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Young, rapid tyrannosaurs likely chased down and cornered large
hadrosaurs for the slower, larger adults
Why slower? They had longer
legs, after all?
Spinosaurus remains a nomen dubium (along with
Therizinosaurus).
Both have plenty of
diagnostic characters, don't they?
Of interest are the relationships between Baryonyx
and Suchomimus: taxa having long forearms [...] Perhaps
like Iguanodon, they were probably functionally
quadruped,
...bearing weight on the
lateral surfaces of their 3rd metacarpals and fingers, the thinnest and weakest
in the whole hand, BTW? I can't imagine that...
and the long spines on the back could have been the bases for
reinforced musculature to provide a balance for the heavy front part of the
body including the head. [...] Rather than a "fin", these animals may have
looked more like hump-backed bison.
What good is a hump that is
higher than the rest of the body? IMHO a hump can, if at all, only have covered
the very base of the spines. A hump would also probably require that the spines
were highest over the hips. Is this possible?
Like a pair of pinchers, the jaws held prey, the long manal
claws killing or disabling.
Manual. The manual of your computer is
what you hold in your hands -- same word.
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