Definition of Megacheirans. Meaning of Megacheirans. Synonyms of Megacheirans

- environments worldwide from the lower Cambrian to the upper Ordovician. Megacheirans are defined by their possession of uniramous "great appendages", which...
- majority of other megacheirans, which typically have a small telson with copious amounts of spines. The only other described megacheiran known with a similar...
- is a feature shared by the great appendages of megacheirans. Similar to the multisegmented megacheirans, the trunk of Kylinxia covers most of the body...
- Leanchoilia is a megacheiran arthropod known from Cambrian deposits of the Burgess Shale in Canada and the Chengjiang biota of China. L. superlata was...
- great appendage-like raptorial arms, it was not homologous with those of megacheirans, and was instead a member of Vicissicaudata, closely related to aglaspidids...
- great appendages of megacheirans belonging to the family Leanchoiliidae like Leanchoilia. However, their placement as megacheirans has been questioned...
- exopod suggested to be used for hunting and swimming respectively. Within megacheirans, Haikoucaris is generally accepted to be a member of the clade Cheiromorpha...
- Dytikosicula's affinity is unclear, although it may be allied with the megacheirans like its apparent relative Dicranocaris. Unusually its head is not preserved...
- frontal projections, as well as a pair of great appendages, like other megacheirans, along with two other cephalic appendages. The trunk had either 20 or...
- in a phylogenetic analysis recovered them as part of a polytomy with megacheirans, marrellomorphs, crustaceans and artiopodans. Still, strabopids are often...