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Suchomimus
tenerensis
With a
face like that, it would have to be a "crocodile mimic".
Suchomimus was
discovered
in the Tenere Desert of the west-central African country of Niger. Africa
is a continent
that is poorly understood in terms of dinosaur evolution. But this discovery along
with Spinosaurus from Egypt in 1915, and Baryonix from England in 1983,
have helped piece together a picture of the therapod group Spinosauridae.
The
skull features of Suchomimus point to a snatch and secure hunting style.
Eating slippery prey items
such as fish, large eels or something we just do not
know of yet.
The
head was very narrow and filled with about a hundred small conical shaped teeth,
much like a crocodile. This kind of tooth shape is good for puncturing and
gripping as opposed to tearing. It also helps that the upper and lower teeth
meshed together squarely to hold prey firmly once grabbed . The skull also has a
hard palate separating the mouth from the nasal passages helping to
reinforce the narrow skull from stress forces created by struggling prey and head
shaking. It is possible that Suchomimus had a large gular or throat pouch,
perhaps similar to what pelicans have, that expanded to hold large fish just prior
to being swallowed head
first, considering the narrowness of the jaws.
Suchomimus
was found in rocks about a hundred million years old, putting it in the lower
Cretaceous period. The skeleton was 36 feet long and is not considered to be
full grown. The humerus, radius and ulna (arm bones) had very large flaring crests,
especially at the elbow joint, which
served as attachment sites for obviously huge muscles. The fingers were tipped
with equally massive claws: The thumb claw alone was 16 inches long! These arms
must have played an important role in grappling prey. Perhaps the arms
helped to tear off huge chunks from prey that was too large to swallow
whole. Suchomimus was obviously powerful enough to subdue large animals.Another
curious feature were the tall neural spines of the vertebrae. Their
function is open to speculation. see the page on Acrocanthosaurus
for more discussion on these strange vertebrae.
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