than happy to attach some to this thread. Thanks in advance for all suggestions and opinions!
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I’m very curious about these “ripple marks” that I have seen posted a few times on the forum. From what little research I have been able to do (so far...) they seem to be caused by wind or water erosion of the rock. However, there is mention of them possibly being fossilized rippled sediment from the floor of a body of water. So... are these geological erosions or some type of fossilized evidence of water movement? I can see how the erosion would work, but wouldn’t the sediment be compressed during lithification/fossilization and destroy the details if it was from a body of water millions of years old? Ripple Marks Mention of Fossilization
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- ripple marks
- ripple
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Finally got around to my bucket of unwashed rocks and discovered this. Don't know what to make of it, it's either Cretaceous or from QAL. It was so pretty wet I put a flat clear coat on the top side to bring out contrasting colors, bottom and side are natural. Kinda looks bonyish or turtlish heck I don't know!
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- red stone
- north texas
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I am just stumped on these. All came from banks of canal at the bottom of a hill. These are all on the shallow level side of canal amongst sandstone, and they are everywhere. On other side of canal a little further down it's grey clay with big red concretions and fossils shown but these aren't present. These whatever they are aren't very heavy but hard like limestone. Only found one with inclusion, and broke one open and it's smooth. Included pictures of both. They kinda stick to tongue.
- 12 replies
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- eagle ford
- cretaceous
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KYANA Geological Society Annual Mineral, Gem, and Fossil Show
FossilNerd posted a topic in General Fossil Discussion
The KYANA Geological Society is hosting their annual mineral, gem, and fossil show next weekend (Nov. 22-24). I attended last year and it is a small, but fun event. I’m not sure which day I will be there, but I plan to take the family. Just passing along the information in case anyone is in the Louisville area and would like to attend. If you can’t make it, don’t worry, I will come back with a full trip report. http://www.kyanageo.org/showflier.htm- 28 replies
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This came in a big box of mixed fossils. This is an orphan without a label or bag. It looks interesting, like a cross-section of something in the rock matrix. The object is circular in profile and cone or tooth shaped. There appears to be more than one of them, but the other is still partially obscured by matrix. Is this a mineralized fossil of some sort, or is this just a strange geological specimen that got mixed in? Could this be some kind of stromatolite? I wish I had some locality info on it, but I don't. Any help would be appreciated.
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I’m gonna need some help on this one... I’m not even sure whether it’s a fossil or just geological. Found at Sugar Creek in Crawfordsville, Indiana
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Found this piece while digging into the hillside behind the house near lake Wister in Southeast Oklahoma. The area is primarily Pennsylvanian and I have found some beautiful specimens on the land. There are a lot of limestone and sandstone ledges and outcroppings all over the property. I do t see any tooling marks on the edges so believe the shape is natural but not sure what the texturing is. Any help would be appreciated.
- 11 replies
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- pennsylvanian
- wister ok
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