Search the Community
Showing results for tags 'arctic'.
-
Distinctive Permian Brachiopod from Arctic Canada
Brachioman posted a topic in General Fossil Discussion
This nice Permian Brachiopod has a very large apsacline ventral interarea and is called Arctitreta triangularis. It is from the Assistance Formation in the Artinskian of Devon Island in Canada. It is related to Schuchertella and the more common Streptorhynchus. Does anyone else have any interesting Brachiopods from the Permian?- 6 replies
-
- 6
-
- arctic
- brachiopod
-
(and 2 more)
Tagged with:
-
Can anyone identify these trilobutts for me @piranha and possibly the nautiloid too, from Ellesmere Island, in the high Arctic of Nunavut? I acquired them from a local dealer because they were cheap but of course the information is not as extensive as one would like.... He had a few more things from Ellesmere also including a Maclurites-type gastropod and a segment of a larger nautiloid, kind of grotty but perhaps I should have bought them too to keep the collection together. (I could still do that) I can't find much in the way of papers online about this stuff from the little info I have except that there is Lower Ordovician rock containing Maclurites from the Bache Pen. on the E side of the island, but I can't find any Ordovician St. George Group except in Newfoundland.
-
Worms Revived After 46,000 Years Frozen in Siberian Permafrost
Oxytropidoceras posted a topic in Fossil News
A worm that survived 46,000 years in permafrost wows scientists Emma Bowman, NPR radio, July 30, 2023 Nematode resurrected from Siberian permafrost lay dormant for 46,000 years By Sascha Pare, LiveScience, July 27, 2023 Worms Revived After 46,000 Years Frozen in Siberian Permafrost Scientists want to understand how the worms survived in extreme conditions for extraordinarily long periods of time. By Orlando Mayorquin, New York Times, July 29, 2023 The open access paper is: Shatilovich, A., Gade, V.R., Pippel, M., Hoffmeyer, T.T., Tchesunov, A.V., Stevens, L., Winkler, S., Hughes, G.M., Traikov, S., Hiller, M. and Rivkina, E., 2022. A novel nematode species from the Siberian permafrost shares adaptive mechanisms for cryptobiotic survival with C. elegans dauer larva. PLOS Genectics. 19(7): e1010798 biorxiv.org preprint Peer review history Yours, Paul H.- 2 replies
-
- 3
-
- arctic
- cryptobiotic survival
- (and 10 more)
-
Found on an island in the Canadian Arctic. I think it's a Mosasaur tooth, but I'm really a newbie at this. The whole piece is about 3 inches in length. Thanks for any help!
-
Scientists have revived a ‘zombie’ virus that spent 48,500 years frozen in permafrost
Oxytropidoceras posted a topic in Fossil News
Scientists have revived a ‘zombie’ virus that spent 48,500 years frozen in permafrost By Katie Hunt, CNN, March 8, 2023 The open access paper is: Alempic, J.M., Lartigue, A., Goncharov, A.E., Grosse, G., Strauss, J., Tikhonov, A.N., Fedorov, A.N., Poirot, O., Legendre, M., Santini, S. and Abergel, C., 2023. An update on eukaryotic viruses revived from ancient permafrost. Viruses, 15(2), p.564-570. Another paper is: Miner, K.R., D’Andrilli, J., Mackelprang, R., Edwards, A., Malaska, M.J., Waldrop, M.P. and Miller, C.E., 2021. Emergent biogeochemical risks from Arctic permafrost degradation. Nature Climate Change, 11(10), pp.809-819. Yours, Paul H.-
- arctic
- eukaryotic viruses
- (and 6 more)
-
An icy mystery deep in Arctic Canada Phoebe Smith, BBC News, Geologic Marvels, April 4, 2022 Yours, Paul H.
-
Arctic Ocean fossil specimen collecting ideas?
