A New Enantiornithine from the Yixian Formation with the First Recognized Avian Enamel Specialization

Jingmai K. O'Connor; Yuguang Zhang; Luis M. Chiappe; Qingjin Meng; Li Quanguo; Liu Di

doi:10.1080/02724634.2012.719176

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1 January 2013 A New Enantiornithine from the Yixian Formation with the First Recognized Avian Enamel Specialization

Jingmai K. O'Connor, Yuguang Zhang, Luis M. Chiappe, Qingjin Meng, Li Quanguo, Liu Di

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J. of Vertebrate Paleontology, 33(1):1-12 (2013). https://doi.org/10.1080/02724634.2012.719176

Abstract

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.

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Jingmai K. O'Connor, Yuguang Zhang, Luis M. Chiappe, Qingjin Meng, Li Quanguo, and Liu Di "A New Enantiornithine from the Yixian Formation with the First Recognized Avian Enamel Specialization," Journal of Vertebrate Paleontology 33(1), 1-12, (1 January 2013). https://doi.org/10.1080/02724634.2012.719176

Received: 20 February 2012; Accepted: 1 July 2012; Published: 1 January 2013

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