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Ankylosaurs (was Re: Birds and mosasaurs) (fwd)



Thomas Holz wrote...
> The Middle Jurassic ankylosaur Sarcolestes is included by most workers
> in Nodosauridae (a family which makes it to the latest Cretaceous), and
> the Middle Jurassic Tianchisaurus in Ankylosauridae (ditto).  Late
> Jurassic representatives would be Dracopelta and Mymoorapelta,
> respectively.

    So, we know of at least TWO dinosaur families that extend all the way 
from the middle (or at LEAST late) Jurassic until the late Maastrichtian.      
 
LN Jeff