Eurypterid cast replica
Eurypterids (sea scorpions) are an extinct group of arthropods related to arachnids, which include the largest known arthropods that ever lived. They are members of the extinct class Eurypterida (Chelicerata). The word Eurypterid comes from the Greek word eury meaning "broad" or "wide" and the Greek word pteron meaning "wing". The largest, such as Jaekelopterus, reached 2 metres (6 ft 7 in) or more in length, but most species were less than 20 centimetres (8 in). They were formidable predators that thrived in warm shallow water in the Ordovician to Permian. Although informally called "sea scorpions", only the earliest ones were marine (later ones lived in brackish or freshwater), and they were not true scorpions. According to theory, the move from the sea to fresh water probably occurred by the Pennsylvanian period.
Domain: Eukarya, Kingdom: Animalia, Phylum: Arthropoda, Subphylum: Chelicerata, Class: Merostomata, Order: Eurypterida
Cast measures 8.25 x 6 inches
This specimen of Eurypterid is from the Bertie Group, Silurian Age of New York.
$49.00 (plus shipping)
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