What is another word for eurypterid?
Pronunciation: [jˈuːɹɪptəɹˌɪd] (IPA) 
Eurypterid, also known as sea scorpion, is an extinct group of arthropods that lived in freshwater and marine environments during the Paleozoic era. There are a few synonyms for the term eurypterid, such as water scorpion, merostome, and gigantostracan. The term water scorpion is given due to its resemblance to the modern water scorpion, a type of insect that lives in freshwater habitats. The name merostome is derived from the Greek words "meros" meaning part and "stoma" meaning mouth, which refers to the segmented mouthparts of these arthropods. Lastly, the term gigantostracan means giant carapace, which refers to their large exoskeletons.
