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Showing results for tags 'sail'.
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Hello! I am not very knowledgeable about fossils and I am having trouble. I need your help. Do you think this fossil is a spinosaurus neural spine?
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A brief and interesting blog by Scott Hartman about the shape of the sail with Spinosaurus. https://www.skeletaldrawing.com/home/the-road-to-spinosaurus-ii-known-unknowns11252020
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I'm looking for a little help identifying this bone from the Kem Kem Beds. It looks to part of a vertebra - it's almost 6 inches long so I immediately thought that narrows it down to being a partial Spinosaurid or Charcharodontosaurus vertebra. After spending ages looking through previous post and searching for detailed pictures of vertebrae, I came to the conclusion it belongs to a Spinosaurid (Spinosaurus or Sigilmassasaurus) because the shape just looks wrong for Carch (although there isn't much to go off for Carch vertebrae). Just looking for some input as to whether I'm correct as I know some members are far more familiar with Kem Kem bones. Would you say this looks like a partial Spino vertebra or is it far too fragmentary to say?
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Just wondering on this guy.... The sail seems to be 100% vertical which would mean it was at or very near the center of mass. Since there is only one sail vert that should sit completely vertical and the others showing a tilt I'm curious what you all thought of this specimen.
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From the album: Permian era fossils
Very small fragments of dimetrodons sail spines. From the lower Permian Texas Red Beds, Archer city formation in Archer county -
Hey everyone, this is for anything Sphenacodont--dimetrodon, or otherwise. Collections/pictures/discussions/whatever. This is the splinter thread off of the sphenacodont collections thread, so if anyone would like to bring over anything from the other thread, please feel free. I'm going to bring over some interesting posted info that covered different topics, and with links to interesting and useful info. *some discussions covering other things and animals in relation to sphenacodonts is perfectly fine. For instance, spinosaurus, Permian topics, apex predators, or whatever. As long as it has some relation. Side-tracking is fine, just bring it back home before too long, please. Here's a link to the previous thread. It would be greatly appreciated if you post pictures of any dimetrodon/sphenacodont fossil material you have:)
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Ok, so this is supposed to be a spinosaurus vert, one with part of the sail. At first glance it seems perfect, but upon further study, while trying to place it on spinosaurus skeletons, it doesn't seem to match any exactly. For one thing, spinosaurus sails, at least in the relatively insignificant amount of individuals on display, sail bones that don't go any higher than this one(it appears this is a fully intact sail vert), don't seem to get as wide. And the ones that do, then continue up and get thinner. There ARE similar shaped "sail" bones, at the transition to the neck, and tail, but those aren't as tall as this one. The main bone itself appears to be from the tail, or rear part of the sail, but....well, anywhere that one part of the bone fits well, doesnt seem to match the rest of it very well. Sadly I can't find any good images of many of each type of vert, and anywhere that has good close up views of verts, only have 1 or 2 of any type, which isn't good enough to come to any sufficient conclusions. spinosaur fossils(specifically verts), seem to be something they work with a lot, so I would be very surprised if along with all the other spinosaurus verts they get in, they would end up with the sail spine of some other animal. And if somehow so, then not realizing it.
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