File:Gobioolithus Minor Section.jpg
Petrographic thin sections of avian and non-avian theropod eggshells from the Upper Cretaceous. Gobioolithus minor Mikhailov, 1996a (ZPAL MgOv-III/11b), horizontal lines at left
mark, from bottom to top, the boundaries between the mammillary layer, squamatic zone, and an outer recrystallized zone, possibly representing either
diagenetic overgrowth or an altered biological external zone.
Date
Source
Varricchio, D.J. and Barta, D.E. (2015) "Revisiting Sabath’s “Larger Avian Eggs” from the Gobi Cretaceous." Acta Palaeontologica Polonica 60 (1): 11–25.
Author
David J. Varricchio and David E. Barta
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