Upper Cretaceo Period, c.99 million years BP. A polished piece of Burmese amber containing a dinosaur feather, showing clear feather vanes, from the era when the dinosaurs were the predominant feather-bearing creatures; mounted in a membrane display case. See Xing, L., Cockx, P., McKellar, R., Disassociated feathers in Burmese amber shed new light on mid-Cretaceo dinosaurs and avifauna, Gondwana Research, 2020, vol.18. 22 grams, 70mm including case; amber: 0.1 grams, 12mm (2 3/4"). From Burma. Private Shropshire collection. Apanied by a memory stick with professional macro photographs.