ziggycardon Posted October 7, 2020 Share Posted October 7, 2020 Hi everyone, I am currently thinking about buying this Psittacosaurus femur, as it would be a nice and a bit of a rarer addition to my dinosaur collection. The piece is said to have been found in the Yixian Formation, Liaoning Province, China and it measures 14,5 cm And while it looks like a genuine and okay bone to me (with perhaps some composite elements like the little protruding part which is typical of Psittacosaurs) I am not really an expert on Chinese dinosaur fossils. The bone looks like the femur on the replica skeleton I own, but I am not 100 % sure whether this is actually the real deal or not. And if it is real, if it does belong to Psittacosaur or just another animal? @Troodon & @LordTrilobite what are your opinions on the bone? Interested in all things paleontology, geology, zoology, evolution, natural history and science! Professional exotic pet keeper, huge fantasy geek, explorer of the microfossil realm, member of the BVP (Belgian Association for Paleontology), Volunteer prepper at Oertijdmuseum Boxtel. View my collection topic here: The Growing Collection of Ziggycardon My animal collection at the "Members pet" topic Ziggycardon's exploration of the microfossil realm Trips to Eben Emael (Maastrichtian of Belgium) My latest fossil hunt Next project will be a dedicated prepping space. "A mind needs books as a sword needs a whetstone, if it is to keep its edge." - Tyrion Lannister Link to comment Share on other sites More sharing options...
LordTrilobite Posted October 7, 2020 Share Posted October 7, 2020 Very clearly "repaired". It wouldn't surprise me if this is a composite. Other than that, the morphology is consistent with a Psittacosaurus femur. I think you have the same replica Psittacosaurus that I have. The femur is very similar. But yeah, I would pass on this one. There's better examples out there. 1 Olof Moleman AKA Lord Trilobite Link to comment Share on other sites More sharing options...
Troodon Posted October 7, 2020 Share Posted October 7, 2020 Consistent with a Psittacosaurs. Lots of visible repairs most likely composited. 4th trochanter not correct in your specimen. Example to compare against A Ceratopsian dinosaur Psittacosaurus sibiricus from the Early Cretaceous of West Siberia, Russia and its phylogenetic relationships ARTICLE in JOURNAL OF SYSTEMATIC PALAEONTOLOGY · NOVEMBER 2006 2 Link to comment Share on other sites More sharing options...
ziggycardon Posted October 7, 2020 Author Share Posted October 7, 2020 @LordTrilobite & @Troodon Thank you for the quick response and for lending me your expertise! I think I'll sleep a night over it before I make an decision on buying or not. Any educated guess on how much of the piece might be composite? Interested in all things paleontology, geology, zoology, evolution, natural history and science! Professional exotic pet keeper, huge fantasy geek, explorer of the microfossil realm, member of the BVP (Belgian Association for Paleontology), Volunteer prepper at Oertijdmuseum Boxtel. View my collection topic here: The Growing Collection of Ziggycardon My animal collection at the "Members pet" topic Ziggycardon's exploration of the microfossil realm Trips to Eben Emael (Maastrichtian of Belgium) My latest fossil hunt Next project will be a dedicated prepping space. "A mind needs books as a sword needs a whetstone, if it is to keep its edge." - Tyrion Lannister Link to comment Share on other sites More sharing options...
Troodon Posted October 7, 2020 Share Posted October 7, 2020 Hard to say but everyplace you see a matrix joint and there are many its a potential composite and most likely the 4th trochanter 1 Link to comment Share on other sites More sharing options...
ziggycardon Posted October 7, 2020 Author Share Posted October 7, 2020 11 minutes ago, Troodon said: Hard to say but everyplace you see a matrix joint and there are many its a potential composite and most likely the 4th trochanter The 4th trochanter was indeed the protruding part I thought was added. But yes, it is like you say every where you can see matrix in the bone can mean that 2 different chunks are glued together. I think I am going to pass on this one. Thank you for the help! Interested in all things paleontology, geology, zoology, evolution, natural history and science! Professional exotic pet keeper, huge fantasy geek, explorer of the microfossil realm, member of the BVP (Belgian Association for Paleontology), Volunteer prepper at Oertijdmuseum Boxtel. View my collection topic here: The Growing Collection of Ziggycardon My animal collection at the "Members pet" topic Ziggycardon's exploration of the microfossil realm Trips to Eben Emael (Maastrichtian of Belgium) My latest fossil hunt Next project will be a dedicated prepping space. "A mind needs books as a sword needs a whetstone, if it is to keep its edge." - Tyrion Lannister Link to comment Share on other sites More sharing options...
sneakyelf Posted October 8, 2020 Share Posted October 8, 2020 Keep in mind that it has been illegal to export many Chinese fossils making access to them considerably more difficult - meaning new buyers are stuck trying to find bones that were exported years ago. My counterargument to above is sometimes you have to buy a "rough" one for rarer things and hope that some time in the future you'll find a better one - this isn't a ubiquitous shark tooth. This is a 100mya dino femur - the world doesn't have many to offer. Here's a photo of three different psittacosaurus femurs of varying quality for reference. 1 Link to comment Share on other sites More sharing options...
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