[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: questions on tetanurines & etymology

At 12:35 PM 4/28/97 -0400, you wrote:
>What characters show that Baryonyx and Spinosaurus (etc.) should be 
>united into Spinosauridae?

Just about everything...  How about: more than five premaxillary teeth,
naris greatly retracted, conical teeth, dentary rosette, and other features
to be described by Milner in her forthcoming monography.

>How strong is the grouping of Acrocanthosaurus, Giganotosaurus, and 
>Carcharodontosaurus into Carcharodontosauridae?
>I have a posting by Holtz (10/24/96; 9:12am) discussing these questions, 
>at which time they did not seem well resolved.

I haven't overturned (yet) the analysis to which you refer.

>Also, two quickies on etymology (sorry, but my library stinks):
>Does anyone know the etymology for Kronosaurus; "krono-" is the problem.

I presume it is from Kronos (the Greek equiv. of Saturn): Titan, father of
Zeus, who swallowed all the other of the first generation of Olympians
before being slain by the infant Zeus, who "liberated" his siblings.

Thomas R. Holtz, Jr.
Vertebrate Paleontologist     Webpage: http://www.geol.umd.edu
Dept. of Geology              Email:th81@umail.umd.edu
University of Maryland        Phone:301-405-4084
College Park, MD  20742       Fax:  301-314-9661

"To trace that life in its manifold changes through past ages to the present
is a ... difficult task, but one from which modern science does not shrink.
In this wide field, every earnest effort will meet with some degree of
success; every year will add new and important facts; and every generation
will bring to light some law, in accordance with which ancient life has been
changed into life as we see it around us to-day."
        --O.C. Marsh, Vice Presidential Address, AAAS, August 30, 1877