Re: Predatory *baby* dinosaurs of the world

["Jaime A. Headden" <qilongia@yahoo.com>]

Jessica Wager wrote:

<The show [ "When Dinosaurs Ruled" ] also mentioned
another "Fammily" of Tyrannosaurs was found by Peter 
Larson (isn't he in jail or something?), this included
Sue, a 'male' a juvinile and a baby with a 10-inch
skull. What did the baby's skull look like? What did
the juvinile's skull look like? Were did the animals
look like in comparison to the adults? How big were
the animals?>

  Pretty varied; aside from Larsson's two abstratcs on
the subject (presented at DinoFest and SVP), these
have not been published to any detail yet. And
Larsson's out, been for over a year now, thank G--.

<Later in the show it mentioned that somewhere there
was a site where several allosaurs had frenzied over
sauropod remains, with there being 13 sauropod 
skeletons and 44 mostly 1/2 grown allosaurs there.>

  This would be the Cleveland-Lloyd Quarry, in
northeastern Utah.

<How big were the half grown allosaurs? What did they
look like in comparison to a full grown allosaur? What
did their skulls look like?>

  They looked like an allosaur, actually. All the
skull details, only proportionately different. There's
actually a well illustrated skull in the lit. of a
subadult, plus skeletons around the world. Look in
_Discovering Dinosaurs_ [mis-captioned as
*Centrosaurus*!] and Glut's first _Dinosaur
Dictionary_.
 
<Also, does anyone know of any other baby predatory
dinosaurs found in the world, if so, what do their
skulls look like, how big were they (the skulls and
the dinosaur), what did they look like? How were they
different from the adult dinosaurs?>

  There is actually a whole taxon based on a juvenile,
*Mussaurus*, even though adults are known. Horner's
books illustrate a lot of his *Maiasaura* work (check
out _Digging Dinosaurs_ and *Dinosaur Lives*), he's
got several papers in _Nature_ on ontogeny (changes
through growth) in this animal, plus lots of babies,
and Doug Henderson's illustrations in _Maia_ are still
top-of-the-line. Russell drew up a hypothetical
skeleton of a baby albertosaur for his paper on
tyrannosaurids, later illustrated in Norman's
_Encylopedia of Dinosaurs_. New finds in South America
show baby and embryo titanosaurs and their nests,
including skin impressions. Finally, there's the
little oviraptorid embryo Norell et al. described in
1995, setting off the _Egg Thief Exhonerated_
introspection period. Dinosaurs tend to grow to
remarkably large size compared to their starting size,
and a chapter or two in _Complete Dinosaur_ discuss
this matter. Check 'em all out.

===
Jaime A. Headden

"May I lure us, ere the mote ends us?"

Qilong, the we---is temporarily out of service.
Please check back when the phone lines are no
longer busy.
__________________________________________________
Do You Yahoo!?
Bid and sell for free at http://auctions.yahoo.com