cutgrindpolish posted a topic in General Fossil Discussion
Hi, I was wondering if anyone could suggest an interesting fossil I could add to my collection that is from the Arctic Ocean. Fossil Walrus tusk is not allowed in my state and I'd like to add something from this locality. I was thinking the Greenland sleeper shark fossil teeth as it is the oldest vertebrate but I'm not sure how to identify one that would have traveled to the Arctic Ocean as I'm not aware of any collections in the arctic as opposed to closer. Is there any other interesting fossils that would be known to be from the Arctic Ocean? It is the last region not already in my collection. I'm new to fossil collecting but I have already obtained land collections from all the continents and oceans other than the arctic and southern. Does anyone know of coral from the Arctic Ocean/coastline or anything else that might be interesting. Not sure if this is really fossil related but Deep Sea vents might be interesting if anyone knows where to trade/buy specimen samples from either in the Southern or Arctic Oceans?- 10 replies
-
- arctic
- arctic ocean
-
(and 1 more)
Tagged with:
-
Interesting article on a fossil tooth that his been "buried" in a museum vault for years. It was recently identified as a type of hyena that may have roamed the Arctic Circle. NYT subscribers, or those who haven't gone over a free limit, should be able to read. Cheers. Arctic hyena tooth fossil
-
When did Life Arrive on Land? (Organic-walled microfossils, *FUNGI* Arctic, Canada)
Oxytropidoceras posted a topic in Fossil News
How Did Life Arrive on Land? A Billion-Year-Old Fungus May Hold Clues A cache of microscopic fossils from the Arctic hints that fungi reached land long before plants. Carl Zimmer, New York Times, May 22, 2019 https://www.nytimes.com/2019/05/22/science/fungi-fossils-plants.html The paper is: Loron, C.C., Rainbird, R.H., Turner, E.C., Greenman, J.W. and Javaux, E.J., 2019. Organic-walled microfossils from the late Mesoproterozoic to early Neoproterozoic lower Shaler Supergroup (Arctic Canada): Diversity and biostratigraphic significance. Precambrian Research, 321, pp.349-374. https://www.researchgate.net/publication/329839018_Organic-walled_microfossils_from_the_late_Mesoproterozoic_to_early_Neoproterozoic_lower_Shaler_Supergroup_Arctic_Canada_Diversity_and_biostratigraphic_significance https://www.researchgate.net/profile/Corentin_Loron https://www.researchgate.net/profile/J_Wilder_Greenman https://www.sciencedirect.com/science/article/pii/S030192681830216X Yours, Paul H.- 15 replies
-
- 4
-
- arctic
- billion year old fungi
- (and 6 more)
-
Oldest Known Macroscopic Skeletal Organism Found (Central Urals, Russia)
Oxytropidoceras posted a topic in Fossil News
Oldest Known Macroscopic Skeletal Organism Was Masquerading as Fossilized Feces. Some researchers initially dismissed the remains of Palaeopascichnus lineari as teeny turds from a bygone era SmithsonianCom, https://www.smithsonianmag.com/smartnews-history-archaeology/oldest-known-macroscopic-skeletal-organism-was-masquerading-fossilized-feces-180970509/ Petrified Chains of 'Poop' Turn Out to Be One of Earth's Oldest Skeletons By Stephanie Pappas, Live Science, October 9, 2018 https://www.livescience.com/63783-mystery-fossil-is-oldest-exoskeleton.html Kolesnikov, A.V., Rogov, V.I., Bykova, N.V., Danelian, T., Clausen, S., Maslov, A.V. and Grazhdankin, D.V., 2018. The oldest skeletal macroscopic organism Palaeopascichnus linearis. Precambrian Research, 316, pp.24-37. https://www.sciencedirect.com/science/article/pii/S0301926817307052 http://www.ipgg.sbras.ru/ru/science/publications/publ-the-oldest-skeletal-macroscopic-organism-palaeopascichnus-047874 Yours, Paul H. -
It seems that some habits are just imprinted in the genes http://www.cbc.ca/news/technology/bear-fossils-arctic-1.4451466
-
Hallo, Does anyone know what this might be? I am hoping for a dinosaur skin inprint. :-) This was found on Svalbard on a spot where I also found bones from Plesiosaurs and Ichthyosaur. I am grateful for any help. Thanks! /Malin
-
Hi everyone ! Just discovered this forum and thought I should give it a go regarding identifying some trace fossils. I am currently working with the sedimentology of the Upper Triassic on Svalbard and in the Norwegian Barents Sea. Several trace fossils has been observed in the field and it would of course help a lot to identify them when it comes to the sedimentological interpretation. So, feel free to comment. - Picture 1 shows a vertical 'tube' burrow in a heterolithic setting (mud + sand). The preliminary interpretation is that it was deposited in the offshore-transition zone. Could also have been in a shallower pro-delta environment. Could it be Skolithos, or is it to 'wiggly' and thick? - Picture 2 shows a similar trace fossil (same facies as described above). - Picture 3 also shows one or two vertical burrows (same facies as described above). - Picture 4 shows some apparently vertical traces (same facies as described above). - Picture 5 shows a vertical trace found in a flaser heterolithic setting (90% sand + 10% mud). As you can see, it cuts through the layers and bends them a bit downwards. Preliminary interpretation is a tidal sand flat. - Picture 6 and 7 shows some thick horizontal burrows. Found in a 1 m thick sandstone with hummocky cross stratification and wave ripple cross lamination. Preliminary interpretation is a lower shoreface setting. Could it be Rhizocorallium? Cheers!
- 3 replies
-
- Arctic
- De Geerdalen Fm
-
(and 3 more)
Tagged with: