Lower Cretaceous Period, 110 million years BP. A fossil lacewing Neuroptera sp. with a quantity of larvae on a matrix. 165 grams, 90mm (3 1/2"). From an old Lincolnshire collection 1980s; from the Crato Formation, near Ceara, Brazil. The Crato Formation of Brazil is a world-famous site for an incredible diversity of outstanding fossil insects, rare invertebrates including arachnids (spiders and scorpions, centipedes), amazing fish fossils (many preserved in concretions as complete three-dimensional fish), plants and even pterosaurs. Located about 500km inland from the coast, the Crato beds are exposed on the north and eastern parts of a flat plateau, the Chapada do Araripe, surrounded by the present-day towns of Nova Olinda, Crato and Exu. Fossil insects are primarily found in the laminated limestones of the bottom section of the Crato Formation known as the Nova Olinda Member. They date back to the Lower Cretaceous about 110 million years ago (Late Aptian or Lower Albian"). [No Reserve]