Lower Cretaceous (112 million years ago) - Crato Formation, Nova Olinda Member, Ceara, Brazil.
This wonderfully preserved fossil damselfly (Suborder: Zygoptera) was found in the world-famous Crato Formation, near Ceara, Brazil. It dates back to the Lower Cretaceous, about 112 million years ago (Late Aptian or Lower Albian).
Locality: Santana - Crato Formation, Nova Olinda Member, Ceara, Brazil.
The level of detail is excellent and there is absolutely no restoration.
This is an very rare type of insect from the region.
Matrix measures 4 x 4 x 0.2 inches (10 cm x 10 cm x 0.5 cm). Specimen measures 7/8 inches long (2.2 cm).
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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 500 kilometers 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 112 million years ago (Late Aptian or Lower Albian).
The common insects fossilized in the Crato beds include crickets and grasshoppers (Orthoptera), the ubiquitous cockroach (Blattaria) and the true bugs (Hemiptera), Certain groups of insects are rare in the formation including beetles and moths.
Many of the fossil insects of the Crato are preserved in goethite – hydrated iron oxide. Some of these fossils can be prepped by dissolving layers of the surrounding limestone with acetic acid (vinegar) to expose the exquisite details hidden with the rock.
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