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List of Dinosaur genera that survived the Triassic-Jurassic Extinction Event 201 Million Years ago
Joseph Fossil posted a topic in General Fossil Discussion
The Triassic-Jurassic Extinction Event of 201 Million Years ago is less talked about at times than the Mass Extinction events at the end of the Permian and the end of the Cretaceous, but was still an incredibly significant extinction event in Earth’s geologic history. P. Olsen et al. Arctic ice and the ecological rise of the dinosaurs. Science Advances. Published online July 1, 2022. doi:10.1126/sciadv.abo6342. https://www.science.org/doi/10.1126/sciadv.abo6342 Caused by volcanic eruptions that would eventually break apart Pangea and form the Atlantic Ocean, about 23-43% of marine genera (including 96% of coral genera at the time) was wiped out alongside between 17-73% of plant genera at the time. On land, archosaur diversity was decimated. Phytosaurs, Aetosaurs, and many others primitive archosaur groups were wiped out. But one major group of archosaurs that survived were the dinosaurs (Dinosauria). Emerging first in the middle Triassic, dinosaur diversity was hit hard by the event. But the group was overall able to survive thanks to adaptations such as a mostly warm-blooded metabolism and (for theropod dinosaurs) feathers for warmth. Some of the first true mammals including Morganucodon also survived the event, but they would take more of a backseat until the end of the Mesozoic era. For the Dinosaurs, the survivors of the event would go on to diversify, increase in size, and dominate Earth’s terrestrial ecosystems for the next 135 Million Years as they become one of the most successful animal groups in Earth’s history. Here’s a list of all currently known Dinosaur genera and families that survived the Triassic-Jurassic Extinction Event. If I forget any examples, please let me know and I'll add the examples to the list promptly. Dinosauria Saurischa Theropoda (Theropod Dinosaurs) Coelophysidae Coelophysis (Late Triassic-Early Jurassic, 215-199.3 Million Years ago) https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=38520 https://paleobiodb.org/classic/basicCollectionSearch?collection_no=47198 https://elischolar.library.yale.edu/peabody_museum_natural_history_postilla/169/ https://www.mdpi.com/1424-2818/14/11/973 https://www.cell.com/current-biology/pdf/S0960-9822(16)31124-1.pdf Lophostropheus (Late Triassic-Early Jurassic, 205.6-196.5 Million Years ago) https://www.tandfonline.com/doi/abs/10.1671/0272-4634(2007)27[73%3ATCLAGN]2.0.CO%3B2 https://www.theropoddatabase.com/Coelophysoidea.htm https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4720452/ Liliensternus (Late Triassic-Early Jurassic, 288-201.3 Million Years ago) https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=55542 https://archive.org/details/predatorydinosau00paul/page/266/mode/2up https://www.cell.com/current-biology/pdf/S0960-9822(16)31124-1.pdf ?Megapnosaurus (Late Triassic-Early Jurassic, 237.0-199.3 Million Years ago) https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=101006 M. A. Raath. 1972. First record of dinosaur footprints from Rhodesia. Arnoldia. 5(37):1-5. https://paleobiodb.org/classic/displayCollResults?taxon_no=101006&max_interval=Triassic&country=Zimbabwe&is_real_user=1&basic=yes&type=view&match_subgenera=1 https://libres.uncg.edu/ir/asu/f/Heckert_A_2003_24_Coelophysids.pdf https://dinodata.de/bibliothek/pdf_p/2021/rsos.210915.pdf Dracoraptor (Late Triassic-Early Jurassic, 201.4-199.3 Million Years ago) https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=335179 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4720452/ Dilophosauridae https://morphobank.org/index.php/Projects/ProjectOverview/project_id/4332 https://www.tandfonline.com/doi/full/10.1080/02724634.2021.1897604 (next sources for this part I recommend further analysis for their hypothesis of the genus Dilophosaurus itself (not just Dilophosauridae) emerging in the late Rhaetian stage of the Triassic in what is now Southern France) https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=231458 https://paleobiodb.org/classic/basicCollectionSearch?collection_no=38886&is_real_user=1 https://paleobiodb.org/classic/basicCollectionSearch?collection_no=126607&is_real_user=1 https://paleobiodb.org/classic/basicCollectionSearch?collection_no=206455&is_real_user=1 https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=231458&is_real_user=1 https://libres.uncg.edu/ir/asu/f/Heckert_A_2005_29_Arizonas.pdf Eubrontes (Brazil species, Late Triassic-Early Jurassic, 228-201.3 Million Years ago) https://paleobiodb.org/classic/displayCollResults?taxon_no=66094&max_interval=Triassic&country=Brazil&is_real_user=1&basic=yes&type=view&match_subgenera=1 