Re: Shar Tsav age

["David Marjanovic" <david.marjanovic@gmx.at>]

>    Recently it has been suggested that the Shar Tsav locality is of
> Nemegtian age. Does anyone know why?

No. The paper I have says "The age of the deposits is considered to be the
Djadokhta", but it's not exactly new. Identifiable fossils are *Avimimus*
and *Quaesitosaurus*, everything else (including eggshells) is fragmentary.
Maybe someone correlated *Q.* to *Nemegtosaurus*? I haven't found a mention
of tracks in the paper, but I haven't read it carefully so far.

M. F. Ivakhnenko, S. M. Kurzanov: Geological structure and age of Udan-Sair
and Shara-Tsav localities, 100 -- 105 in Ye. N. Kurochkin (responsible
editor): Fossil reptiles and birds of Mongolia. The joint Soviet-Mongolian
palaeontological expedition transactions 34, Nauka 1988 (in Russian with a
very short English summary; the Mongolian table of contents spells Üüden
sayr and Shar tsav).