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Re: Triceratops defence
In a message dated 6/14/99 2:33:18 PM Eastern Daylight Time,
<< In addition, the knee of all known dinosaurs (at least that I've seen and
am aware of) did not have a patella to assist the quadruceps muscles
inserting onto the tibia. To compensate for this "loss of leverage,"
dinosaurs and other reptiles have developed a larger cnemial crest to keep a
decent lever advantage for these leg-extending muscles. The cnemial crest is
sometimes called the tibial tuberosity,
and it is located just under the proximal portion of the tibia. >>
Does this help indicate the angle at which the front legs of triceratops were
held? If the leg is not straight and directly under the animal but splayed
and at an angle, as I've seen it drawn, would all the weight of the head be
put on a muscle or something else rather than straight onto the bone? That
seems like it could be painful as the animal got older.