The form of the argument is incorrect.It isn't that there is absolutelyÂno possibility whatsoever that sauropods and ceratopsids COULD be present. In principle there is nothing to prevent them.But that isn't how we determine if something exists or not. To do that, we have to actually have EVIDENCE that it does. And we are utterly lacking in reasonable evidence for extant ceratopsids and sauropods, or indeed such animals anytime in the last 66 million years.So the time to accept they do exist is when the proponents of the idea put forth some serious evidence, not before.On Tue, May 25, 2021 at 1:40 AM Poekilopleuron <dinosaurtom2015@seznam.cz> wrote:Good day!Recently I saw a discussion about the possibilities of non-avian dinosaurs still living in certain parts of the world (so called cryptids, like mysterious Mokele-mbembe). Of course this is a nonsense, but some people are very adamant in this case. So I would like to ask, what would be your most important arguments for the fact, that there can actually be NO recent sauropods and ceratopsids in Central Africa, etc.? Thank you very much, in advance! Tom--Thomas R. Holtz, Jr.
Email:Âtholtz@umd.eduÂÂÂÂÂÂÂÂ Phone: 301-405-4084
Principal Lecturer, Vertebrate PaleontologyOffice: Geology 4106, 8000 Regents Dr., College Park MD 20742
Dept. of Geology, University of Maryland
http://www.geol.umd.edu/~tholtz/Phone: 301-405-6965
Fax: 301-314-9661ÂÂÂÂÂÂ ÂÂÂÂÂÂÂ
Faculty Director, Science & Global Change Program, College Park ScholarsOffice: Centreville 1216, 4243 Valley Dr., College Park MD 20742
http://www.geol.umd.edu/sgc
Fax: 301-314-9843
Mailing Address:ÂÂÂÂÂÂÂ Thomas R. Holtz, Jr.
ÂÂÂÂÂÂÂ ÂÂÂÂÂÂÂ ÂÂÂÂÂÂÂ Department of Geology
ÂÂÂÂÂÂÂ ÂÂÂÂÂÂÂ ÂÂÂÂÂÂÂ Building 237, Room 1117ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ 8000 Regents Drive
ÂÂÂÂÂÂÂ ÂÂÂÂÂÂÂ ÂÂÂÂÂÂÂ University of Maryland
ÂÂÂÂÂÂÂ ÂÂÂÂÂÂÂ ÂÂÂÂÂÂÂ College Park, MD 20742-4211 USA