Eurypterida

Translingual

Etymology

Eurypterus +‎ -ida

Proper noun

Eurypterida

  1. A taxonomic class within the phylum Arthropoda – sea scorpions, eurypterids, that becamse extinct around the Permian–Triassic extinction event (c. 250 million years ago).

Hypernyms

Hyponyms

References