Description
2 Fossilized Urchins / Sand Dollar, Encope & Clypeaster: Ancient Seas, Mexico, Baja, Pliocene period, ca. 7 million years ago; Western Europe, Italy, Tropea, Miocene period, 23 to 5 million years ago. A fine pair of fossilized echinoderms, prehistoric sea urchins. The first is an extinct species of sand...