Mid-Cretaceous amber inclusions reveal morphogenesis of extinct rachis-dominated feathers
Abstract
We describe three-dimensionally preserved feathers in mid-Cretaceous Burmese amber that share macro-morphological similarities (e.g., proportionally wide rachis with a “medial stripe”) with lithic, two-dimensionally preserved rachis-dominated feathers, first recognized in the Jehol Biota. These feathers in amber reveal a unique ventrally concave and dorsoventrally thin rachis, and a dorsal groove (sometimes pigmented) that we identify as the...
Paper Details
Title
Mid-Cretaceous amber inclusions reveal morphogenesis of extinct rachis-dominated feathers
Published Date
Dec 2, 2019
Journal
Volume
9
Issue
1
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