Talk:Controversies in Science/What killed the dinosaurs

Altough the Chicxulub Cater may date back to over 300,000 years before the dinosaurs, that does not mean other meteror/astroids did not have a part in the extinction of the dinosaurs.Jmay3355 (talk) 22:19, 13 April 2012 (UTC)

cause of Cretaceous savanna dinosaur decline

       The Cretaceous ocean predators were very large. I suspect that the productivity implied by this was caused by a flow of phosphorus toward the ocean from the savannas (seasonal rainfall areas) permitted by erosion of phosphorus rich runways of plant smothering termites in the Amitermitinae starting in late Jurassic in Australia where the first ocean phosphorite deposits occurred. Anoxic conditions in the oceans were also probably caused by this. This anoxic bottom condition probably helped reduce the ammonites also, in addition to competition from phosphorus enhanced vertebrates. The savanna herbivore dinosaurs declined in armor, teeth, and quite a bit in bony structure across the Cretaceous outside of South America, especially in southeast Asia. Many even lost teeth. I suggest it was due to this same phosphorus famine created by erosion of the soil of the runways of plant smothering termites. Pterosaurs and birds probably lost teeth primarily because of the young eating iron oxide and bauxite in the flying reproductive soil borne termites’ guts, which bound the phosphates. You may see this discussed in more detail starting in   http://www.angelfire.com/nc/isoptera/termites.html   and its links, which links explore the possible affect that ant evolution had upon them. By the time the Cretaceous ended the world ended up with tiny savanna vertebrates, most of them mammals, which were able to give their young phosphorus in milk at that critical stage. They were a far cry from the massive, well boned Stegosaurs, etc., which roamed around the Jurassic, and had diminished tooth structure at first. They were a long time starting to increase in size (several million years).
       You may see the affects on soil discussed in more detail in http://www.angelfire.com/nc/isoptera/soil.html .
                                    Sincerely, Charles Weber

PS It is conceivable that you would also find interesting a hypothesis of my son explaining the Decca (or Deccan) lava flows as disruption of the crust by the disruption of the crust at the antipode (opposite side of a sphere) by a huge meteorite impact. You may see my version in http://charles_w.tripod.com/antipode.html .

       Sincerely, Charles Weber

Semi-protection (May 2023)

Since there are IPs removing header templates to replace it with a YouTube link, I semi-protected the page and restored the removed templates, and the added YouTube link is saved as the commented out part instead reverting. Does anyone think this video is educational? MathXplore (discuss • contribs) 08:15, 16 May 2023 (UTC)

The IPs that I mentioned are the ones that also targeted What killed the dinosaurs?. MathXplore (discuss • contribs) 08:32, 16 May 2023 (UTC)

(Explanatory note) The added YouTube video was too short to be educational, non-academic and non-authoritative. MathXplore (discuss • contribs) 10:38, 16 May 2023 (UTC)