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Temporal range: Carboniferous
Euproops danae.jpg
Euproops danae
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Xiphosura
Order: Xiphosurida
Suborder: Bellinurina
Family: Euproopidae
Genus: Euproops
  • Prestwichia Woodward, 1867
  • Prestwichianella Cockerell, 1905

Euproops is an extinct genus of xiphosuran, related to the modern horseshoe crab. It lived in the Carboniferous.

The Treatise on Invertebrate Paleontology describes Euproopidae as "small forms with wedge-shaped cardiac lobe bordered by distinct axial furrows, abdominal shield with annulated axis bearing a high boss on last segment." The same source describes Euproops as follows. "Prosoma with flat genal spines and carinate opthamalic spines; cardiopthamalic region with or without intercardiopthamalic area; abdomen with raised pleural ridges that cross flattened rim and are prolonged as marginal spines; annulated axis with knob on 1st and 3rd segments and elevated boss or short spine on hindmost segment; telson long. [2]"


  1. ^ Dunlop, J. A., Penney, D. & Jekel, D. 2015. A summary list of fossil spiders and their relatives. In World Spider Catalog. Natural History Museum Bern, online at, version 16.0
  2. ^ Størmer, L. 1955. Merostomata. Treatise on Invertebrate Paleontology, Part P Arthropoda 2, Chelicerata, P: 20.


  • Fossils (Smithsonian Handbooks) by David Ward
  • Leif Størmer, 1955, Merestomata, Treatise on Invertebrate Paleontology, Part P Arthropoda 2, Chelicerata, Geological Society of America and the University of Kansas, p. P20

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