New papers

["George Mirantsev" <georgemirantsev@mail.ru>]

Here are several new papers from Paleontological Institute:
 
New Archosaurs from the Jurassic of Siberia and Mongolia 
S. M. Kurzanov, M. B. Efimov, and Yu. M. Gubin 
Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya ul. 123, 
Moscow, 117997 Russia 
email: vg@paleo.ru 
Received August 27, 2001 
Abstract New finds of crocodiles and dinosaurs from the Late Jurassic deposits 
of southwestern Mongolia 
(Shar-Teg locality) and Eastern Siberia (basin of the Vilyui River, Teete 
locality) are described. A new species 
of small-sized running crocodiles, Nominosuchus arcanus, characterized by a 
small number of teeth is 
described from the Shar-Teg locality on the basis of the anterior parts of the 
skull. A Jurassic assemblage of 
dinosaurs, including Stegosaurus sp., sauropods resembling Camarasaurus, and 
predatory theropods, includ-
ing Allosaurus sp., is established for the first time on the basis of the 
material from the Teete locality in Siberia. 
This corroborates the presence of the zoogeographic relationship between the 
North American and Siberian fau-
nas at that time.

On the Find of a Primitive Hadrosauroid Dinosaur (Ornithischia, 
Hadrosauroidea) in the Cretaceous of the Belgorod Region 
M. S. Arkhangelsky* and A. O. Averianov** 
*Geological Faculty of the Saratov State University, Astrakhanskaya ul. 83, 
Saratov, 410026 Russia 
**Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, 
St. Petersburg, 199034 Russia 
e-mail: dzharakuduk@yahoo.com 
Received May 25, 2001 
Abstract An isolated maxillary tooth and opisthocoelous anterior thoracic or 
posterior cervical vertebral cen-
trum of a duck-billed dinosaur, Hadrosauroidea indet., are described. These 
parts originate from the marine 
Albian Cenomanian deposits of the Stoilo iron ore quarry near the town of 
Staryi Oskol, Belgorod Region. This 
is the oldest record of a hadrosauroid dinosaur in Eastern Europe and one of 
the oldest representatives of this 
group in the world.