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Showing results for tags 'lourinhã formation'.
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Paper describes a largely complete specimen of Miragaia longicollum discovered in 1959 in Atouguia da Baleia, Peniche, Portugal, consisting of both anterior and posterior portions of the skeleton. https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0224263
A new macronarian sauropod from the Upper Jurassic of Portugal Oceanotitan dantasi . Unfortunately no teeth were described as part of this discovery. Paywalled https://www.tandfonline.com/doi/full/10.1080/02724634.2019.1578782#.XNwhnRbxWYE.twitter A new macronarian sauropod from the Upper Jurassic of Portugal Pedro Mocho ,Rafael Royo-Torres &Francisco Ortega Article: e1578782 | Received 15 Dec 2016, Accepted 10 Jan 2019, Published online: 15 May 201 https://doi.org/10.1080/02724634.2019.1578782
Hi all, I have a tricky tooth ID question. For now it is labeled as Theropod indet. and I guess this is as far as it gets, but I just want to check if someone else gets a Dromaeosaurid vibe =) It was found in the Lourinhã Formation. Crown height is 6mm. Denticles per 1mm are 9 mesial and 7 distal. Mesial denticles are also much shorter, and the mesial carina ends at about half way from the anterior of the tooth (maybe 2/3 considering the tip is missing). Distal denticles are slightly hooked towards the anterior. I went through quite some papers from similar aged formations in Portugal/Spain and Morrison formation but without any real luck: Zinke 1998 describes possible Dromaeosaurid teeth that might fit the bill regarding denticle density and roughly TCH/FABL/BW when scaled to this tooth (6.09mm/3.61mm/1.95mm). Any help is highly appreciated!
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