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Showing results for tags 'ichthyornis'.
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This is a pretty interesting tooth and I figured I would post it here to get some additional thoughts. This is labeled as an Avisaurus tooth from Garfield County Montana, Hell Creek formation. The first thing that stood out to me was that the shape was a bit different than most teeth labeled Avisaurus that I have seen. Granted I have not seen many but this looked different. It is also close to 1/4" which seems quite large for an Avisaurus. Since there are several Enantionithean birds from Hell Creek, it could be from one for sure but could it be something else? I did some research and found photos on line of a jaw fragments from an Ichthyornis from Kansas that had a similar looking tooth. I am talking general shape really, not saying that is what this is. I also found a comparative study of Hesperornis and Ichthyornis teeth on line and it has a similar shape to one of the Hesperornis teeth in that study. I am very unfamiliar with Avian teeth so I am strictly going by what little research I could find on line. I know there are a couple of Hesperorniformes and an unnamed Ichthyornithean from Hell Creek so it is possible that this tooth belongs to a bird that is not an Enantionithean but I thought this is an ideal tooth to put on the forum and seek some help from those with far more knowledge. Any comments, insights, or thoughts ?
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- avisaurus
- cretaceous bird tooth
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A new paper just published in Nature describes the first complete skull of the Cretaceous bird Ichthyornis, and how it illustrates the evolution of the head of modern birds. News story here. Also NPR story here. Nature article here for those who have access. The fossil is so delicate it remains encased in a block of chalk. The fossil was "prepped" via CT scan which revealed the most minute details. Don
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An Ichthyornis-like bird from the earliest Late Cretaceous (Cenomanian) of European Russia
Oxytropidoceras posted a topic in Fossil News
Paleontologists find remains of toothed bird in Russia for the first time by Paul Rose, Russia Beyond the Headlines https://www.rbth.com/science_and_tech/2017/05/17/paleontologists-find-remains-of-toothed-bird-in-russia-for-the-first-time_764836 Russian Article: https://www.gazeta.ru/science/news/2017/05/16/n_10053761.shtml Interview in Russian: http://paleonews.ru/exclousive/924-ichtyornis Zelenkov, N.V., Averianov, A.O. and Popov, E.V., 2017. An Ichthyornis- like bird from the earliest Late Cretaceous (Cenomanian) of European Russia. Cretaceous Research, 75, pp.94-100. https://www.researchgate.net/publication/315057640_An_Ichthyornis-like_bird_from_the_earliest_Late_Cretaceous_Cenomanian_of_European_Russia http://www.sciencedirect.com/science/article/pii/S0195667116303731 Yours, Paul H.-
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