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The Man With Two New Papers
A couple of new things -- thanks to XL and RI for finding (or writing!)
Yates, A.M. 2008. A second specimen of Blikanasaurus (Dinosauria: Sauropoda)
and the biostratigraphy of the lower Elliot Formation. Palaeontologia
ABSTRACT: A second specimen of the rare basal sauropod Blikanasaurus
cromptoni, is recorded from a site in the Ladybrand district of the Eastern
Free State, South Africa. The specimen consists of a right metatarsal 1 that
originated from the upper 20mof the lower Elliot Formation. It can be
referred to B. cromptoni on the basis of its small size and highly robust
proportions, which distinguish this taxon from all other sauropodomorphs.
This record extends the geographic distribution of B. cromptoni north into
the region of the main Karoo Basin where the Elliot Formation is
dramatically thinner. It also extends the known stratigraphic range of B.
cromptoni up from the base of the Elliot Formation into a position near the
top of the lower member. This new record, combined with other new
discoveries, supports the hypothesis that the thin northern part of the
lower Elliot Formation is a condensed section that is largely, if not
entirely, coeval with the thicker southern sections.
Xing, L.-D., Peng, G.-Z., and Shu, C.-K. 2008. Stegosaurian skin impressions
from the Upper Jurassic Shangshaximiao Formation, Zigong, Sichuan, China.
Geological Bulletin of China 27(7):1049-1053.
ABSTRACT: A skin impression fossil of Gigantspinosaurus sichuanensis was
found in the Upper Jurassic Shangshaximiao Formation in Zigong, Sichuan. The
fossil, preserved on the dorsal face of the left shoulder, clearly shows
scales of Gigantspinosaurus sichuanensis. These scales are generally
arranged as a net, and most of them are pentagonal, a few being
quadrilateral and hexagonal. The maximum inner radius of most scales range
from 5.7 to 9.2 mm. The scales are connected with each other by grooves.
Scattered within small scales are a few pentagonal or hexagonal large
scales, ewith each large scale surrounded by 13-14 scales. The surface of
the scales is rough with string-like ridges. The stringy ridge on the scales
made the surface of the scales uneven and thus may reduce the glare caused
by reflected light. Based on the primary burial location and distribution of
the scales, the authors believe that the skin impression fossil of
Gigantspinosaurus sichuanensis is from the elbow of the forelimb, relevant
upper arm and lateral area of the body.
Jerry D. Harris
Director of Paleontology
Dixie State College
225 South 700 East
St. George, UT 84770 USA
Phone: (435) 652-7758
Fax: (435) 656-4022
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