Since the description of the first cycloid from the Carboniferous of Yorkshire, England (Phillips, 1835) the Cycloidea have been placed in many different groups within the Arthropoda. These include agnostid trilobites (Phillips, 1835), xiphosure merostomes (Packard, 1872; Oosterink, 1978), limuloid-like crustaceans (Woodward, 1905), decapod brachyurans (Trauth, 1918), branchiurans (Hopwood, 1925), copepods (Clark, 1989), and maxillopodan crustaceans (Schram et al., 1997).

...

Glaessner (1928) considered that the Cycloidea might be derived from the Paleozoic Phyllocarida. More recently Vannier and Babin (1995) postulated the enigmatic arthropod,...

First Page Preview

First page PDF preview
You do not currently have access to this article.