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Showing results for tags 'metacoceras'.
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From the album: Missouri Ammonoids, Nautiloids and Gastropods
Found this beautiful specimen the other day while searching in the rock pile attributed to the Iola Formation. More specifically, this one was most likely found in the Paola limestone member.- 3 comments
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- cephalopod
- cephalopods
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So most of what I find is Metacoceras or Pseudorthoceras, two very common cephalopods locally. I've found a few Solenochilus, but they are different enough that I know what I found right away. This specimen was discovered as a body chamber. I thought Metacoceras, because, why not? Anything of this shape usually is. After some moderate prep, I revealed some more body chamber, but not any suture marks. The venter is oddly shaped as well, with a shallow U shape. It might be crushed, so I didn't pay it too much mind. I also discovered that the body chamber is much larger than any Metacoceras specimen I have found to date. In viewing the paper A NAUTILOID CEPHALOPOD FAUNA FROM THE PENNSYLVANIAN WINTERSET LIMESTONE OF JACKSON COUNTY, MISSOURI (full paper), I found plate 5 which features Domatoceras. They are known to exist here, but I've never found anything definitive. Here is the plate from the article: Here is a Metacoceras (CG-0071) on the left, and the specimen in question (CG-0068) on the right. Here is the venter of CG-0068 showing the two ridges marked with arrows. I feel these are similar to the ridges shown in Figure 2 of Plate 5 And that is that. Any cephalopod people have an opinion? I could prep it more, it's just at the labor intensive micro prepping state right now with solid cement like limestone overlaying it. One more photo of it for some additional context:
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- brush creek limestone
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A Very Good Problem to have in the Carboniferous
fossilized6s posted a topic in Fossil Hunting Trips
In the last two weeks i have found two new very promising fossil sites. They are on private land that i have permission to be on. And please don't ask where. There are so many things that i have to leave many behind. I hope i am lucky enough to find something truly amazing from these sites and share them with science and ultimately all of us. I believe this to be the first Orthacanthus sp. specimen ever found in this area of Illinois. It would be pretty neat to add this awesome predator to this fauna. As found: After prep: On the same trip i found a bone block associated with crinoids, a Metacoceras, a shark denticle, possible shark cartilage and what i believe are tetrapod bones. Please feel free and let me know what you guys think about the bones. A deep water environment with tetrapod material???? This strangely shaped bone has a thin outer layer on the "ornamental" end, almost like tooth enamel, but it's not thick enough. Continued..........- 27 replies
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- black shale
- carboniferous
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