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Re: [dinosaur] Procheneosaurus



ïNomina oblita are names that havenât been used as valid after 1899, not 
just 50 years. The other condition is that the nomen protectum has to have been 
used as valid in at least 25 publications in the last 50 years, which alsohave 
span a period of more than 10 years and have at least 10 authors. Tyrannosaurus 
definitely meets the requirements of the latter, but Iâm not sure that 
Manospondylus meets the requirements of the former.

> On Sep 17, 2020, at 6:04 AM, Mickey Mortimer <mickey_mortimer111@msn.com> 
> wrote: