These bizarre fossil oysters from Madagascar are rare and only recently available. Giant specimen 14 x 6 x 4 cm Discover a stunning piece of prehistoric history with this large fossil specimen of Alectryonia ungulata, a bivalve that lived during the Cretaceous period, approximately 100 million years ago. This impressive fossil is a must-have for collectors, educators, and enthusiasts of natural history. Species: Alectryonia ungulata Age: Cretaceous Period (~100 million years old) Origin: Madagascar Features: Excellent preservation with clearly visible ribbed shell structure Natural coloration with minimal restoration Distinctive curved, hoof-like shape (hence the name “ungulata”) A striking display piece for a shelf, desk, or cabinet of curiosities Ideal For: Fossil collectors Educational institutions and museums Interior decor with a natural history or vintage theme Unique gifts for science lovers This rare and authentic fossil offers a tangible connection to the ancient marine ecosystems of the Cretaceous seas. Add a genuine piece of Earth’s geological past to your collection today!