Additional
Information: The Merostomata includes two distinct groups of marine organisms, the eurypterids (an extinct group that lived 200 to 500 million years ago) and the horseshoe crabs. The horseshoe crabs are also an ancient group; only 4 or 5 species (depending on who's co
Merostomata Sites:
The Horseshoe Crab - Limulus polyphemus The Horseshoe Crab - Limulus polyphemus: Brief profile of species biology and ongoing research, with a photo. (Merostomata) http://marylandfisheries.fws.gov/horseshoe_crab.htm
Merostomata Merostomata: Brief description of the class, from the Animal Diversity Web. (Merostomata) http://animaldiversity.ummz.umich.edu/arthropoda/merostomata.html
Additional
Information: The Merostomata includes two distinct groups of marine organisms, the eurypterids (an extinct group that lived 200 to 500 million years ago) and the horseshoe crabs. The horseshoe crabs are also an ancient group; only 4 or 5 species (depending on who's co
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