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Showing results for tags 'aguja formation'.
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Rowe, Timothy, et al. “The Campanian Terlingua Local Fauna, with a Summary of Other Vertebrates from the Aguja Formation, Trans-Pecos Texas.” Journal of Vertebrate Paleontology, vol. 12, no. 4, [Society of Vertebrate Paleontology, Taylor & Francis, Ltd.], 1992, pp. 472–93, http://www.jstor.org/stable/4523473. DeMar also has a nice description of the differentiation between eutherian/metatherian upper molars: "The upper molars of metatherians and eutherians are triangular shaped with three major cusps or bumps on the occlusal surface of the crown. The main difference
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From the album: Aguja Formation
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From the album: Aguja Formation
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From the album: Aguja Formation
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From the album: Aguja Formation
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From the album: Aguja Formation
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- aguja formation
- aguja
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While my prime focus is essentially learning how to accurately describe Nature in the precise language of mathematics, I've always been intrigued by natural history - it's actually what started me on the path to physics. The sort of interrogation that paleontology practices provoked me to think and question even further, down to the fundamental science which makes it all work. Collecting fossils has brought a large amount of enjoyment to my life, and is often a welcome distraction from what can sometimes be straining work. The knowledge that I accumulate along the way is also part
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As I continue to sift through my bag of micro matrix from the Aguja Formation, I came across this interesting little mammal tooth. It looks to me like an incisor but I suppose it could also be a canine. I am completely unfamiliar with Mesozoic mammals and I’m not even sure how far down this tooth is distinguishable, but I thought I’d post it anyway. Super excited as this is my first Mesozoic mammal tooth. Size: ~0.5cm Magnifier 20X from three different angles: Thanks for any information/resources you can point me to. As always, I deep
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- mesozoic mammal
- mammal
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From the album: Aguja Formation
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- salamander dentary
- salamander jaw
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From the album: Aguja Formation
Finally, a theropod! It's just a fragment, however.-
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- aguja formation
- aguja
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From the album: Aguja Formation
Small gar fish teeth. The tips are often broken. -
From the album: Aguja Formation
Dinosaur material is uncommon in this matrix. This is a fragment of a small hadrosaur tooth. -
From the album: Aguja Formation
Very small crocodilian teeth sized at just mm. -
From the album: Aguja Formation
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From the album: Aguja Formation
Very small teeth from sawfish and carpet sharks, respectively. -
From the album: Aguja Formation
Amiid fish teeth. -
From the album: Aguja Formation
Very uncommon for this tooth to be complete.-
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- lissodus
- aguja formation
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From the album: Aguja Formation
Very uncommon for this tooth to be complete. -
From the album: Aguja Formation
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From the album: Aguja Formation
Sawfish oral teeth, much smaller than ones I usually find in the Eagle Ford. These are maybe 2 mm in width. -
From the album: Aguja Formation
Dinosaurs have a distinct bone structure, with large and well-defined Haversian Systems/Osteons (which look like rings around holes where blood vessels used to be). -
From the album: Aguja Formation
A very small ( ~ 1 mm in length) mammal/multituberculate premolar. Indeterminate species. I unfortunately broke part of the root after this picture was taken. -
From the album: Aguja Formation
A very small ( ~ 1 mm in length) mammal/multituberculate premolar. Indeterminate species. I unfortunately broke part of the root after this picture was taken.-
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- mesozoic mammal
- cretaceous mammal
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From the album: Aguja Formation
Amber is plentiful in the matrix, appearing as blood-red to orange resinous blobs.-
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- amber
- aguja formation
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From the album: Aguja Formation
The largest croc tooth I've found in the first batch of matrix, about 6 mm in length. Indeterminate species.
