eurypterid; sea scorpion
Refers to an extinct group of aquatic arthropods from the Paleozoic era; a technical term in paleontology.
Eurypterids were giant arthropods that lived during the Paleozoic era.
Katakana spelling is standard for this extinct marine arthropod; the kanji form 海蠍 is rare.
Kanji spelling is rare and may not be recognized by many readers; the katakana form is strongly preferred.
Compound of 海 (umi, 'sea') and サソリ (sasori, 'scorpion'), literally 'sea scorpion', a calque of the English name.