Resin hardened into amber gives AMNH paleontologists a look at fossilized insects and plants as prehistoric as the Cretaceous period.
Basal Cyclorrhapha in Amber from the Cretaceous and Tertiary(Insecta: Diptera), and Their Relationships: Brachycera in Cretaceous Amber Part IX
Had been dinosaurs warm-blooded or cold-blooded? - STUFFSHELF
Prehistoric species of mayfly found encased in amber
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American Museum of Natural History — Insects evolved at least 420 million years ago
Fossils in Burmese amber offer an exquisite view of dinosaur times—and an ethical minefield, Science
4,800+ Amber Fossil Stock Photos, Pictures & Royalty-Free Images - iStock
Amber fossils unlock true color of 99-million
Amber from the Triassic to Paleogene of Australia and New Zealand as exceptional preservation of poorly known terrestrial ecosystems
4,800+ Amber Fossil Stock Photos, Pictures & Royalty-Free Images - iStock
What Is Amber? Ancient Carved Ambers in the J. Paul Getty Museum
Photomicrographs of Miocene butterflies in Dominican amber. a. Female
DOMINICAN FOSSIL AMBER Collector Series by American Museum of Natural History
Trapped in time: The top 10 amber fossils