title: Tachypleus
text: # Tachypleus
  
  Tachypleus is a genus of south, southeast and east Asian horseshoe crabs in the family Limulidae.
  
  ## Species
  
  There are two extant (living) species:
  
  * Tachypleus gigas (Müller, 1785)
  * Tachypleus tridentatus (Leach, 1819)
  
  And two extinct species only known from fossil.
  
  * Tachypleus decheni (Zincken, 1862) Upper Eocene Domsen Sands, Germany
  * Tachypleus syriacus (Woodward, 1879) Upper Cretaceous (Cenomanian) Haqel and Hjoula Konservat-Lagerstatten, Lebanon
  