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

FW: Feduccia et al. (2005) Critique [with uups]



All,

Doing a reverse-engineering, I accidentaly sended this message to Mickey
only,
when it was ment to the whole DML, sorry Mickey! 

--Mikko Haaramo


> -----Original Message-----
> From: Mikko K. Haaramo [mailto:mikko.haaramo@helsinki.fi] 
> Sent: 19. lokakuuta 2005 8:46
> To: 'mickey_mortimer111@msn.com'
> Subject: RE: Feduccia et al. (2005) Critique
> 
> All,
> 
> Of the forementioned Psittacosaurus-specimen;
> 
>       Mayr, G., Peters, D. S., Plodowski, G. & Vogel, O., 
> 2002: Bristle-like integumentary structures at the tail of 
> the horned dinosaur Psittacosaurus.
> -Naturwissenschaften: Vol. 89, #7, pp. 361-365 
> 
>
> --Mikko Haaramo
> 
> 
> > -----Original Message-----
> > From: owner-dinosaur@usc.edu 
> [mailto:owner-dinosaur@usc.edu] On Behalf 
> > Of Michael Mortimer
> > Sent: 18. lokakuuta 2005 20:00
> > To: dinosaur@usc.edu
> > Subject: Re: Feduccia et al. (2005) Critique
> > 
> > Daniel Selvidge wrote-
> > 
> > > >This Psittacosaurus is pretty amazing.  A complete specimen with 
> > > >filaments preserved inside the ribs.
> > > >Often preserved crossing one another, they do form herringbone 
> > > >patterns sometimes.  They claim some filaments appear beaded and 
> > > >curved, which occurs in degraded collagen.
> > >
> > >Do we have to wait for their published work on the creature or are 
> > >there anymore references to it available.  I haven't been 
> following 
> > >things recently and I'm a bit out of the loop on the new 
> discoveries.
> > >Furthermore, the fibers are within the ribs? Couldn,t that
> > leave a lot
> > >of possibilities open.
> > 
> > Well, this IS technically published work on the specimen.  No other 
> > references are available besides comments in a couple other BAND 
> > papers citing 'dino-fuzz' on Psittacosaurus, which everyone assumed 
> > was referring to the quilled specimen.  I didn't mean to imply the 
> > filaments were inside the rib bones, but rather that they 
> were between 
> > the ribs.
> > 
> > > >Are these feathers?
> > > >No, as we have the very well preserved quilled specimen that 
> > > >indicates psittacosaurs were fully scaled, including 
> over the rib 
> > > >region.  Could this be a feathered juvenile of a scaled
> > adult?  It is
> > > >half the size of the quilled specimen (and doesn't
> > preserve quills,
> > > >though this could be taphonomic).  So I can't dismiss that 
> > > >possibility.
> > >
> > >Wonder if it could be a sort of juvenile quilling, and not 
> just soft 
> > >down?  Oh well, I have no idea.
> > >Pictures would definitely help here.
> > 
> > The filaments don't look like the adult quills, so I'd say no.  But 
> > who knows.
> > 
> > Mickey Mortimer
> > 
> > 
> >