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

She's Out Of My New Papers

Torres-Rodríguez, E., Montellano-Ballesteros, M., Hernández-Rivera, R., and
Benammi, M. 2010. Dientes de terópodos del Cretácico Superior del Estado de
Coahuila, México. Revista Mexicana de Ciencias Geológicas 27(1):72-83.

ABSTRACT: In Mexico, the theropods represents a poorly known group of
dinosaurs, the scarce material had been referred only to ?family? level. As
a result of paleontological research carried on in the State of Coahuila,
dental remains belonging to theropods were recovered. The identified genera
are Saurornitholestes, cf. Troodon, as well as Tyrannosauridae and an
indeterminate theropod. The theropod diversity of Coahuila is similar to
that described for the Big Bend National Park, Texas, confirming the
existence of a distinct dinosaurian biogeographic province in the southern
Great Plains of North America. If the presence of Troodon at this latitude
is confirmed, it would suggest that the geographic distribution of this
theropod genus was much wider than previously supposed.

Balanoff, A.M., Bever, G.S., and Ikejiri, T. 2010. The braincase of
Apatosaurus (Dinosauria: Sauropoda) based on computed tomography of a new
specimen with comments on variation and evolution in sauropod neuroanatomy.
American Museum Novitates 3677:1-32.

ABSTRACT: We describe a previously unreported braincase of the sauropod
dinosaur Apatosaurus  from the Cactus Park Quarry, Morrison Formation of
western Colorado using high-resolution X-ray computed tomography. The
digital nature of these data allowed us to prepare and describe the first
three-dimensional rendering of the endocranial space in this historically
important dinosaur species. Results are compared with a range of taxa drawn
from across the sauropod tree revealing previously underappreciated
variation in the sauropod neurocranium. Examples of variable characters
include the degree of cerebral and pontine flexure, the morphology of the
parietal body and superior sagittal sinus and their relationship with the
overlying dermal roof, and the conformation of several cranial nerve
foramina. We provide preliminary evolutionary hypotheses and discussion for
many of these features. The recognition that considerable variation is
present in the sauropod neurocranium hopefully will encourage more detailed
descriptions of this anatomically complex region, as well as facilitating a
synthetic review of the sauropodomorph braincase as these descriptions
become available.

Mannion, P.D. 2009. Review and analysis of African sauropodomorph dinosaur
diversity. Palaeontologia Africana 44:108-111. 

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

"I have noticed even people who
claim everything is predestined, and
that we can do nothing to change it,
look before they cross the road."

                   -- Stephen Hawking

"Prediction is very difficult,
especially of the future."

                   -- Niels Bohr