Rhabdopleura
Rhabdopleura
Genus of hemichordates
Rhabdopleura is a genus of colonial sessile hemichordates belonging to the Pterobranchia class. As one of the oldest living genera with a fossil record dating back to the Middle Cambrian, it is also considered to be the only living genus of graptolites.[1]
Rhabdopleura is the best studied pterobranch in developmental biology.[2] Research in the 2010s by Jörg Maletz and other paleontologists and biologists have demonstrated that Rhabdopleura is an extant graptolite.[3][4]