Troodon Posted September 2, 2015 Share Posted September 2, 2015 The next group of fossils I would like to share are from Allosaurus. This theropod roamed most parts of the Jurassic world and was 30-40 feet in length. One of the first theropods discovered a number of good skeletons have been recovered from the Morrison Formation of the American west. A great resource if you are interested in Allosaurus is the one listed below. It has great plates, of all the bones including hand, feet, verts are shown. Its only $11, cheap for what you get. Allosaurus fragilis: A revised Osteology by Madsen Bulletin 109, Utah Geological Survey My friend in Canada helped prepare this specimen. The hands of this Theropod are different than T-rex in that it has three digits instead of two. Like the Anzu hand in my earlier post my goal is to put together a hand. Progress has been made just missing a few carpals. Here is a Juvenile Premaxilla. It includes 3 of the 5 teeth, the top part of the nasal process has been restored. 5 2 Link to comment Share on other sites More sharing options...
ZiggieCie Posted September 2, 2015 Share Posted September 2, 2015 Stupid question? Are you with a museum? Link to comment Share on other sites More sharing options...
Troodon Posted September 2, 2015 Author Share Posted September 2, 2015 (edited) Here are a couple of jaw sections with unerupted teeth embedded in them. They are pristine teeth since they never had to work for a living A few of my rooted teeth. On the third tooth you can see the opening where the replacement tooth was forming . This final tooth is huge for Allosaur's, at 3 1/4" and has an additional unidentified theropod tooth in the matrix Edited September 2, 2015 by Troodon 5 1 Link to comment Share on other sites More sharing options...
Troodon Posted September 2, 2015 Author Share Posted September 2, 2015 Finally here are some of the foot digits. I'm saying its an Allosaurus but it could equally be from one of the other large theropods in the Morrison. The first one is probably the most stunning Digits I have ever seen. It shows lots of arthritis Foot Claw Toe Bone If you missed my Jurassic Park: Anzu wyliei post here is a link http://www.thefossilforum.com/ 3 Link to comment Share on other sites More sharing options...
Troodon Posted September 2, 2015 Author Share Posted September 2, 2015 (edited) Stupid question? Are you with a museum? No Edited September 2, 2015 by Troodon Link to comment Share on other sites More sharing options...
-Andy- Posted September 2, 2015 Share Posted September 2, 2015 You have a collection that museums would be jealous of. Looking forward to meeting my fellow Singaporean collectors! Do PM me if you are a Singaporean, or an overseas fossil-collector coming here for a holiday! Link to comment Share on other sites More sharing options...
Mike Pocock Posted September 2, 2015 Share Posted September 2, 2015 Hi Just a question for you, Is the presence of arthritis an indication of age? Regards Mike Link to comment Share on other sites More sharing options...
Troodon Posted September 2, 2015 Author Share Posted September 2, 2015 (edited) Hi Just a question for you, Is the presence of arthritis an indication of age? Regards Mike It is for me every time I move. To address your question the size of this digit indicates that its a mature animal. However arthritis in dinosaurs should be no different than what we see in dogs today, as they age their joints start hurting. Another factor affecting arthritis is injury or disease which would be more prevalent in their environment. Edited September 2, 2015 by Troodon Link to comment Share on other sites More sharing options...
Troodon Posted September 2, 2015 Author Share Posted September 2, 2015 You have a collection that museums would be jealous of. A bit of an overstatement but thanks Link to comment Share on other sites More sharing options...
sseth Posted September 2, 2015 Share Posted September 2, 2015 Awesome collection pieces. _____________________________________ Seth www.fossilshack.com www.americanfossil.com www.fishdig.com Link to comment Share on other sites More sharing options...
PFOOLEY Posted September 3, 2015 Share Posted September 3, 2015 No Ever? "I am glad I shall never be young without wild country to be young in. Of what avail are forty freedoms without a blank spot on the map?" ~Aldo Leopold (1887-1948) New Mexico Museum of Natural History Bulletins Link to comment Share on other sites More sharing options...
