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Last Spring Break I took a fossil hunting trip to the Late Cretaceous Cerro del Pueblo formation of Coahuila, Mexico. Found a lot of cool stuff, including partial tyrannosaurid teeth, a partial hadrosaur tooth, a bunch of turtle carapace pieces, a croc vert, a lot of Ankylosaurian osteoderms, tons of freshwater and marine gastropods, and much more. This piece stands out, because I have been unable to ID it. My best guess would be a Pedal Ungual from some dinosaur, but it is unlike I’ve seen online. I’m hoping some dinosaur experts can help me out.
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- cerró del pueblo
- cerro del pueblo formation
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I found this specimen along with some other fossils during a fossil hunt. This vertebra is very peculiar and unique, due to its small size, and it’s composition. It is completely permineralized by hematite, making it feel much heavier than the average rock. It almost feels like a chunk of metal. Probably belongs to one of the endemic hadrosaur species of the Cerro del Pueblo Formation, such as Velafrons coahuilensis, or Latirhinus uitstlani.
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Hello, I found this fossil last spring break, in Coahuila, Mexico. It comes from the late Campanian (73-71 Myrs) Cerro del Pueblo formation. I found several fossils at the same location where I found this fossil. Some of the fossils I found include Cerithium snails, several species of Physidae freshwater snails, Inoceramus sp., petrified wood with teredolites, ammonite fragments, a caudal vertebra from a Hadrosaurid, and plenty of dinosaur bone fragments. The formation is a mess, it’s composed of layers that were deposited in marine, and terrestrial environments, as well as rivers and possibly swamps. Even though I’m very knowledgeable of the formation, and the fossils that have been found there I still have no idea as to what this specimen is. My best guess at the moment is that it’s some type of plant material maybe a fruit or a seed. There have been numerous plant fossils found at the formation, including fruits. I also think this could be embedded in a coprolite, with the rounded object being embedded in it. Let me know what you guys think about it.
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- campanian
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Hello, this spring break I found this vertebra in late Campanian sediments from southern Coahuila, Mexico. It comes from the Late Campanian, Cerró del Pueblo Formation, around 73-71 million years. This was found along with marine and terrestrial fossils. It is about 1 cm long (3/8) of an inch, 1 cm in width, and 1.1 cm in height. I want to know what type of dinosaur this vertebra belonged to and whether it’s a caudal vertebra or not. My thoughts on this specimen at the moment, is that it’s probably a caudal (tail) vertebra from a small theropod dinosaur, something like a dromeosaur or a troodontid. I hope some dinosaur experts on this forum can give me more insight on this small vertebra.. Side view Other side Front view Bottom Top view
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- coahuila
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Well, Since I´m a new member, I´ll share with you over the month my little "Fossil Collection"... I´ve always loved fossils and near where I grew up in Mexico you find a lot of fossils... recently I came to Texas and living in Houston, 3 hours away from "fossil land in San Antonio or Dallas... To begin my echonids... only 3 pics to leave this as a brief post....