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Maiasaura and Stop asking
Thanks everyone who told me the ref for the Maiasaur paper I asked about a
couple of days ago. I went and got it at the library today. I still don't
understand. In the paper the authors make some valid points: most archosaurs
are precocial (able to walk about) when they're born, most altricial (not
able to walk about) young are able to walk in a matter of weeks, and ossified
hips in embrionic Maiasaurs seem to show that they were indeed precocial
rather than altricial as Horner suggested. The authors also claim that
Orodromeus was precocial (which I agree with), but say that Horner claimed
otherwise. I don't recall ever reading anything about Horner saying
Orodromeus young were altricial, in fact all I read was opposed to altricial
Orodromeus. Another thing that seems to bother me about the paper is that at
the end, because dinosaurian young were precocial, their nesting behavior is
most similar to crocodilians, and thus their phisiology was too. Where did
that come from? How did they make that jump? I understand that crocodiles
have very complex nesting behaviors, but there are very many precocial bird
species who have complex nesting behavior and care for their young. Why were
dinosaurs most similar to crocodilians?
[ Did you notice that the latter point was addressed in the letters to
the editor a couple of issues after that paper came out? -- MR ]
Also, stop asking me what dromeosaur stuff is, I told you I'm not going to
tell until the paper's written (not by me).
How do you shoot the devil in th back? What if you miss?