Re: Sinornis and Cathayornis

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

Daniel Bensen (dbensen@bowdoin.edu) wrote:

<So Cathayornis has been sunk into Sinornis.  Is the ex-holotype for
Cathayornis considered a different species from Sinornis (I suppose it would be
Sinornis yandica).  Or is it now just a different specimen of Sinornis
santensis?>

  The holotype of a species does not cease to be a holotype when the nominative
species is synonymized. Sereno proposes that the two species, *C. yandica* and
*S. santensis,* are the same species, so the holotype of *C. yandica* is (while
remaining a holotype) is a referred specimen of *S. santensis.* I think *C.
caudatus* was considered a juvenile of *C. yandica,* else otherwise it's a
nomen dubium (as is *C. yandica*) and not considered a equivalent species.

  Cheers,

Jaime A. Headden

  Little steps are often the hardest to take.  We are too used to making leaps 
in the face of adversity, that a simple skip is so hard to do.  We should all 
learn to walk soft, walk small, see the world around us rather than zoom by it.

"Innocent, unbiased observation is a myth." --- P.B. Medawar (1969)


                
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