Troodon Posted September 3, 2015 Author Share Posted September 3, 2015 Ever? Nope, I vist them Link to comment Share on other sites More sharing options...
Dracorex_hogwartsia Posted September 5, 2015 Share Posted September 5, 2015 Hi Frank, thanks again for taking the time to share some of your collection with us. I could look at dinosaur fossils all day :-) Could you possibly post some pictures of some of your Jurassic herbivore teeth. Thank you! Link to comment Share on other sites More sharing options...
Troodon Posted September 5, 2015 Author Share Posted September 5, 2015 Hi Frank, thanks again for taking the time to share some of your collection with us. I could look at dinosaur fossils all day :-) Could you possibly post some pictures of some of your Jurassic herbivore teeth. Thank you! Cannot forgot those sauropods, I will Link to comment Share on other sites More sharing options...
SilverSoulz Posted October 12, 2015 Share Posted October 12, 2015 I've never seen anything like this before! fantastic collection. Link to comment Share on other sites More sharing options...
PaleoWilliam Posted October 14, 2015 Share Posted October 14, 2015 I literally fell off my chair when I saw these. 1 Link to comment Share on other sites More sharing options...
Troodon Posted October 14, 2015 Author Share Posted October 14, 2015 Thanks guys, hey PaleoWilliam recommend using a seat belt, do not want any injuries with my posts 1 Link to comment Share on other sites More sharing options...
Dracorex_hogwartsia Posted October 29, 2015 Share Posted October 29, 2015 (edited) Here are a couple of jaw sections with unerupted teeth embedded in them. They are pristine teeth since they never had to work for a living Allo jaw1.jpgAllo jaw2.jpg A few of my rooted teeth. On the third tooth you can see the opening where the replacement tooth was forming .Allotooth2.jpgAllotooth4.jpg Allotooth3.jpgAllotooth3a.jpg This final tooth is huge for Allosaur's, at 3 1/4" and has an additional unidentified theropod tooth in the matrix Allotooth1.jpgAllotooth1a.jpg I know you have a huge collection with many beautiful teeth but I think of all the pictures you've posted, the single isolated Allosaurus tooth in the jaw section is about the most perfect looking tooth I think I have seen. Between the enamel and the serrations do you have another tooth that you think is more perfect than that one? Edited October 29, 2015 by Dracorex_hogwartsia 1 Link to comment Share on other sites More sharing options...
Troodon Posted October 29, 2015 Author Share Posted October 29, 2015 Indeed one of my favorites with perfect enamel. That tooth has to be the top one simply because it was never exposed to elements "used" and fossilized perfectly in its cocoon the jaw. Another contender is a brown Torvosaurus I just posted under Morrison Formation. 1 Link to comment Share on other sites More sharing options...
Mark89 Posted October 29, 2015 Share Posted October 29, 2015 Is that an authentic allosaurus skeleton or a reproduction? Sorry if that's a silly question Link to comment Share on other sites More sharing options...
Troodon Posted October 29, 2015 Author Share Posted October 29, 2015 Not a silly question its all real and was sold to a museum. Link to comment Share on other sites More sharing options...
Jaimin013 Posted July 23, 2018 Share Posted July 23, 2018 amazing teeth. Wish i could own an allosaurus that looks like this. one day! Link to comment Share on other sites More sharing options...
Troodon Posted July 23, 2018 Author Share Posted July 23, 2018 Thanks, Im sure you will. Link to comment Share on other sites More sharing options...
Flx Posted July 27, 2018 Share Posted July 27, 2018 I find it interesting that in the same jaw section the color of the teeth can be quite different (black/brown). Link to comment Share on other sites More sharing options...
Troodon Posted July 27, 2018 Author Share Posted July 27, 2018 32 minutes ago, Flx said: I find it interesting that in the same jaw section the color of the teeth can be quite different (black/brown). Yes that is interesting, all about what they were in contact with during the mineralization process. Link to comment Share on other sites More sharing options...
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