Velumbrella
Encyclopedia
Velumbrella is a medusoid organism with tentacles known from the Middle Cambrian of Poland, and perhaps related to Rotadiscus
; it's a scleritosed disk with a U-shaped gut. It was originally related to members of the Ediacara biota
but is now thought to be related to the paropsonemid
s.
Rotadiscus
Rotadiscus is a genus of discoidal animal known from the Cambrian Chengjiang biota and classified with the eldoniids.As with other eldoniids, it was originally thought to have been pelagic, but is now thought to be benthic....
; it's a scleritosed disk with a U-shaped gut. It was originally related to members of the Ediacara biota
Ediacara biota
The Ediacara biota consisted of enigmatic tubular and frond-shaped, mostly sessile organisms which lived during the Ediacaran Period . Trace fossils of these organisms have been found worldwide, and represent the earliest known complex multicellular organisms.Simple multicellular organisms such as...
but is now thought to be related to the paropsonemid
Paropsonemid
The paropsonemids are problematic fossils known from the Ordovician to Devonian periods, which may be related to the Cambrian eldoniids. They are typified by the Chengjiang genus Paropsonema....
s.