crabs like horseshoes
“Xaniopyramis is an extinct genus of xiphosuran, related to the modern horseshoe crab. It lived...Xaniopyramis
“Mesolimulus is an extinct genus of arthropod. The best known examples are found in Solnhofen...Mesolimulus
“Lunataspis aurora is the oldest known Xiphosuran and an ancestor of the modern horseshoe crab...Lunataspis
This category has the following 2 subcategories, out of 2 total.