[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
New Papers & Julia
All these are available free at
http://www.zin.ru/journals/trudyzin/eng/contents.html.
Averianov, A.O., and Krasnolutskii. 2009. Stegosaur remains from the Middle
Jurassic of west Siberia. Proceedings of the Zoological Institute of the
Russian Academy of Sciences 313(2):153-167.
ABSTRACT: The Middle Jurassic (Bathonian) Itat Formation at Berezovsk Quarry,
Krasnoyarsk Territory (West Siberia, Russia) has produced abundant remains of
stegosaurs. Numerous isolated teeth are found at various microvertebrate sites,
and associated skeletal remains, mostly vertebrae, ribs, and ilio-sacral block
fragments were excavated at the Stegosaur Quarry. These remains likely belong
to one taxon which is characterized by numerous secondary ridges on one crown
side in cheek dentition, six vertebrae in the synsacrum, four sacral and one
dorsosacral ribs, lack of dorsal process on the transverse process in anterior
caudals, moderately expanded tops of the neural spines in anterior caudals, and
large triangular transversely thin dorsal dermal plates. The combination of
these and other features is not characteristic for any other known stegosaur
taxon and the Berezovsk stegosaur likely represents a new taxon. Among known
stegosaurs it is most similar with Stegosaurus from the Late Jurassic and Early
Cretaceous of North America and Asia by having numerous secondary ridges on
teeth, a right angle between the supraacetabular flange and the anterior iliac
process of ilium and in the structure of the dorsal dermal plates. It differs
from Stegosaurus by plesiomorphically unexpanded tops of the neural spines and
lack of dorsal process on the transverse processes in the anterior caudal
vertebrae. The Berezovsk stegosaur is among the oldest stegosaurs in the fossil
record.
Danilov, I.G., and Syromyatnikova, E.V. 2009. New material on turtles of the
family Nanhsiungchelyidae from the Cretaceous of Uzbekistan and Mongolia, with
a review of the nanhsiungchelyid record in Asia. Proceedings of the Zoological
Institute of the Russian Academy of Sciences 312(1/2):3-25.
ABSTRACT: This paper presents a review of all known records of turtles of the
family Nanhsiungchelyidae in Asia, includingdata from 37 localities. Among new
materials described herein are remains of nanhsiungchelyids (Hanbogdemys sp. 1
and 2 and Nanhsiungchelyidae indet. 1–10) from 12 Early and Late Cretaceous
localities of Mongolia and Uzbekistan. Nanhsiungchelyidae from the Early
Cretaceous (Aptian–Albian) of Mongolia are reported for the first time.
Reassessment of the published data on Asian nanhsiungchelyids allows us to
change taxonomic status of many previous findings from Basilemys sp. or
Zangerlia sp. to Nanhsiungchelyidae indet. In addition, we refer Bulganemys
jaganchobili to Hanbogdemys. The latter genus thus has the widest temporal
distribution (from Cenomanian to Campanian) among nanhsiungchelyids in Asia.
Our analysis of the nanhsiungchelyid record in Asia shows that the record is
richest in the Cenomanian–Campanian of Mongolia, whereas the Maastrichtian
record from Mongolia should be considered questionable. These facts emphasize
the particular importance of the Mongolian record of nanhsiungchelyids for
understanding the diversification and evolution of this group.
Syromyatnikova, E.V., and Danilov, I.G. 2009. New material and a revision of
turtles of the genus Adocus (Adocidae) from the Late Cretaceous of middle Asia
and Kazakhstan. Proceedings of the Zoological Institute of the Russian Academy
of Sciences 313(1):74-94.
ABSTRACT: This paper reviews shell material of the turtle genus Adocus
(Adocidae) from the Late Cretaceous of Middle Asia and Kazakhstan. Three
previously recognized species of Adocus from this area are described in detail
based on published and new material. The previously recognized species are A.
aksary (Dzharakuduk, Uzbekistan; late Turonian), A. foveatus (Kansai,
Tajikistan; early Santonian), and A. kizylkumensis (Khodzhakul, Khodzhakulsay
and Sheikhdzheili, Uzbekistan; early Cenomanian). Material of additional forms
of Adocus are described, two of these are named as new species: Adocus
dzhurtasensis, sp. nov. (Dzhurtas, Kazakhstan; Santonian – early Campanian),
Adocus bostobensis, sp. nov. (Akkurgan, Baybishe, Buroinak, and Shakh-Shakh,
Kazakhstan; Santonian – early Campanian), and Adocus sp. indet. (Itemir,
Uzbekistan; Cenomanian).
Skutschas, P.P., Martin, T., and Sun, G. 2009. The co-occurrence of
non-lissamphibian temnospondyls and salamanders in the Late Jurassic of the
southern Junggar Basin (Xinjiang Autonomous Region, NW China). Proceedings of
the Zoological Institute of the Russian Academy of Sciences 313(2):143-148.
ABSTRACT: So far, the Jurassic co-occurrence of non-lissamphibian temnospondyls
and early temnospondyl lissamphibians was known only for the Middle Jurassic
Balabansai Svita in the Fergana Depression, Kyrgyzstan and the Peski Quarry
near Moscow, Russia. Here we report the co-occurrence of non-lissamphibian
temnospondyls and lissamphibians (salamanders) from the Late Jurassic
(Oxfordian) Qigu Formation of the Liuhuanggou locality in the southern Junggar
Basin, China. This represents a considerable temporal and geographical range
extension for the nonlissamphibian temnospondyl-early lissamphibian faunal
association.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Jerry D. Harris
Director of Paleontology
Dixie State College
Science Building
225 South 700 East
St. George, UT 84770 USA
Phone: (435) 652-7758
Fax: (435) 656-4022
E-mail: jharris@dixie.edu
and dinogami@gmail.com
http://cactus.dixie.edu/jharris/
"Experience is what you get when
you didn't get what you wanted."
-- unknown