Product Code Database
Planaterga is a clade of Prosomapoda chelicerate including several Synziphosurina genera (mainly Bunodidae and Pseudoniscidae) and the group Dekatriata (which in turn includes , Chasmataspidida and ). Planaterga is defined by the opisthosoma with tergites broadest at third or fourth and lacking enlarged axial nodes, carapace (prosomal dorsal shield) with reduced genal spines, as well as somite VII (first opisthosomal segment) with reduced appendages and microtergite.
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