https://www.researchgate.net/publication/235218239_Footprints_of_large_theropod_dinosaurs_and_implications_on_the_age_of_Triassic_biotas_from_Southern_Brazil Sauropodomorpha (Sauropod dinosaurs and their ancient sauropodomorph relatives) Massospondylidae https://www.nature.com/articles/s41598-021-01120-w Massospondylus (Late Triassic-Early Jurassic, 200-183 Million Years ago) https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=38642&is_real_user=1 https://www.cambridge.org/core/journals/geological-magazine/article/abs/sedimentology-and-palaeontology-of-the-upper-karoo-group-in-the-midzambezi-basin-zimbabwe-new-localities-and-their-implications-for-interbasinal-correlation/BF94CA760FCD32F6708001EF18B5299E https://bioone.org/journals/journal-of-vertebrate-paleontology/volume-29/issue-4/039.029.0401/A-New-Basal-Sauropodomorph-Dinosaur-from-the-Upper-Elliot-Formation/10.1671/039.029.0401.short Melanorosauridae Melanorosaurus (Late Triassic-Early Jurassic, 216.5-201 Million Years ago) https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=38648 https://www.researchgate.net/publication/281466716_The_first_complete_skull_of_the_Triassic_dinosaur_Melanorosaurus_Haughton_Sauropodomorpha_Anchisauria https://wiredspace.wits.ac.za/server/api/core/bitstreams/5d876b0c-8599-4ee4-8b75-d4078290f8c2/content Lessemsauridae https://wiredspace.wits.ac.za/items/95d33ada-766c-4446-a71b-33fd37fadad4 https://www.nature.com/articles/s41598-021-01120-w Plateosauridae Plateosaurus (Late Triassic-Early Jurassic, 208.5-199.3 Million Years ago) https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=38644 https://paleobiodb.org/classic/basicCollectionSearch?collection_no=191140 https://www.cell.com/current-biology/pdf/S0960-9822(16)31124-1.pdf What do you guys think? Hope you all like it.-
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To preface this post, I want to note that I am not seeking a direct answer to the question that I am about to pose. I simply felt that some members of this forum may have insight on this topic and that it could generate an interesting and informative discussion. For a long while I have been fascinated by the diverse and unique insular faunas that have been uncovered in the fossil record. On a larger scale, unique faunas developed during the Cenozoic on the continents of Australia and South America, which were both isolated continents. Many smaller islands, such as New Zealand and Cyprus, are famous for having had unique examples of insular gigantism and dwarfism during the Pleistocene epoch. Although there are numerous examples from the latter portion of the Cenozoic, insular communities from the Mesozoic and Paleozoic are in far shorter supply. Of course, the discrepancy is likely due to the lower resolution we have as we travel farther back in time rather than a lack of island communities during these eras. Yet one cannot help but wonder what organisms could have evolved on islands during these very different periods of Earth's history. The late Cretaceous island communities of Madagascar and Hateg island have already offered some tantalizing clues as to what strange routes evolution can take in an insular environment. So, I suppose that this is a very roundabout way of asking if any additional island communities are known from the Mesozoic and Paleozoic and what evolutionary patterns members think may have been exhibited on islands during these time periods given the prevailing forms of life at the time. This thought first came to me when I considered the landmass of Pangea. There must have been islands during the latest Paleozoic and early Mesozoic that may have had the opportunity to develop unique faunas throughout the lifespan of the supercontinent. Although we will never have a full picture due to the imperfections of the fossil record, I hope that everyone finds this as interesting to ponder as I have .
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Dicynodont Fossils Found in Yamaguchi Prefecture, Japan
Oxytropidoceras posted a topic in Fossil News
Fossils found in Japan support idea of Pangea supercontinent By Akira Nemoto, Asahi Shimbun, February 14, 2018 http://www.asahi.com/ajw/articles/AJ201802140058.html Yours, Paul H.-
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America and Moroccoo's Special Relationship Explained
Tidgy's Dad posted a topic in General Fossil Discussion
A very important question to discuss I think. What are your opinions on this? https://www.quora.com/Did-the-close-proximity-of-Morocco-and-the-United-States-on-Pangea-play-a-role-in-the-two-countries-to-have-a-long-history-of-friendship -
The prove of an ancient link between Africa and America http://www.newsweek.com/egypt-new-titanosaur-fossil-holy-grail-african-dinosaurs-793778?piano_t=1
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