Kasibelinurus (meaning "sibling of dart tail" for its perceived relation to Belinurus at the time) is a genus of xiphosuran from the Devonian.[1] It is part of the family Kasibelinuridae.[2] The type species and only species of Kasibelinurus is K. amicorum (derived from Latin word amicus meaning 'friend'). The type species was set by J. Pickett in 1993.[3]
The genus Kasibelinurus was described by Pickett as having "Ophthalmic ridges effaced; precardiac field defined by anterior prolongations of the cardiac furrows; opisthosomal pleurae with distinct inner and outer zones." The same source later states that Kasibelinurus had a telson with restricted movement based on the shape of the opisthosoma.
Patesia - genus of horseshoe crabs formerly thought to be of Kasibelinurus
Houia - genus of dekatriatan formerly thought to be part of Kasibelinurus