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Showing results for tags 'jurassic dinosaurs'.
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Some cool Jurassic Dino teeth that are not Morrison Formation
fossilsonwheels posted a topic in General Fossil Discussion
I’ve been slowly working on improving our Jurassic dinosaur fossil collection. One of the major goals has been expanding beyond North America and the Morrison Formation. We recently picked up two fossils that accomplish that goal. Up first we we have a pretty nice sauropod tooth from Madagascar. This is from what is usually referred to as the Isalo III Formation. I believe the Sakahara formation would be the more accurate name given this comes from Andronomamy. This tooth is kind of interesting. It matches the Eusauropoda morphology of a paper published on sauropod teeth from Madagascar. I researched this a bit further to see if I could maybe get it to a family level. This tooth seemed be close to the morphology of the French sauropod Vouivria, which is a basal Brachiosaurid. Based on what I read, Vouivria was described from material that had been assigned to Lapparentosaurus which is what I thought this tooth might be except it doesn’t match the morphology of the Brachiosaurid/Titanosauriformes teeth in the paper. After my brain imploded from trying to figure this out, I decided to just say we have a nice Eusauropoda tooth from Madagascar lol- 8 replies
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Carter and I are starting to slowly begin work on a program that will be about Jurassic era Dinosaurs. We will not do this until the 2020/2021 school year and I am really pretty excited. We decided to stop pursuing other dinosaur fossils (except for a Hell Creek Anky/Nodo lol) so that we can start piecing this together. We have about 10 months to make this happen. Educationally speaking it will be awesome to focus a program on the Jurassic era and show kids what dinosaurs were really running around at this time. This presents some fun challenges for us as collectors. Morrison Formation fossils are harder to find and more expensive so this will be a pretty significant change in how we collect. We can bargain shop to some extent but we will have to get into a higher price range. Carter and I know we have to save our money and be patient. We will also have a much more limited number of sources which I am actually okay with. I really like our primary source for Jurassic stuff. I have to get familiar with this fossil material so I have to find and study whatever publications exist but this is something I really like. We may also take a look at a European Dino or two. I have seen some Sauropod fossils from the UK and some stuff from Portugal that was interesting though pricey. We have yet to hop across the pond for dinos yet but if we are ever going to do that, this would be the program to do it I think. We have a head start on this. We have our nice Diplodocus bone. We have a couple of nice Camarasaurus pieces too. We have a small piece of Stegosaur gular armor. We also have a partial Theropod tooth, sold as Allosaurus but in need of a closer look. It is not a lot of material for sure but we can build from what we have and develop a really solid program I think. Presenting a fairly complete fauna will be hard. The herbivores I am not too worried about. I have a line on a Camptosaurus piece and I am sure we can track down another nice large Sauropod fossil. Dryosaurus is another possibility. The Theropod material is quite intimidating though. Rare and expensive is my first impression. I am not too worried about Allosaurus but beyond that, I think it will be really challenging to find any other fossils in our price range. I think we need fossils from two large bodied and one medium or small theropod to really present a decent picture of the ecosystem. Tall order but I am hopeful we can do it. We have do have a long way to go with this for sure but we made a little progress. Literally speaking we made a tiny bit of progress but it is a pretty cool addition despite the diminutive nature of the fossil We secured ourselves a tiny 2mm Ornithopod tooth that could belong to Nanosaurus. We had asked @Troodon about this one awhile ago and that was his opinion. I finally got around to grabbing it. Nanosaurus is a great dinosaur to include for us because they were tiny and pretty cute. It will represent a great contrast with the giant dinosaurs of this era. Kids will love it. It was also in the bargain category price wise. We may not get to update this for awhile but I thought starting the TFF collection now would be a fun way to celebrate our tiny new fossil.
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Occasionally we see dinosaur material from Portugal for sale, mostly theropod teeth, but I post this because the dinosaurs of the Lourinhã Group are very interesting to those of us that are familiar with the Morrison Formation. Information here may help us identify teeth from the Morisson From an abstract: The Lourinhã and Alcobaça formations (in Portugal), Morrison Formation (in North America) an Tendaguru Beds (in Tanzania) can be compared. These three Late Jurassic areas, dated as Kimmeridgian to Tithonian are similar paleoenvironmentally and faunally. Four dinosaur genera are shared between Portugal and the Morrison (Allosaurus, Torvosaurus, Ceratosaurus and Apatosaurus), as well as all non-avian dinosaur families. Late Jurassic Map Portugal has a high diversity of dinosaurs. The Lourinhã Formation is the most notable unit of the group not only noted for teeth & bones but eggs and trackways. The Alcobaça Formation is also included in the group. Here is a geologic look at westcentral Portugal. The coastline is absolutly beautiful and a challenge to collect. Teeth, tracks and bones are typically found in the boulders making extraction a nightmare. Lourhina Fm.pdf
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