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Petrushevskaya 1971


Figure 25

Origin of the basic forms of recent Nassellaria (original).
I) Assumed ancestral form; II) Lithostrobus; III) Plectopyraminae; IV) Carpocaniinae; V) Artostrobiinae; VI) Eucyrtidiinae; VII) Lychnocaniinae; VIII) Pterocorydinae; IX) Cannobotryidae; X) Ceratocyrtis; XI) Clathromitrinae; XII) Lophophaeninae; XIII) Sethoperinae; XIV) Triospyrididae; XV) Acanthodesmiidae.