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Showing results for tags 'vertebrata'.
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I'm interested in a few of these turtle fossils supposedly found in the Neuse river in North Carolina. They are also labeled as Cretaceous. Do you think this is accurate or could they be from another age and or locality?
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- america
- appalachian
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Hi everyone, I'm Roger. I need some advices to proceed with the preparation of vertebrate material from Cretaceous marine sandstones of the Parras Basin in northeastern Mexico. I have some isolated mosasaurid centra with adhered matrix (mainly sandstone, as well shale) and some tiny shark teeth embedded in sandstone. I seek to use chemical methods. I have heard of the use of dimethyl sulfoxide but have never actually used it, if anyone has experience with this reagent I would love to hear your feedback. I am not opposed to working with mechanical methods, but I do not have the necessary tools, in Mexico that market is somewhat limited and expensive, because it must be imported. Any comments are welcome, thanks in advance!
- 6 replies
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- cretaceous
- sandstone
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From the album: My collection in progress
Spinosaurus aegyptiacus Stromer 1915 Location: Kem Kem Beds, Morocco Age: 95 Mya (Cenomanian, Upper Cretaceous) Measurements: 7x2 cm Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Reptilia Subclass: Diapsida Superorder: Dinosauria Order: Saurischia Suborder: Theropoda Family: Spinosauridae-
- cenomanian
- chordata
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From the album: My collection in progress
Merycoidodon culbertsoni Leidy 1848 Location: Brule Formation, White River Badlands, South Dakota, USA Age: 34 - 23 Mya (Oligocene, Paleogene) Measurements: 3x6,5 cm Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Mammalia Subclass: Theria Superorder: Laurasiatheria Order: Cetartiodactyla Suborder: Tylopoda Family: Merycoidodontidae-
- artiodactyla
- brule formation
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How to tell apart mosasaur and Enchodus teeth? This fragment is 2 mm in length. It has longitudinal striations (not visible on photo) and at least one cutting edge (there might be a second on the other side, but some surface is missing there, and a bit of sediment is adhering), the cross section seems to be oval-to-irregular (but see comment above). The lower part is witish, the upper - redish. Sorry for the poor quality picture. Lower Campanian, marine, southern Poland.
- 7 replies
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- cretaceous
- europe
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