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Dinosauromorphs paper in Japanese ( free pdf!)



From: Ben Creisler
bcreisler@gmail.com

A new paper in Japanese in Memoir of the Fukui Prefectural Dinosaur
Museum. The pdf is free!


Tai Kubo (2011)
Evolution of bipedality and herbivory among Triassic dinosauromorphs.
Memoir of the Fukui Prefectural Dinosaur Museum 10: 55-62.
http://www.dinosaur.pref.fukui.jp/archive/memoir/memoir010-055.pdf

Abstract
Discoveries of Triassic non-dinosaur dinosauromorphs since 2000
revealed that they were more widely spread chronologically and
geographically than previously thought. A member of silesaurids, the
sister clade of dinosaurs, Silesaurus was a quadrupedal and
herbivorous animal that differs considerably from the condition
previously assumed for the ancestor of dinosaurs that are bipedal and
carnivorous. Currently, stance and diet of the common ancestor of
dinosaurs are not clear. To redeem this situation, Ancestral State
Reconstruction methods were conducted to infer how quadrupedality and
herbivory were evolved among dinosauromorphs. The results of analyses
indicate that quadrupedal stance evolved only among silesaurids.
Herbivorous diet was readily evolved from carnivorous diet among
Dinosauromorpha and the ancestral state reconstruction using
likelihood methods indicated that the possibility of the common
ancestor of dinosaurs being herbivore is more than 60%.