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Showing results for tags 'archosaur'.
Found 14 results
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I buy this tooth from Morrison Formation (Colorado), as a "Goniopholis sp." I think the tooth belong to the family of goniopholididae but not to the genus Goniopholis. The tooth is 0.5 inch.
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Hello dear members, Today I'd like to talk about my latest fieldtrip, to the Late Triassic tracksite of Zone, Lombardy prealps, Italy. However, I'd like to make it clear that it involved no fossil collecting, because of the scientific interest of the site and of italian laws, that prevent (almost) any form of this activity. I know there is the "Fossil sites" section, but I thought that here my post would have reached more people. I apologize in case this is not allowed. Let's not waste any more time! Italy is quite well know for its tracksites, in particular those bearing dinosaur t
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Found these in East Central Arizona. A deep wash has cut through a rock ledge containing lots of the footprints. Still working on trying to get some of the bigger rock slabs hauled out.
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ID requested: Triassic Bull Canyon Formation microfossil teeth (Norian Age)
ziggycardon posted a topic in Fossil ID
Hi! I recently aqcuired quite a lot of "microfossils" to kick off my Triassic collection, as I personally find it one of the most interesting time periods and while I am aware possibly not all of them are ID'd correctly I just wanted to get some nice fossils from this time period regardless of their ID's. All the fossils I acquired are from the Bull Canyon Formation, Dockum Group, San Miguel County, New Mexico, USA (Norian age) But I myself am not very knowledgeable yet in this material as I just started my collection but I am aware that some if not most of the ID's on these fossils -
https://www.eurekalert.org/pub_releases/2019-01/fm-idc012319.php http://blogs.discovermagazine.com/deadthings/2019/01/31/antarctanax/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A DiscoverBlogs (Discover Blogs)
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Hello all, I just picked up this pretty vert and am not quite sure about the ID. The seller advertised it as Coelophysis, but it doesn't seem to be a match. It's from Bull Canyon formation, Quay County, New Mexico (Upper Triassic). It measures 2 1/2". The seller provided good pictures, so I've attached some of those. I can provide more and even take some of my own if needed! Thanks, and hopefully we can figure out an ID on this one!
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Early- and Mid-Cretaceous Archosaur Localities of North-Central Texas Guidebook
Oxytropidoceras posted a topic in Fossil News
Early- and Mid-Cretaceous Archosaur Localities of North-Central Texas. Guidebook for the field trip held October 13, 2015 in conjunction with the 75th Annual Meeting of the Society of Vertebrate Paleontology in Dallas, Texas https://www.researchgate.net/publication/283711331_Early-_and_Mid-Cretaceous_Archosaur_Localities_of_North_Central_Texas https://figshare.com/articles/Early_and_Mid_Cretaceous_Archosaur_Localities_of_North_Central_Texas/1608173 http://chrisnoto.com/publications.html Yours, Paul H.-
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Marz, 2014.HiBioolicrocodilian eggs and eggshell structures..pdf
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Rauisuchians are some of my favorite prehistoric beasts, rather specific but I'm wondering if anyone on here on the forum has any material to show I'd love to see. So far I've been only able to obtain postosuchus teeth and recently begrudgingly missed out on some Batrachotomus kupferzellensis.
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Some publications about the Arlington Archosaur Site by the late Dr. Derek J. Main are: The Arlington Archosaur Site Field Trip Guide 2013 Derek J. Main, Ph. D. University of Texas www.arlingtonarchosaursite.com PDF files at: https://uta.academia.edu/DerekMain https://www.academia.edu/2607656/Arlington_Archosaur_Site_-2013_Field_Trip_Guide Paleoecology & Paleoenvironments of the Woodbine Formation of North Texas: the Arlington Archosaur Site Earthwatch Field Trip GuideSummer 2012 Derek J. Main & Christophe
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junbentaitchis2017vivrity.pdf Don't worry about the quality of the content,the source is reliable(I'm reliably informed)
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Absolute EARLIEST gastrolith presence (Archosaur lineage)?
ErichPryde posted a topic in General Fossil Discussion
First of all, hello to all of you on the Fossil forum- My name is Erik. newbie here, first post. Secondly, I'm exceptionally curious as to what organism in the fossil record has the first confirmed gastrolith (non-exolith) presence. I found and read through Fruitbat's research, and he had some very interesting articles about gastroliths, some of which I've seen, some of which I have not. I feel that Gastroliths are incredibly important to Archosaur evolution because they fulfill much the same role that differentiated teeth for thorough mastication do in mammals. Of course, proving -
Here is another peice of my work, this profile is on the Stegosaurus and once again I would like to see what you all think but keep in mind I kind of wrote this in a biased way, as in I used the theories I think are true without mentioning other ones so Forgive me for that. But hey, At least it's pretty simplified. Stegosaurus is one of the Most well known of all dinosaurs along with the T.rex and the Velociraptor. Despite this very, very, very, few people know what it actually looked and behaved like. For example the Stegosaurus has Sexual Dimorphism which means a difference in t
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I found this tooth while searching my collection of Sussex Wealden, Hastings bone bed. Similar to the small size ornithopod dinosaur Hypsilophodon premaxilla teeth, but this species can be ruled out. It is more similar to the small ornithopod Echinodon, Purbeck beds, Dorset premaxilla teeth. The crown is smooth and asymmetrical. The root curls up at the end, similar to some Iguanodon teeth in original early illustrations of the Iguanodon species. I prepped the tooth out completely from the matrix. Tooth is very small being 5mm long. Can anyone help me with identification of this tooth?
