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Re: Palms in
Richard Travsky said:
Regarding predators, he said he'd been looking for baby
teeth for years. Age can be discerned from shed teeth.
Age can be discerned from shed teeth? Well, perhaps in mammals, where there
might be a difference between the milk teeth and the adult teeth, but how
would you do it for theropods? One of the big problems with classification
of theropod teeth is that so many are so similar that it is difficult to
identify the teeth on the level of genus or even family sometimes, let alone
tell the age. How, for instance, do we know if the small shed teeth are not
developing teeth in the mouth of a larger dinosaur? Or, how do we know that
the little teeth are not from a little adult predator?
He said he's such teeth. The slide(s) showed these
such a tooth on the end of a match stick. These were
tiny teeth. In fact, he's found 35 of them at this
site. Basically, it's a nursery. There are remains
of 30 different animals (species?) here. The bones
have been nibbled on. The slides showed tiny gnaw marks.
In fact, the bones show both tiny and large gnaw marks.
This indicates the parents also chewed on the bones.
It seems, just like with bullets and a gun, the gnaw
marks are distinctive.
Again, here, it is difficult to match predator bite marks on bones with the
predator. Even if you know the number and arrangement of the teeth in the
mouth of, say, Allosaurus fragilis, most of the time the predator is not
biting with its whole mouth -- it could bite with the front, the side, etc.,
leaving different gouge patterns. Or, if biting with the whole mouth, some
teeth may not penetrate deep enough to make discernable marks on the bones.
Regarding the little teeth marks, couldn't these also be from other little
adult dinosaurs or even other reptiles?
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