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These lovely earrings are inspired by the fossil Cymatiosphaera. Cymatiosphaera is a species of Acritarch, an organic microfossil from the Neogene period. Some Acritarchs are thought to be fossilized cysts of dinoflagellates, a type of marine plankton with two flagella that propel it through the water. Dinoflagellate cysts, like bacterial spores, are a dormant zygotic form of the organism that waits around until conditions are right to revive, and are therefore plentiful among marine sediment microfossils. Cymatiosphaera was first identified from samples taken from the deep water Porcupine Basin off the coast of Ireland by Quaijtaal et al (Palynology 39:37-55, 2015).

The jewelry is created by 3D-printing in wax followed by metal casting in solid bronze, solid brass or solid sterling silver. The Cymatiosphaera earrings are lightly polished after casting to give them a smooth glossy texture on the exterior surfaces while retaining texture on the interior.

To prevent waste and overstock, the jewelry is not made until you order. Please allow 3-4 weeks for printing and shipping. All items are gift-wrapped in original, recyclable Ontogenie packaging and then shipped insured by registered mail, worldwide.

The earrings will be assembled with nickel-free rose gold-plated, gold-plated or non-plated sterling silver earring hooks depending on whether you order the bronze, brass or silver earrings, respectively.

The earrings are 1.55cm in diameter, and each earring weighs 5.4 g. Matching pendant can be purchased here: http://etsy.me/2fCazsN

Frequently asked questions about Ontogenie

All of my designs are achieved by 3D-printing combined with lost wax casting. If I have the piece you want in stock, I can usually ship it the next day. If it isn't in stock, please allow 3 weeks for printing until I can ship it.
Are you fond of an organism, but don't see it in my collection? Let me know, I look forward to hearing from you. ontogenie3d@gmail.com
All of my pieces are gift wrapped in Ontogenie recycled paper boxes containing shredded wood and finished with twine.

Fossil Acritarch Cymatiosphaera Earrings - Paleontology - Science Jewelry in bronze, brass & silver



  • Handmade item
  • Materials: silver, bronze, brass
  • Made to order
  • Ships worldwide from Germany
  • Feedback: 35 reviews
  • Favorited by: 13 people