the researcher, the clade is either considered to either be the class Eldonioidea (containing only the order Velumbrellida) or be the order Eldonida. The...

intermediate position between the basal Herpetogaster and the more derived Eldonioidea. It is known from the Lower Cambrian Haikou Chengjiang deposits of China...

group) (total group) Ambulacraria Cambroernida† Herpetogaster† Phlogites† Eldonioidea† Ambulacraria Hemichordata Echinodermata (crown group) (total group)...

in the Cambrian: Herpetogaster (the type genus), Phlogites, and the Eldonioidea. They are united by a set of common features including at least one pair...

Eldoniidae form a clade, Eldonioidea, with the Rotadiscidae and the informal group known as the paropsonemids. The Eldonioidea are, in turn, part of the...

Kingdom: Animalia Stem group: Ambulacraria Clade: †Cambroernida Class: †Eldonioidea Family: †Rotadiscidae Genus: †Pararotadiscus Zhao and Zhu, 1994 Species...

Scientific classification Kingdom: Animalia Clade: †Cambroernida (?) Class: †Eldonioidea (?) Family: †Rotadiscidae (?) Genus: †Seputus MacGabhann & Murray, 2010...

which were considered to be Cambrian jellyfish. Upon erecting the class Eldonioidea, Dzik assigned Vellumbrella to Eldoniidae rather than Rotadiscidae on...

Kingdom: Animalia Stem group: Ambulacraria Clade: †Cambroernida Class: †Eldonioidea Family: †Rotadiscidae Genus: †Rotadiscus Sun & Hou, 1987 Type species...

Scientific classification Kingdom: Animalia Clade: †Cambroernida Class: †Eldonioidea Family: †Eldoniidae Genus: †Stellostomites Sun & Hou 1997 Type species...

Phlogites P. sp Several specimens Possibly synonymous with Cheungkongella? Eldonioidea indet. Unapplicable Over 30 specimens Possibly within Rotadiscidae...

of southern Australia. It is the latest-surviving known member of the Eldonioidea and Cambroernida. A specimen described in 2018 may represent an additional...