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Re: Sulcavis, new enantiornithine bird from China (free pdf)

From: Ben Creisler

The new Jan. 2013 issue of the JVP is online now.


The Sulcavis paper is free.

Jingmai K. O’Connor, Yuguang Zhang, Luis M. Chiappe, Qingjin Meng, Li
Quanguo & Liu Di (2013)
A new enantiornithine from the Yixian Formation with the first
recognized avian enamel specialization
Journal of Vertebrate Paleontology 33(1):1-12

We report on a new enantiornithine bird, Sulcavis geeorum, gen. et sp.
nov., from the Jehol Group of northeastern China. The fossil preserves
robust teeth with longitudinal grooves radiating from the occlusal tip
preserved in the enamel on the lingual surface. This is the first
known occurrence of specialized tooth enamel within Aves. Compared
with other Mesozoic groups, stomach contents are hardly ever preserved
within enantiornithine specimens; therefore, this new tooth morphology
reveals new evidence regarding the diversity of trophic niches
occupied by the clade.