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Showing results for tags 'yukon'.
Found 9 results
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For Late Ordovician graptolites, a long decline before extinction
Oxytropidoceras posted a topic in Fossil News
For ancient deep-sea plankton, a long decline before extinction University of Buffalo, Press release by Charlotte Hsu Sheets, H.D., Mitchell, C.E., Melchin, M.J., Loxton, J., Štorch, P., Carlucci, K.L. and Hawkins, A.D., 2016. Graptolite community responses to global climate change and the Late Ordovician mass extinction. Proceedings of the National Academy of Sciences, 113(30), pp.8380-8385. Researchgate PDF for above paper Related publications Yours, Paul H. -
Yukon paleontologist’s fossils are pure gold: Grant Zazula will be giving the 19th annual Dr. John Rae Lecture in Hamilton, focusing on the amazing lode of fossils and ancient DNA in the Yukon, and its connection with the hunt for gold. by Jeff Mahoney, The Hamilton Spectator https://www.thespec.com/opinion-story/9117772-yukon-paleontologist-s-fossils-are-pure-gold/ Paul H.
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Fossils from cat with 'steak knife' fangs, found in Yukon, give researchers something to chew on. Two fossils help provide new insight into the mysterious, and extinct, scimitar cat. CBC News, Oct 25, 2017 http://www.cbc.ca/news/canada/north/yukon-scimitar-cat-fossils-paleontologists-1.4372037 The paper is: Paijmans, J.L., Barnett, R., Gilbert, M.T.P., Zepeda-Mendoza, M.L., Reumer, J.W., de Vos, J., Zazula, G., Nagel, D., Baryshnikov, G.F., Leonard, J.A. and Rohland, N., 2017. Evolutionary History of Saber-Toothed Cats Based on Ancient
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Anyone intimately familiar with Phyllocarid morphology? This slab is from a lower Devonian formation in the northern Yukon Territory. These things were giants ... The well preserved Telson (tail-spike) piece is 10" long, the feeler/antennae assembly alone is 18" long ... In life the critter was likely a good meter in length. What I'm not certain about is the 8" long arm-like appendage at top, as well as a small armor like plate nearby. Over the years have found many complete trident shaped telsons and antennae but not much in the way of other body parts.
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Here's one of the head shields from the same location , which I don't think has any relation to the previously posted spiny pygidium ... This is the only type of cephalon I've recovered from that spot.
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Here's probably the most interesting piece I came across this past summer .... It's provenance, in the Yukon Territory's northern Ogilvie Mtns., just a bit south of the Arctic Circle, is what might be described as an iconic Ordovician faunal assemblage, rich in large Gastropods, Orthocerid Nautiloids, large horn and tabulate corals and relatively few Brachiopods. Trilobites, however, seem to have been a bit player in this group ... Over many years, I've found only a half dozen partial trilobites at that exact spot. The other pygidia I've found are fairly conventional, similar to Ps
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Single-celled eukaryote fossil with evidence of mineralizing found in Yukon by Bob Yirka, June 29, 2017 https://phys.org/news/2017-06-single-celled-eukaryote-fossil-evidence-mineralizing.html Precursor of teeth and bones discovered in 810-million-year old fossils. Single-celled fossils found in Canada show the earliest evidence of a tissue-hardening process known as biomineralisation, writes Andrew Masterson, Cosmos. https://cosmosmagazine.com/palaeontology/precursor-of-teeth-and-bones-discovered-in-810-million-year-old-fossils The paper is
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- fifteenmile group
- yukon
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These are a few of the pdf files (and a few Microsoft Word documents) that I've accumulated in my web browsing. MOST of these are hyperlinked to their source. If you want one that is not hyperlinked or if the link isn't working, e-mail me at joegallo1954@gmail.com and I'll be happy to send it to you. Please note that this list will be updated continuously as I find more available resources. All of these files are freely available on the Internet so there should be no copyright issues. Articles with author names in RED are new additions since May 6, 2018.
