INVERTEBRATE ZOOLOGY IN THREE BOOKS - BOOK 2 - G.Y. Shcherbak - 1996
PHYLUM ARTHROPODA
SUBPHYLUM CHELICERATA
CLASS MEROSTOMATA
Merostomata are a group of aquatic chelicerates that breathe using gills. They include the extinct Paleozoic eurypterids (Eurypterida) and the extant horseshoe crabs (Xiphosura).
Last update: 13/08/2026
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