pefty Posted January 23, 2020 Share Posted January 23, 2020 Today, instead of bemoaning the paucity of marine cretaceous rocks in my state, I reframed the situation as follows: "In the Cretaceous, most of Missouri was not ocean but land, with lots of exposed limestone that dinosaurs were likely walking around on." This led me to the following question: Do we have no fossil examples of dinosaurs that fell in sinkholes / caves / paleokarst and were preserved there, perhaps discovered during quarrying of the limestone? We definitely have such examples for fossil mammals, reptiles, etc., including Pleistocene (Ocala), Pliocene (Pipe Creek Jr.), and Miocene (Gray Fossil Site)... So why not earlier? Why not dinosaurs? Surely there were paleokarst processes in action during dinosaur times. As possibly useful information, there was definitely regional hydrothermal activity here in the Mesozoic, based on the Jurassic emplacement age of southern Illinois fluorite. Link to comment Share on other sites More sharing options...
dinosaur man Posted January 23, 2020 Share Posted January 23, 2020 There’s no Dinosaurs because of the rocks age. But maybe one day there will be a dinosaur found preserved in one of these but for now it’s unlikely. Link to comment Share on other sites More sharing options...
Pterygotus Posted January 23, 2020 Share Posted January 23, 2020 In Britain there have been possible Triassic dinosaurs preserved in Rhaetian fissure fillings from a much older age. 4 Link to comment Share on other sites More sharing options...
Pemphix Posted January 23, 2020 Share Posted January 23, 2020 There are some examples for Dinosaurs and others from fillings: Permian: https://www.researchgate.net/publication/225984848_A_remarkable_assemblage_of_terrestrial_tetrapods_from_the_Zechstein_Upper_Permian_Tatarian_near_Korbach_northwestern_Hesse Cretaceous: https://journals.ub.uni-heidelberg.de/index.php/aiw/browse/authorDetails?givenName=Klaus-Peter&familyName=Lanser&authorName=Lanser%2C Klaus-Peter : Raubsaurier aus einer Verkarstung im devonischen Massenkalk im Hönnetal bei Balve Archäologie in Westfalen-Lippe ARCHÄOLOGIE IN WESTFALEN-LIPPE 2010 (2011) Nachweise von Flugsauriern aus einer Verkarstung im Bereich des Hönnetals bei Balve Archäologie in Westfalen-Lippe ARCHÄOLOGIE IN WESTFALEN-LIPPE 2013 (2014) Die Reste pflanzenfressender Dinosaurier aus der Unterkreide des Hönnetals Archäologie in Westfalen-Lippe ARCHÄOLOGIE IN WESTFALEN-LIPPE 2013 (2014) Vorfahren der Tyrannosaurier aus dem Hönnetal bei Balve Archäologie in Westfalen-Lippe ARCHÄOLOGIE IN WESTFALEN-LIPPE 2014 (2015) 3 Link to comment Share on other sites More sharing options...
Welsh Wizard Posted January 23, 2020 Share Posted January 23, 2020 2 hours ago, Pterygotus said: In Britain there have been possible Triassic dinosaurs preserved in Rhaetian fissure fillings from a much older age. Hi. Just to add to this. The Triassic dinosaur Pantydraco was discovered in the 1950s in a quarry just outside of Cardiff. It was about the size of a cat and found in a fissure full of clay within a Carboniferous limestone quarry. The bones of this dinosaur are in the vaults of the NHM London. There are numerous bones found in these Welsh fissure fills including some of the worlds oldest mammals - Morganucodon. 5 Link to comment Share on other sites More sharing options...
Mahnmut Posted January 23, 2020 Share Posted January 23, 2020 There are also some Iguanodon remains in Karst-holes in devonian chalk in Nehden, Germany, there is an artikle about those in the german wiki. Best Regards J 1 Try to learn something about everything and everything about something Thomas Henry Huxley Link to comment Share on other sites More sharing options...
Welsh Wizard Posted January 24, 2020 Share Posted January 24, 2020 There’s also Thecodontosaurus whose remains have been found in numerous fissure fills around the Bristol area. Here’s a link to The Bristol Dinosaur Project: http://www.thebristoldinosaurproject.org.uk/ Link to comment Share on other sites More sharing options...
pefty Posted January 25, 2020 Author Share Posted January 25, 2020 This is such a great list being assembled! Y'all are giving me real hope for Missouri! Link to comment Share on other sites More sharing options...
Recommended Posts