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Showing results for tags 'ordovician?'.
Found 11 results
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Any Shenanigans on these Starfish?
jikohr posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hi everyone! I recently acquired these two at a fossil show at a pretty good price. Thing is, I'm not super familiar with starfish and brittle stars. They're Moroccan so I figured there might be some funny business because, Morocco. I suspect three of the arm ends (in the upper left pic they are the upper right and left and lower right arms) on the starfish and the very tips of the brittle star arms, but if anyone sees anywhere else that might be fake or restored or if those areas look okay it be great if they can point it out. Any insight is appreciated as always!
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Any idea what this is? Found it at my usual spot in the Drakes formation. Found in Louisville, Kentucky.
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- drakes formation
- drakesformation
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Here's another unidentified, found it in Northern Kentucky, possibly originated in another location.
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Hello, I have two slabs that I would like ID help with, one is a hash plate with trilobite cephalons and pygidiums, the other has a crinoid calyx/crown. I'm told they were collected in Reynolds County of Illinois, USA. I did some googling and I don't think there is a Reynolds county in Illinois, but there is a Reynolds village in Rock Island/Mercer County Illinois which is what I'm guessing the seller meant. Anyways, assuming this info, the geological map of Illinois suggests that this locality consists of the Tradewater Formation which is Pennsylvanian in age: https://isgs.illinois.edu/content/bedrock-geology-map-illinois The crinoid calyx is small at just 1 cm across not including the very long primaxil spines. From what I've seen, primaxils produced as spines is a feature that seems uncommon in most geological periods but commonly seen in many Pennsylvanian crinoids. So I'm more convinced that the crinoid is Pennsylvanian. On the other hand, the trilobite cephalons (also measuring about 1 cm) look very much like calymene/flexicalymene which are Silurian/Ordovician genera, so I'm a little more doubtful here. Anyways, here are photos. First the crinoid plate: And the trilobite hash: Thank you.
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I got this trilobite and it looks like a Calymenidae. I don't have a formation or age. I'm wondering if anyone recognizes the genus or species, or the formation were it might come from. 1st photo is from the top and 2nd photo is from the bottom. IMG_7475.HEIC IMG_7482.HEIC
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Hello. This is my first post to this forum, so sorry if I get something wrong. I found this rock, among others, in Cooperstown, NY in an exposed hillside. I believe it to be a part of the Moscow Formation. I am completely unsure of what this is. I found many other fossils of things like brachiopods, but this is unlike any of them. There are three of these "things" in total, two next to each other and one at the bottom, not completely there. They're each 1.5 centimeters in length. If someone could ID these for me, I would greatly appreciate it.
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- moscow formation
- new york
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I found this gastropod in creek gravel northeast arkansas southern border of the ozark uplift.It appears to have a operculum [trap door].But it is unlike the common ceratopea.I need help with this fossil.Is it a trap door or a gastropod stuck inside another gastropod?Map is lower ordovician but I find different age fossils in this stream.Thanks.
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- northeast arkansas
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This fossil comes from Northeast Arkansas lower part of the Ozark uplift.Map says Lower Ordovician but don,t thank that is right.An ID would be great.Thanks.
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I bought this out of curiosity and because I think it's rather beautiful. It was sold as a bryozoan which it clearly isn't though you can see why it was. It seems to be a diploporitan echinoderm, showing internal structure of plates (humatipores) and a small area of the external layer with diplopores. The location is given as Tafilalet region, Erfoud area, Anti-Atlas Mountains. My questions are: 1) is it Devonian (as sold) or perhaps Ordovician? Both are possible for the area - I've read that Devonian diploporitans occur in Morocco. These would be sphaeronitidae - the only group to survive into the Devonian. 2) Has anyone come across anything similar from Morocco, or indeed elsewhere, and can you narrow down the ID? Back surface, showing that it consists of articulated plates (these are the same plates as the other side, it's not a compressed hollow specimen). patch of diplopores: Ramifying humatipore respiratory structures: Closeup of plates showing pustular ornament:
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- devonian?
- diplporitan
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Here is a rock that I have had in my basement since summer. It has finally made it to Forum members to voice their opinion on. I know it is NOT a rugosa coral (a joke for those who saw my previous ID request). I am thinking possibly a stromatolite? Or because of the karst topography in the region, it may be a type of flowstone from a cave. Or maybe one of those rocks to put out in the garden. The bottom of the specimen: The top: Side views:
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- karst cave rock?
- northern iowa
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My fossil fascination began about 4 years ago, so I may be a little further along the learning curve than a few of our members. Let me offer this sound advise to all newbies to fossil hunting/ collecting. LABEL your finds with as much detail as one can. I guarantee your memory will NOT be good enough 4 years later and you will end up suffering some of the frustrations that I have experienced with some of my finds. Here are a few items that I am asking identification on simply because I did not label. They were in a very small box and my only written words about them was "tiny fossils". I can not even think of where I collected these at or whether they were gifted to me. I am suspicious that it was Ordovician rock though. So with your help and the confidence I have in our Forum members, I expect the genus, species, and exact road cut that I found these at can be given by 5 pm tonight. Kidding aside, any tidbit of advice is truly appreciated. Mike P.S. For you newbies, ALWAYS include size when posting items for ID, something I always forget. These items are about dime size.
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