Xiphosurida

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Xiphosurida [‚zif·ə′su̇r·ə·də]

(invertebrate zoology)

A subclass of primitive arthropods in the class Merostomata characterized by cephalothoracic appendages, ocelli, book lungs, a somewhat trilobed body, and freely articulating styliform telson.

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No references found			KEY WORDS: horseshoe crab trackway, Silurian, Bloomsburg Red Beds, New Jersey INTRODUCTION Ancestral horseshoe crabs (Class Merostomata, Order Xiphosurida, Suborder Synziphosurina), often found associated with eurypterids in Silurian and Devonian strata, are sporadically represented in the geologic column (Stormer, 1955). First record of a horseshoe crab trackway from the Bloomsburg Red ... by Metz, Robert / Bulletin of the New Jersey Academy of Science			XIE Xigazê Xikang Xilinx Netlist Format Xilinx, Inc. Ximenes Ximenez de Cisneros, Francisco Ximénez de Cisneros, Francisco Xingu Xingu River Xinhui Xining Xinjiang Xinjiang Uygur Xinyang Xiongnu XIP Xipe Totec xiphidio cercaria Xiphiidae Xiphion xiphisternum Xiphodontidae Xiphopagus Xiphosura Xiphosurida Xiphydriidae Xirgu, Margarita XIST Xiuhtecuhtli Xiwangmu XJACK XL XL abc's XL Adding shapes XL Adding worksheets XL Averaging numbers XL Change row and column dimensions XL Charts XL Cut, Copy and Paste XL Delete data in cells XL Delete row/column XL Edit a formula XL Enter date/time XL Erase data in cells XL Insert row/column XL Loan payments XL Rename worksheets XL Sort lists XLANG Xlib			Xiphoid bone Xiphoid bone xiphoid cartilage xiphoid cartilage xiphoid cartilage xiphoid cartilages xiphoid cartilages xiphoid process xiphoid process xiphoid process xiphoid process xiphoid processes xiphoid processes Xiphoideus Xiphoideus Xiphoidian xiphoiditis xiphopagus xiphopagus Xiphophorous Xiphophorus Xiphophorus Xiphophorus Genetic Stock Center Xiphophorus Melanoma Receptor Kinase Xiphophyllous Xiphosura Xiphosura Xiphosura americana Xiphosura americana xiphosuran Xiphosurida Xiphosurus polyphemus Xiphura Xiphydriidae XIPO Xippe Totec XIPS XIPT Xiqing Economic Development Area Xir XIRD Xirdalan Xirgu, Margarita XIRQL XIRS XIS XIS XIS XIS Xisbiga Hantiwadaagga Kacaanka Soomaaliyeed Xisha Xisha Island Xisha Islands Xisha Qundao Xishan Primary School Xishuangbanna Dai Xishuangbanna Tropical Botanical Garden XISM

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