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

Anhanguera (Pterosauria) -- myological reconstruction of pelvic girdle (free pdf)

From: Ben Creisler

A new paper:

Fabiana Rodrigues Costa, Oscar Rocha-Barbosa & Alexander Wilhelm Armin
Kellner (2014)
Myological reconstruction of the pelvic girdle of Anhanguera piscator
(Pterosauria: Pterodactyloidea) using three-dimensional virtual
Revista Brasileira de Paleontologia 17(1): 11-21
doi: 10.4072/rbp.2014.1.02

Despite muscular reconstructions of fossil vertebrates that have been
performed for many years, sites of origin and attachment of muscles
are rarely visible because their preservation on bones relies upon
favorable circumstances. Limited attempts at reconstructing the pelvic
muscles of pterosaurs have been made, but there is no report in the
literature concerning a full detailed description of the pelvic girdle
musculature of these fl ying reptiles. Thus, the aim of this study is
to perform the reconstruction of the pelvis and hind limb myology in
Anhanguera piscator Kellner & Tomida using the Extant Phylogenetic
Bracket Method and advanced three-dimensional computer graphics, a
methodological approach that has not yet been used for this purpose.
Each muscle from the dorsal and ventral groups was individually
reconstructed and outlined in the osteological model as lines whose
ends represent their sites of origin and attachment in the bone. The
authors used the Extant Phylogenetic Bracket Method to study these
muscles in a more detailed way considering their divisions, such as
Mm. iliotibiales 1-3, M. iliofemoralis externus/M. iliotrochantericus
caudalis, and Mm. flexores tibiales internus 1-4.