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

Dinosaurs near KT boundary in China and more new papers



From: Ben Creisler
bh480@scn.org

A few new papers not mentioned yet:

Xiao Jun Jiang, Yong Qing Liu, Shu An Ji, Xing Liao Zhang and Li Xu, et al.
(2011)
Dinosaur-bearing strata and K/T boundary in the Luanchuan-Tantou Basin of
western Henan Province, China.
SCIENCE CHINA Earth Sciences (advance online publication) 
DOI: 10.1007/s11430-011-4186-1 
Free pdf at: http://www.springerlink.com/content/d05383q43w4gl8x3/

The sequence stratigraphy and geochronology of the terrestrial
dinosaur-bearing strata, i.e., the Qiupa Formation, were poorly studied in
the Luanchuan-Tantou Basin in western Henan, China. This study shows that
these strata represent a complete succession from the Late Cretaceous to
the early Paleogene, including the K/T boundary, in this area. Here we
report a detailed study of the K/T boundary, especially its stratigraphic
sequence, sedimentary characteristics, integrity, continuity, and
geological implications. 

===
Rui M.S. Martins, Felix Beckmann, Rui Castanhinha, Octávio Mateus and
Philipp Klaus Pranzas (2011)
Dinosaur and Crocodile Fossils from the Mesozoic of Portugal: Neutron
Tomography and Synchrotron-Radiation Based Micro-Computed Tomography.
MRS Proceedings (2011) 1319: mrsf10-1319-ww02-03 
Materials Research Society Fall Meeting
DOI: 10.1557/opl.2011.794
http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=827
9206&fulltextType=RA&fileId=S1946427411007949

Abstract

Portugal is ranked within the 10 countries with the most dinosaur taxa and
the Lourinhã Formation is known by the Late Jurassic findings of dinosaurs
and other fossils. In many cases, studies of the external morphological
characteristics of the fossils are not sufficient to extract all the
information for a paleontological study and, thus, observations of internal
structures, using non-destructive techniques, are required. The fossils
studied in the present work belong to the Museum of Lourinhã. The access to
the Geesthacht Neutron Facility in Germany allowed us to characterize a jaw
of the dinosaur Baryonyx walkeri specimen and the jaw of a crocodile
(possibly a Tomistomidae) by Neutron Tomography. The study allowed us to
detect the presence of teeth inside the jaws and it provides valuable
information about the development of its dental characteristics.
Synchrotron radiation based micro-computed tomography studies on tiny
samples have been performed at the beamline HARWI II operated by the
Helmholtz-Zentrum Geesthacht at the storage ring DORIS III at the Deutsches
Elektronen?Synchrotron DESY in Hamburg, Germany. The first data recorded
for eggshells collected in the Lourinhã Formation is shown. It allowed us
to visualize the morphology of the pores and their connectivity in the
eggshells, providing information that is either exceedingly difficult or
impossible to obtain by traditional methods based on section cutting.

==

Also, the new Acta Palaeontologica Polonica is up online with a couple of
dinosaur papers mentioned a few months back on the DML but now official
about Buitreraptor teeth and Triassic theropod tracks:

http://app.pan.pl/issue.html?issue=current



--------------------------------------------------------------------
mail2web - Check your email from the web at
http://link.mail2web.com/mail2web