Limulus
Limulus is a genus of horseshoe crab, with one extant species, the Atlantic horseshoe crab
L. polyphemus. Many fossil species are known, many of which have since been assigned to other genera. Currently valid fossil species include: ▪
Limulus coffini Reeside & Harris, 1952- Cretaceous, United States ▪
Limulus priscus Münster, 1839- Triassic, Germany ▪
Limulus woodwardi Watson, 1909- Jurassic, England Tentative species: ▪
"Limulus" decheni Zinken, 1862- Paleogene, Germany...